TDFM-136/136A

 VHF/FM DIGITAL AIRBORNE TRANSCEIVER

OPERATING INSTRUCTIONS

for

Firmware Release 3.x.x

Til Document: 10RE432

Rev. N/C

APRIL 2011

Technisonic Industries Limited.

Copyright © 2010 Technisonic Industries Ltd. All rights reserved.
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

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10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

CONTACT US

Technisonic Industries Limited

240 Traders Blvd. E.

 Mississauga, Ontario.

 L4Z 1W7

 tel: (905) 890-2113

 fax: (905) 890-5338

web: www.til.ca

SCOPE of MANUAL

This document provides Operating Instructions for TDFM-136 and TDFM-136A transceivers with

firmware: Release 3.0.0 and higher only. This document should not be consulted for operation of

transceivers with earlier firmware versions.

This manual does not include transceiver installation instructions. For installation instructions

please see the appropriate Technisonic document, shipped with your transceiver.

FCC COMPLIANCE INFORMATION

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions: (1) this device may not cause harmful interference and (2) this device must accept any

interference received, including interference that may cause undesired operation.

WARNING: For compliance with FCC RF Exposure Requirements, the mobile transmitter antenna 

installation shall comply with the following conditions:

1. The transmitter antenna gain shall not exceed 3 dBi. 

2. The transmitter antenna is required to be located outside of a vehicle and kept at a

separation distance of 1.0 meter or more between the transmitter antenna of this device

and persons during operation.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference in a residential installation. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with the instruction

manual, may cause harmful interference to radio communications. However, there is no guarantee

that interference will not occur in a particular installation. If this equipment does cause harmful

interference to radio or television reception, which can be determined by turning the equipment off

and on, the user is encouraged to try to correct the interference by one or more of the following

measures:

- Re-orient or relocate the receiving antenna

- Increase the separation between the equipment and receiver

- Connect the equipment into an outlet or circuit different from that to which the receiver is

connected.

- Consult the dealer or an experienced radio/TV technician for help.

WARNING:

Changes or modifications not expressly approved by Technisonic Industries could void the

user’s authority to operate the equipment.

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

WARRANTY INFORMATION

The Model TDFM-136(A), VHF/FM Digital Transceiver is under warranty for one year from date of

purchase. Failed units caused by defective parts, or workmanship should be returned to:

Technisonic Industries Limited

240 Traders Blvd. E,

Mississauga, Ontario.

L4Z 1W7

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10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Document Revision Table for 10RE432

Rev. /

Issue Page Description Date ChangeBy

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Table of Contents

SECTION1 ......................................................................................................................................1

1.1 Controls and Display..............................................................................................................1

1.1.1 Front Panel Layout and Controls....................................................................................1

1.1.2 Channel Parameter Display............................................................................................2

1.2 Transceiver Basic Operation..................................................................................................3

1.2.1 Selecting the Active Channel – Main or Guard...............................................................3

1.2.2 Selecting a Main Channel Memory.................................................................................4

1.3 About Commands..................................................................................................................5

1.3.1 Command Levels............................................................................................................5

1.3.2 Command Types............................................................................................................6

1.3.3 Command Groups..........................................................................................................6

1.3.4 Command Reference.....................................................................................................6

SECTION 2 .....................................................................................................................................7

2.1 Channels, Memories and Operating Parameters ..................................................................7

2.1.1 Memory Parameters.......................................................................................................7

2.2 Creating / Editing Memory Operating Parameters .................................................................7

2.2.1 The Frequency Parameter..............................................................................................9

2.2.2 Operating Modes..........................................................................................................10

2.2.3 Squelch Modes.............................................................................................................11

2.2.4 ID Call Operation..........................................................................................................15

2.3 Scan and Multi-Mode Operation ..........................................................................................16

2.3.1 Scan Operation............................................................................................................16

2.3.2 Multi-Mode Operation...................................................................................................17

2.4 Controlling User Access ......................................................................................................18

2.4.1 Control Access to Command Levels.............................................................................18

2.4.2 Set Command Permissions..........................................................................................19

2.4.3 Control Access to Squelch Modes................................................................................21

2.4.4 Control Editing of Memories.........................................................................................21

2.4.5 Control Display of Frequency Information.....................................................................22

2.5 Encrypted Operation ...........................................................................................................23

2.5.1 Loading Encryption Keys..............................................................................................23

2.5.2 Assign KeyTag to Encryption Keys...............................................................................23

2.5.3 Assign Key by KeyTag to Memory................................................................................24

2.5.4 Enable/Disable Encrypted Operation............................................................................26

SECTION 3 ....................................................................................................................................27

3.1 Operator Level 1 Commands ..............................................................................................28

3.1.1 Select the Operating Memory for the Main Channel.....................................................28

3.1.2 Increase Display Brightness.........................................................................................28

3.1.3 Edit Channel Operating Mode......................................................................................28

3.1.4 Scroll Backwards through Available Memories.............................................................29

3.1.5 Start/Stop Scan............................................................................................................29

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10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

3.1.6 Scroll Backwards through Available Memories.............................................................30

3.1.7 Edit Channel Operating Frequency...............................................................................30

3.1.8 Decrease Display Brightness........................................................................................31

3.1.9 Edit Channel Squelch Mode.........................................................................................31

3.1.10 Command Level Up....................................................................................................34

3.1.11 Toggle memory: current/home....................................................................................34

3.1.12 Toggle Talk Around.....................................................................................................34

3.1.13 Erase Encryption Keys...............................................................................................34

3.2 Operator Level 2 Commands...............................................................................................34

3.2.1 Create/Edit All Memory Parameters .............................................................................35

3.2.2 Copy Guard to Main ....................................................................................................36

3.2.3 Lock Keypad ................................................................................................................36

3.2.4 Not Used......................................................................................................................36

3.2.5 Edit Scan List & Enable/Disable Scan..........................................................................36

3.2.6 Edit Memory Text Description.......................................................................................37

3.2.7 Create Shadow Memory...............................................................................................38

3.2.8 Copy Main to Guard ....................................................................................................39

3.2.9 Encryption ON/OFF......................................................................................................39

3.2.10 Command Level Up ...................................................................................................40

3.2.11 Command Level Down................................................................................................40

3.2.12 Set Home Memory......................................................................................................40

3.3 Operator Level 3 Commands...............................................................................................40

3.3.1 Select Boot Channel.....................................................................................................40

3.3.2 Assign Key by KeyTag..................................................................................................41

3.3.3 Display Firmware Release and Version Information.....................................................42

3.3.4 Display Firmware Release and Version Information.....................................................42

3.3.5 Edit Scan Parameters...................................................................................................43

3.3.6 Configure PTT Timer....................................................................................................44

3.3.7 Side Tone Audio Level Adjust.......................................................................................45

3.3.8 PC Data Upload/Download ..........................................................................................45

3.3.9 Display Channel Squelch Parameters..........................................................................46

3.3.10 Command Level Up ...................................................................................................46

3.3.11 Command Level Down................................................................................................46

3.3.12 L3-# not used ............................................................................................................46

3.4 Maintenance Commands (Level 4).....................................................................................47

3.4.1 Set Default Record.......................................................................................................47

3.4.2 Set Restricted Level Access Mode...............................................................................48

3.4.3 Set Command Permissions..........................................................................................48

3.4.4 Set Memory Edit...........................................................................................................49

3.4.5 L4-5. not used.............................................................................................................50

3.4.6 L4-6. not used.............................................................................................................50

3.4.7 Set Frequency Display.................................................................................................50

3.4.8 Assign KeyTags to Encryption Keys .............................................................................50

3.4.9 Set Squelch Restrictions..............................................................................................52

3.4.10 Command Level Up....................................................................................................53

3.4.11 Command Level Down................................................................................................53

3.4.12 L4-# not used.............................................................................................................53

3.5 Supervisor Commands (Level 5).........................................................................................54

3.5.1 Toggle RF Bias Voltage................................................................................................54

3.5.2 Scroll Test.....................................................................................................................54

3.5.3 L5-3 not used...............................................................................................................54

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

3.5.4 Re-Set Database to Factory Defaults...........................................................................55

3.5.5 L5-5 not used...............................................................................................................55

3.5.6 Transparent Mode........................................................................................................55

3.5.7 Edit Passwords.............................................................................................................56

3.5.8 Run Bootloader............................................................................................................56

3.5.9 Set Unit ID (UID)...........................................................................................................57

3.5.10 L5-0 not used.............................................................................................................57

3.5.11 Command Level Down................................................................................................57

3.5.12 L5-# not used.............................................................................................................57

SECTION 4 ....................................................................................................................................59

4.1 Appendix A. Installing the Jumper for Restricted Level Access............................................59

4.2 Appendix B. CTCSS Tone and DCS Code Tables................................................................60

4.3 Appendix C. Programming Channel data using TDP and a PC............................................61

4.4 Appendix D. 2.5 kHz & 6.25 kHz Valid Frequencies.............................................................63

4.5 Appendix E. Default Tables..................................................................................................64

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10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Table of Figures

Figure 1-1. The TDFM-136 front panel showing control & display features..................................... 1

Figure 1-2. The TDFM-136 display – unique parameters highlighted...............................................2

Figure 1-3. The TDFM-136 display - common channel parameters highlighted................................2

Figure 1-4. The active channel display and control points................................................................3

Figure 1-5. Control points for selecting an active memory for the MAIN channel..............................4

Figure 1-6. The Screen showing 'Level 3” in the Command Level Display Position..........................5

Figure 2-1. The user screen to edit the Main frequency....................................................................8

Figure 2-2. The user screen to edit the Guard frequency.................................................................8

Figure 2-3. The user screen to edit the Main frequency for receive..................................................9

Figure 2-4. The user screen to edit the Main frequency for transmit.................................................9

Figure 2-5. The user screen to edit the Main Operating Mode........................................................10

Figure 2-6. The screen to edit the Main Squelch Mode for receive.................................................12

Figure 2-7. The noise squelch edit screen......................................................................................13

Figure 2-8. The screen to edit the Main Squelch Mode for transmit................................................13

Figure 2-9. The CTCSS Tone squelch edit screen..........................................................................13

Figure 2-10 The DCS Code squelch edit screen............................................................................14

Figure 2-11 The digital NAC squelch edit screen............................................................................14

Figure 2-12 The digital TalkGroup squelch edit screen...................................................................15

Figure 2-13 The digital ID Call squelch edit screen........................................................................15

Figure 2-14 The Set Unit ID edit screen..........................................................................................16

Figure 2-15. Identifying Graphic for Primary Channel with Shadows..............................................18

Figure 2-16. Identifying Graphic for Shadow Channel....................................................................18

Figure 2-17. The screen to enter a password for restricted level access........................................19

Figure 2-18. The screen to set the Maintenance password............................................................19

Figure 2-19. The Screen to Edit the Level 1 Permissions...............................................................20

Figure 2-20. The Screen showing Mode Select restrictions for Analog Receive.............................21

Figure 2-21. The screen for Enabling/Disabling edit of a specific Memory......................................21

Figure 2-22. The error screen on trying to edit a disabled memory.l...............................................22

Figure 2-23. The screen for Enabling/Disabling Frequency Display for a specific Memory.............22

Figure 2-24. The screen showing memory with frequency display disabled...................................22

Figure 2-25. The screen to select the SLN to assign the KeyTag to...............................................23

Figure 2-26. The screen to edit the KeyTag....................................................................................24

Figure 2-27. The screen to assign another KeyTag or exit..............................................................24

Figure 2-28. Select the Main memory to assign the key to.............................................................25

Figure 2-29. Select the KeyTag to assign to the memory................................................................25

Figure 2-30. Select decrypt on Any Key or Assigned Key...............................................................25

Figure 2-31. The screen to assign another key or exit....................................................................26

Figure 2-32. The analog memory encryption error screen..............................................................26

Figure 2-33. The error screen for no encryption key assigned........................................................26

Figure 2-34. The Encryption Enabled for Main memory screen......................................................26

Figure 3-1 The User Screen to Enter a Memory Number...............................................................28

Figure 3-2. The User Screen to Edit the Operating Mode...............................................................28

Figure 3-3. Trying to start scan on a Channel with Scan disabled..................................................29

Figure 3-4. Start scan on a Channel with Scan enabled.................................................................29

Figure 3-5. The User Screen to Edit the Main frequency................................................................30

Figure 3-6. Editing the Squelch Mode.............................................................................................31

Figure 3-7. Editing the Noise Squelch Value...................................................................................31

Figure 3-8. Selecting the CTCSS Tone Value.................................................................................32

Figure 3-9. Selecting the DCS Code Value.....................................................................................32

Figure 3-10. Editing the P25 TalkGroup Value................................................................................32

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Figure 3-11. Editing the P25 NAC Value.........................................................................................33

Figure 3-12. Editing the P25 ID Call Value......................................................................................33

Figure 3-13. The Screen to Enter a Scan List or Enable/Disable Scan...........................................37

Figure 3-14. The Screen Showing Scan Enabled for this Memory..................................................37

Figure 3-15. Editing the Text Description........................................................................................37

Figure 3-16. Entering a Primary Memory for the Shadow Channel.................................................38

Figure 3-17. Entering a Shadow Channel Memory Number...........................................................38

Figure 3-18. Edit the Shadow Memory Parameter - Text................................................................39

Figure 3-19. The Encryption Enabled for Main...............................................................................39

Figure 3-20. Set the Main Channel Home Memory.........................................................................40

Figure 3-21. Selecting Main Channel Boot Memory.......................................................................40

Figure 3-22. Selecting the Memory to Assign the Key to................................................................41

Figure 3-23. Selecting the KeyTag to Assign to the Memory...........................................................41

Figure 3-24. Selecting the decrypt option: Any Key or Assigned Key..............................................41

Figure 3-25. Screen to Assign another key or exit..........................................................................42

Figure 3-26. Selecting Edit mode...................................................................................................42

Figure 3-27. Showing the Code Release Information.....................................................................42

Figure 2-28. Select the Scan Revert Mode.....................................................................................43

Figure 2-29. Set the Scan Reply Timer Value.................................................................................43

Figure 3-30. Set the Scan Monitor Timer Value..............................................................................44

Figure 3-31. Set the Scan Delay Timer Value.................................................................................44

Figure 3-32. Set the PTT Timer Value.............................................................................................44

Figure 3-33. Set the Side tone Audio Level....................................................................................45

Figure 3-34. Upload/Download Memory Data to/from the PC.........................................................45

Figure 3-35. Display of the Receive Squelch Parameter Values.....................................................46

Figure 3-36. Display of the Transmit Squelch Parameter Values....................................................46

Figure 3-37. Select the Access Mode from a list.............................................................................48

Figure 3-38. Edit the Level 1 Permissions......................................................................................48

Figure 2-39. Edit the Level 2 Permissions......................................................................................48

Figure 3-40. Edit the Level 3 Permissions......................................................................................48

Figure 3-41. Enable/Disable edit of a specific Memory...................................................................49

Figure 3-42. The Frequency Display Enable/Disable screen..........................................................51

Figure 3-43. A memory with frequency display disabled.................................................................50

Figure 3-44. Step through available keys by SLN...........................................................................51

Figure 3-45. The screen to edit the KeyTag....................................................................................51

Figure 3-46. The screen to assign another KeyTag or exit..............................................................51

Figure 3-47. The Screen to Set Available Squelch Modes for Analog Receive...............................52

Figure 3-48. The Screen to Restrict Editing of the Noise Squelch Value........................................53

Figure 3-49. The Screen to Restrict Available CTCSS Tones.........................................................53

Figure 3-50. Restrict Available DCS Codes....................................................................................53

Figure 3-51. RF Bias Test...............................................................................................................54

Figure 3-52. Main Channel Memory Loop Test - Start Screen........................................................54

Figure 3-53. Main Channel Memory Loop Test - Running...............................................................54

Figure 3-54. Erase and Re-Program to Factory Defaults................................................................55

Figure 3-55. Transparent Mode......................................................................................................55

Figure 3-56. Edit Maintenance Password.......................................................................................56

Figure 3-57. Edit Supervisor Password..........................................................................................56

Figure 3-58. The Bootloader Screen...............................................................................................56

Figure 3-59. Set Unit ID Number (screen for Main shown).............................................................57

Figure 4-1. The Screw Positions to remove the Left Hand Side Panel............................................59

Figure 4-2. The Shunt Position to Enable Restricted Level Access................................................59

Figure 4-3. The Communicate with PC Command Screen.............................................................61

Figure 4-4. The TDP-136 Radio Programming Software Window...................................................61

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10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Table of Tables

Table 2-1. Transceiver Operating Modes........................................................................................10

Table 2-2. Receive and Transmit Squelch Modes...........................................................................11

Table 2-3. Permission Applicability by Command and Level...........................................................20

Table 2-4. Squelch Mode Restrictions............................................................................................21

Table 3-1. Command Level Reference..........................................................................................27

Table 3-2. Transceiver Operating Modes........................................................................................29

Table 3-3. Receive and Transmit Squelch Modes...........................................................................31

Table 3-4. Extra Characters for Text Edit.......................................................................................38

Table 3-5. The Channel Template Factory Defaults........................................................................47

Table 3-6. Permission Applicability wrt Command Levels...............................................................49

Table 3-7. Squelch Modes that can be Restricted..........................................................................51

Table 4-1. CTCSS Tones................................................................................................................60

Table 4-2. DCS Codes....................................................................................................................60

Table 4-3. Valid Frequency Pattern.................................................................................................63

Table 4-4. Memory Template Factory Defaults................................................................................64

Table 4-5. Configuration Parameter Default Values........................................................................64

Table 4-6. Scan Parameter Default Values.....................................................................................64

Table 4-7. Unit Identification (UID) Default Values..........................................................................64

Table 4-8. Restricted Level Password Default Values.....................................................................64

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

SECTION 1

INTRODUCTION

This section provides an overview of the basic transceiver operation, it is broken into three

subsections as follows:

• an overview of the controls and display information

• a description of basic use of the transceiver

• an introduction to the transceiver command functions

 1.1 Controls and Display

This section provides basic information on the controls and display information provided for the user

on the front panel of the transceiver.

 1.1.1 Front Panel Layout and Controls

All the user interface controls and display information are available to the user on the front panel of

the transceiver, with the exception of the PTT control, which is activated by an external button. The

front panel layout of the TDFM-136 is shown in figure 1-1 below.

Figure 1-1. The TDFM-136 front panel showing control & display features.

The control and display features are identified as follows:

1. LED channel squelch indicators – light on signal received (top=Main, bottom=Guard).

2. Channel parameter display – two line by 24 character LED display (top=Main, bottom=Guard).

3. Power ON/OFF switch and Main channel volume control (rotary, with switch).

4. Guard channel volume control (rotary).

5. Squelch defeat switch (push button) – Press to open squelch of both Main and Guard channels

(in analogue modes of operation).

6. Keyloader port – for use with KVL 3000+ keyloader.

7. Main/Guard switch (toggle) – selects active channel (main or guard), for transmit and edit.

8. Guard 1 or 2 switch (toggle) – selects guard memory (GD1 or GD2), for transmit and edit.

9. Transmit Power switch (toggle) – selects transmit power, high (10W) or low (1W).

10. Keypad (12 push buttons) – control other transceiver features (described below).

Technisonic Industries Ltd. 1
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 1.1.2 Channel Parameter Display

Figure 1-2 below shows the display of the unit, and identifies the individual parameters

shown for each of the main and guard channels. 

Figure 1-2. The TDFM-136 display – unique parameters highlighted.

The parameters that are specific to one channel or are not channel related are identified in figure 

1-2 above. Items 1 – 6 fall into this category, they are described as follows:

1. Main channel information is displayed on the top row of the display.

2. Guard channel information is displayed on the bottom row of the display.

3. The Main channel can have up to 230 memory positions (001 to 230), the current active memory

number for the Main channel is shown in the first three characters of the line.

4. The Guard channel can have two memories, GD1 and GD2, the currently active Guard memory 

number is shown in the first three lines of the bottom row.

5. Memories for the Main channel can be scanned, when in use, scan information is shown at the 

4

th character position on the top row.

6. On the bottom row, the 4th character position is used for different purposes: it will indicate the 

current command level as well as showing the lock icon (§) if the keypad access has been 

locked out.

Figure 1-3 below shows the display of the unit, and identifies those parameters that are

common to both main and guard channels. 

Figure 1-3. The TDFM-136 display - common channel parameters highlighted.

2 Technisonic Industries Ltd.
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

The common parameters are identified as items 7 through 11 and are as follows:

7. Up to eight characters are available for a text description of the memory.

8. One character position is used to indicate the operating mode:

 Analog modes: wide "w"(25kHz.), narrow "n" (12.5kHz.)

 Digital mode: project 25 digital "D" (12.5kHz.).

9. Eight characters are used to indicate the frequency in use.

10. One character indicates either Receive or Transmit as: "R" or "T".

11. The final character indicates the current squelch mode:

 Analog modes: noise squelch "x", CTCSS tones "t", or DCS codes "c"

 Digital modes: monitor "m", NAC only "n", TalkGroup + NAC "g"

 1.2 Transceiver Basic Operation

For basic operation of the transceiver the user has the yolk mounted PTT key and memory

up/down keys in addition to the controls discussed previously. Basic operation is discussed

in this section.

 1.2.1 Selecting the Active Channel – Main or Guard

When the user presses 'PTT', the unit will transmit with the parameters of the active channel and

memory, that the user has selected. The method of selecting MAIN or GUARD channel is

described below.

Figure 1-4. The active channel display and control points.

1. When the MN/GD switch is in the MN position then the MAIN channel is active. The

MAIN channel data is shown on the top line of the display. The MAIN channel supports

230 memory positions (001 to 230). 

2. When the MN/GD switch is in the GD position then the GUARD channel is active. The

GUARD channel data is shown on the bottom line of the display. The GUARD

channel has two fixed memories: GD1 and GD2, the GUARD memory used is

determined by the position of the G1/G2 switch. 

Technisonic Industries Ltd. 3
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 1.2.2 Selecting a Main Channel Memory

For the MAIN channel there are 230 possible memory positions to choose from (001 to 230), the

method of selecting a memory for the MAIN channel is described below.

Figure 1-5. Control points for selecting an active memory for the MAIN channel.

There are several ways in which the user can control the active memory for the MAIN channel:

1. Press 'CHAN' button (1) , and then enter the number of an existing memory (001 to 230), and

press 'ENTER' (#). The MAIN channel will jump directly to that memory.

Note: See command L2-1 to add more memories, see 1.3 below for more information.

2. Press and hold either the back arrow (4), or the forward arrow (6) button, and the unit will

scroll through the existing (already programmed) memories.

Note: the scroll will wrap both up and down (. . . 230 ↔ 001. . . ).

3. Press the 'ENTER' button (#), and the unit's Main channel will toggle between the current

memory and the designated 'home' memory. 

Note: If no 'home' memory has been selected, then the default is memory 001.

Example:

The user has memories 001, 002, 004, 010, 024, 100 and 151 programmed into the transceiver.

The MAIN channel is selected, and the active memory is 004. No home memory has been

defined, so the default is 001.

If the back arrow is pressed and held, the MAIN display will scroll to memory 002, then to 001, and

then to 151, the sequence will continue until the user releases the key.

For the Main channel, if the user presses the “ENTER” button, then the MAIN channel will jump to

memory “001”, if the Main memory was something other than “001”, then pressing “ENTER” again

will return to that memory.

4 Technisonic Industries Ltd.

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TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 1.3 About Commands

The transceiver supports commands to provide more advanced control and configuration

features. A command is simply a key press, or series of key presses, that cause the unit to

perform a function. This section provides an overview of the command architecture.

 1.3.1 Command Levels

In order to accommodate all the commands required to provide the necessary operation,

commands have been divided up into levels (abbreviated as 'L1', 'L2' etc). This results in the most

common commands needing the fewest key presses to access. 

There are five command levels in all, three of which are available to the operator (Operator

Commands). For each command level up to 10 commands are available: 1-9, and '#'. Note: for

command level 1 (L1) only, the ESC (*) button has an associated function as you cannot go a level

down. 

The PROG (0), and the ESC (*) key are used to move between the command levels as follows:

step up through command levels

step down through command levels

When stepping through command levels, the level is shown as a subscript digit in the 4th character

position on the lower line of the display, see figure. Note that this display position is left blank for

the default level (L1). 

Figure 1-6. The Screen showing 'Level 3” in the Command Level Display Position

The Operator Command levels 2 and 3 (L2 & L3) are 'time limited', if the user gets into one of

these command levels and does not enter a command within 5 seconds, the unit automatically

returns to command level 1.

Note that after exiting a L2 or L3 command, the timer is reset to 5 seconds, so if you want to return

to level 1 immediately, you have to press level down key ('ESC' or '*'). This allows you to perform

another command on that level without having to start over from level 1.

In addition to the three command levels available to the operator, the unit can be put into a mode

that allows access to maintenance and supervisor commands. These restricted command levels

(L4 & L5) are to allow authorized personnel to set operating policy for the radio through use of

'Permissions', and perform other maintenance and configuration functions; these are explained

later in the manual. 

The restricted command levels (L4 and L5) should NEVER be enabled in flight. Incorrect

use could render the unit non-functional! These levels exist for configuration and

maintenance use only. 

Technisonic Industries Ltd. 5

001 Control w136.0000Rx

GD1Forestry n156.5000Rt
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 1.3.2 Command Types

There are two basic types of commands: inherent, and interactive:

Inherent commands

These are simple 'one-touch' commands, they do not need any further input from the user.

Example: the display brightness control commands (up/down arrows, keys 2 & 8)

Interactive commands

These commands require further input from the user, and they must end as follows:

accept the entry and exit

abandon the entry and exit

Example: the 'Frequency' command requires that the user enter a frequency, before exiting.

 1.3.3 Command Groups

The commands can be characterized as belonging to one of three groups:

Operating commands are those which perform a function directly related to the use of the radio.

Edit commands allow the user to Edit the RF channel parameters (frequency, mode etc).

Configuration commands affect how the radio operates, including how other commands work.

 1.3.4 Command Reference

Throughout the manual the commands will be referred to by level and number to make it clear what

command is being referenced. The short form used is as follows:

Level - abbreviated as 'L' followed by a number, a dash separator, and a command number.

Examples:

The 'edit frequency' command is: level one, command number 7. So the short form is: L1-7. Since

under normal circumstances the transceiver is in level 1, to access the command simply press '7'.

Level two, command number 3 is shown as: L2-3. To get to this command you must first go to

level 2 (by pressing the '0' key), then enter the command key, '3'.

6 Technisonic Industries Ltd.
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

SECTION 2

TRANSCEIVER OPERATION

This section describes operating the transceiver including using the command functions to

perform common tasks. This section provides more advanced information about

operating the transceiver, starting with the basics and moving through the more advanced

features.

2.1 Channels, Memories and Operating Parameters

The transceiver supports two (2) channels: Main and Guard. Each of these channels

operates using the parameters of the currently selected memory for that channel.

The Main channel operates using the parameters of the currently active main memory, and

there can be up to 230 memories available (001 to 230) on the Main channel. 

Main memory 001 must always exist, and is the only memory programmed from the factory.

Similarly, the Guard channel operates using the parameters of the currently active Guard

memory. The difference is that the Guard channel supports only two memories: GD1 and

GD2, these may be selected via the front panel G1/G2 switch.

Both of these memories (GD1 & GD2) must exist and are programmed from the factory. 

The parameters for any factory programmed memory may be changed by the user.

 2.1.1 Memory Parameters

Each memory has a variety of parameters that may be edited by the user including:

• frequency – 8 characters

• operating mode – 1 character

• squelch mode and squelch mode value – 1 character displayed

• text description – up to 8 characters

• scan list – 1 character

The ability to edit some of these may be restricted under certain operating conditions.

Example: while scan is available for any Main channel memory, the user may not set scan

parameters for either Guard channel, or for 'shadow' channels on the Main channel.

2.2 Creating / Editing Memory Operating Parameters

There are two ways to create or edit the memories in the transceiver: from the transceiver

front panel, or using the PC programming software. PC programming is discussed in

Appendix C. 

To create a new memory (Main channel only) or to edit all the parameters of an existing

memory (Main or Guard), use command L2-1. This command edits all the parameters of

the selected memory, if the memory exists then that data is used, if you are creating a new

Technisonic Industries Ltd. 7
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

memory then default data is used. In either case the individual parameter editors are

sequenced so that all the parameters for the memory may be edited. See section 3.2.1

Create/Edit All for more information. 

The remainder of this section focuses on operation of the individual parameter editors.

All edit commands are interactive commands (they expect input from the user), as such, the

line on the display that does not have the parameter to be edited, becomes a prompt line to

guide the user as to the valid keys for that edit.

Example: The edit frequency command, figure 2-1 shows the edit frequency screen if the

active memory is 001 on Main. Note that a cursor flashes on the second character in the

frequency field , on the Main display (top row) and that the Guard Display (bottom row)

has been changed to a prompt line . This prompt tells the user what command is running,

and what keys are valid.

 Figure 2-1. The user screen to edit the Main frequency

When the Guard Channel is active, the situation is reversed: the cursor is placed on the

second digit in the frequency field on the Guard line, and the top line becomes the

prompt line.

 Figure 2-2. The user screen to edit the Guard frequency

Calling Key.

Some editors simply allow the user to select a set value from a list; in these cases, the key

used to 'call' the editor will also step up through the available choices. This allows the user

to make a selection without having to further navigate the keypad.

Simplex and duplex parameters.

Some of the transceiver parameters are simplex only: they are the same for both transmit

and receive operation. Other parameters are duplex: these may be (but do not have to be)

different for transmit than they are for receive.

Accept and Continue / Accept and Exit

For many edit functions (example Operating Mode), once the user has selected a value,

pressing the 'ENTER' key will accept the entry and exit the editor. However, some edit

functions require that the user accept a value before advancing (examples: Create New

/Edit All, and Edit Squelch Mode), in these cases pressing the 'ENTER' key will advance to

the next point in the editor.

Abandon Edit

In all cases, the key will abandon the edit with no changes made.

8 Technisonic Industries Ltd

001 Main w136.0000Rx

Edit Frequency (0-9,#*)

1

2

1

2

Edit Frequency (0-9,#*)

GD1 Forestry n156.5000Rt

2

1

1 2
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 2.2.1 The Frequency Parameter

The TDFM-136 supports frequencies in the range 136.0000, to 174.0000 MHz. Frequencies in the

analog wide band (25 kHz. channel spacing), the analog narrow band (12.5 kHz. Channel

spacing), and the P25 band (Phase 1 – 12.5 kHz. channel spacing) can be entered at any 2.5 kHz

step. In addition, frequencies can be entered on the frequencies proposed for P25 Phase 2. Note

that this does not mean that the transceiver operates in this mode (6.25 kHz. channel spacing), just

that the transceiver can be tuned to those frequencies; the channel spacing will still be either 25

kHz. or 12.5 kHz. See appendix D for the 6.25 kHz frequencies supported. 

Frequency is a simplex/duplex parameter, that is, the unit can transmit and receive on the same

frequency or it may be configured so that the transmit frequency and receive frequency are

different.

Editing Frequencies 

The edit frequency command is easily accessible, it is command L1-7. To access this command,

simply press '7', on the front panel keypad. Notice that the key is also marked “FREQ”.

This command allows the user to edit the operating frequency of the selected channel & memory.

The frequency will be edited in duplex mode: first Receive, then Transmit. Upon start, the cursor

appears at the second character in the Frequency field of the channel to be edited. The edit screen

appears as follows:

 Figure 2-3. The user screen to edit the Main frequency for receive

The user may now enter the desired operating frequency as follows: 

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

The editor will not accept a value outside the limits of 136.0000 MHz. to 174.0000 MHz. In addition

frequency supports 2.5 kHz increments, and valid 6.25 kHz channel spacing frequencies in all

Operating modes. See appendix D for valid 6.25 kHz frequencies.

Once the receive parameter is entered, the 2nd last character in the display will switch from “R” to

“T”, the user can now enter the transmit value. Note that the receive value is automatically entered,

so to get simplex operation, simply accept this entry.

 Figure 2-4. The user screen to edit the Main frequency for transmit

When complete, accept the entry if it is correct, or escape to exit without saving.

Technisonic Industries Ltd. 9

001 Main w136.0000Rx

Edit Frequency (0-9,#*)

001 Main w136.0000Tx

Edit Frequency (0-9,#*)
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 2.2.2 Operating Modes

The operating mode is defined as the RF channel spacing and modulation type used for the

selected channel/memory on the transceiver.

The unit supports three operating modes: Analog wide, analog narrow, and P25 digital. In the

analog wide mode, the radio is operating on 25kHz. channel spacing, on both analog narrow, and

in P25 digital mode, the radio operates with 12.5kHz. channel spacing. In analog modes the

transceiver operates using standard frequency modulation, in the P25 mode the unit uses C4FM. 

Table 2-1 shows the available Operating Modes, the bandwidth, and the indicating character used.

Table 2-1 Transceiver Operating Modes

Operating Mode Bandwidth Indicator

Analog Wide 25 kHz 'w'

Analog Narrow 12.5 kHz 'n'

P25 Digital 12.5 kHz 'D'

The user can easily switch between modes on any memory for any channel (any Main memory,

and both Guard1 and Guard2). Since the squelch modes are not common across analog and

digital operating modes, if you change between these modes, the Squelch Mode will be affected

(for more on this see 'Squelch Modes' below).

The operating mode is a simplex parameter.

Editing Operating Mode

The edit operating mode command is easily accessible, it is command L1-3. To access this

command, simply press '3', on the front panel keypad. Notice that the key is also marked “MODE”.

This command allows the user to edit the operating mode of the selected channel & memory. Since

operating mode is simplex only, the editor is very simple. Upon start, the cursor appears at the

operating mode character field of the channel to be edited. The edit screen appears as follows:

 Figure 2-5. The user screen to edit the Main Operating Mode.

You may now edit the Operating Mode as follows:

step up/down through available operating modes (w, n, D)

accept the entry and exit

abandon the entry and exit

10 Technisonic Industries Ltd

001 Control w136.0000Rx

Edit Mode (|~3,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 2.2.3 Squelch Modes

Squelch mode refers to the method employed to defeat squelch and open the receiver. The

transceiver supports a variety of squelch modes for both analog and digital operation, these are

shown in table 2-2 below.

Table 2-2. Receive and Transmit Squelch Modes

Analog Digital

Rx Tx Rx Tx

Noise x CTCSS Tones t Monitor mm TalkGroup + NAC g

CTCSS Tones t DCS Codes c NAC Only n ID Call ii

DCS Code c Inhibit - TalkGroup + NAC g Inhibit -

Non-Selective Squelch

In analog operating modes (w & n), the Noise squelch is non-selective, that is: if a valid signal of

enough power is present, the squelch will be defeated and the signal received. 

Note: Noise squelch is the only squelch parameter that is global, the value needs only to be set

once on any memory and it will apply to all memories on that channel.

For the P25 digital mode (D), the Monitor mode is non-selective: it a P25 digital signal of enough

power is present, the squelch will be defeated and the signal received. There is no level setting.

Note: this does not mean that encrypted signals will be received and decoded in these modes!

Selective Squelch

The other squelch modes are selective: the transmitting system must be operating in the same

squelch mode as the receiving system, and must provide the correct information within that mode.

Scope

Squelch modes are non-orthogonal, that is, they are not the same across differences in Operating

Mode or for receive and transmit operation. 

Parameters in Memory

For each memory created there is a default value for each of the squelch modes: the memory

does have a CTCSS tone, a DCS code, a TalkGroup and a NAC assigned, it is just that these

parameters are not used unless the associated squelch mode is chosen. 

Since each squelch parameter exists for each memory, and each has a default value, these default

values, like all user editable channel parameters, can be set. In addition, Squelch use may be

restricted according to: which Squelch Modes may be selected for any Operating Mode, which

Squelch Modes may be edited (ie change value), and – in the case of Tones and Codes – which

values are available to be selected. See the Maintenance Level (L4) for appropriate commands.

Description

For signals that are on frequency and not encrypted, the Squelch Modes work as follows:

In Analog Modes:

Noise Squelch, 'x' – analog receive only, non-selective. The receiver will open if there is

enough RF energy on frequency. This is the default analog squelch mode.

CTCSS Tone, 't' – analog receive and transmit, selective. The receiver will open if the signal

received also carries the correct tone. The tones may be the same or different for receive or

transmit on any memory.

DCS Code, 'c' - analog receive and transmit, selective. The receiver will open if the signal

received also carries the correct code. The codes may be the same or different for receive or

transmit on any memory.

Technisonic Industries Ltd. 11
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

In Digital Mode

Monitor Mode 'm' - digital receive only, non-selective. The receiver will open on any valid P25

signal. This is the default digital squelch mode.

Network Access Code (NAC) 'n' – digital receive only, selective. The receiver will open on

any P25 compliant digital signal, having the correct NAC.

Talkgroup + NAC 'g' – digital receive and transmit, selective. The receiver will open on any

P25 compliant digital signal, having the correct NAC, and the correct TalkGroup. For transmit it

indicates that the specified NAC and TalkGroup codes will be transmitted.

ID Call 'i' – digital transmit only, selective. The transmitted signal will carry the ID of a specific

transceiver. Only a radio with that ID programmed as it's Unit Identification (UID) will be able

to receive the signal. Note that the UID can be set via command L5-9. 

In Both Analog and Digital Modes

Transmit Disabled '-' – valid for both analog and digital operating modes, transmit only. This

indicates that transmit is disabled for this memory. Pressing PTT will result in a display of

“Transit Disabled” on the screen.

Editing Squelch Modes

The edit squelch mode command is easily accessible, it is command L1-9. To access this

command, simply press '9', on the front panel keypad. Notice that the key is also marked “SQL”.

This command allows the user to edit the squelch mode of the selected channel & memory. Since

squelch mode is duplex, and the selective squelch options have values that can be edited as well,

this editor has more steps than most others. The general flow of the editor is as follows:

1. Select receive Squelch mode (dependent on operating mode).

2. If Squelch mode has a value then select the value(s)

3. If simplex then done, else repeat for transmit.

All Squelch mode edits start the same way, the cursor appears at the Squelch mode character field

of the channel to be edited. The edit screen appears as follows:

 Figure 2-6. The screen to edit the Main Squelch Mode for receive.

You may now edit the Squelch Mode as follows:

step up/down through available squelch modes.

accept the entry and exit

abandon the entry and exit

Remember that the available squelch modes will be constrained by the operating mode as shown

in table 2-2 above.

12 Technisonic Industries Ltd

001 Control w136.0000Rx

Edit Sql Mode (|~9,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Editing analog squelch modes

For analog receive noise squelch the screen to change the value appears as follows:

 Figure 2-7. The noise squelch edit screen.

Note that the cursor drops to the bottom row, ready to edit, for noise squelch, the editor operates

as follows:

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

If editing the receive value, when you press “ENTER” to continue, the editor returns to the first

screen, but the Transmit/Receive indicator character (second last character on the line) has

changed to a “T” to indicate that you are editing for transmit. This allows you to set 'duplex values

for the selective squelch (ie transmit may be different than receive). The screen to select a transmit

squelch mode appears as follows:

 Figure 2-8. The screen to edit the Main Squelch Mode for transmit.

The edit keys are the same as for the first screen.

Note that for analog modes “Tx” indicates that no selective squelch will be used, there is no value

associated with the “x” choice for transmit.

For analog CTCSS Tone squelch the user would have to select 't' in the initial screen (in analog

modes only), if so then the editor to change the value would appear as follows:

 Figure 2-9. The CTCSS Tone squelch edit screen.

The editor works as follows:

step up/down through available tone choices

accept the entry and continue

abandon the entry and exit

See Appendix B for the table of CTCSS tones supported.

Technisonic Industries Ltd. 13

001 Control w136.0000Rx

Noise Level: 10

001 Control w136.0000Tx

Edit Sql Mode (|~9,#*)

001 Control w136.0000Rt

CTCSS Tone: (|~,#*) 67.0
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

As with all the squelch editors, when you press “ENTER” to continue (if editing receive), the editor

returns to the first screen, but the Transmit/Receive indicator character (second last character on

the line) has changed to a “T” to indicate that you are editing for transmit. If you are finishing an

edit of the transmit value, then the values are written to memory and the editor exits.

For analog DCS Code squelch the user would have to select 'c' in the initial screen (in analog

modes only), if so then the editor to change the value would appear as follows:

 Figure 2-10. The DCS Code squelch edit screen.

The editor works as follows:

step up/down through available code choices

accept the entry and continue

abandon the entry and exit

See Appendix B for the table of DCS codes supported.

As with all the squelch editors, when you press “ENTER” to continue (if editing receive), the editor

returns to the first screen, but the Transmit/Receive indicator character (second last character on

the line) has changed to a “T” to indicate that you are editing for transmit. If you are finishing an

edit of the transmit value, then the values are written to memory and the editor exits.

Editing digital squelch modes

For digital NAC squelch the user would have to select 'n' in the initial (receive) screen (in digital

mode only), if so then the editor to change the value would appear as follows:

 Figure 2-11. The digital NAC squelch edit screen.

The editor works as follows:

to enter number, cursor automatically advances. $=HEX Mode.

accept the entry and continue

abandon the entry and exit

The default edit mode is hexadecimal (HEX), three digits 000 to FFF, the dollar sign “$” is used to

indicate a HEX edit. The edit mode can be changed to decimal using command L3-3. In that case

the range would be 0000 to 4095.

As a squelch mode by itself, NAC exists for receive only so when you press “ENTER” to continue the

editor returns to the first screen, but the Transmit/Receive indicator character (second last

character on the line) has changed to a “T” to indicate that you are editing for transmit. 

14 Technisonic Industries Ltd

001 Control w136.0000Rc

DCS Code: (|~,#*): 23

021 Home-1 D146.1250Rn

P25 NAC: $295
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

For digital TalkGroup+NAC squelch the user would have to select 't' in the initial (receive) screen

(in digital mode only), if so then the editor to change the value would appear as follows:

 Figure 2-12. The digital TalkGroup squelch edit screen.

The editor works as follows:

to enter number, cursor automatically advances. $=HEX Mode.

accept the entry and continue

abandon the entry and exit

The default edit mode is hexadecimal (HEX), four digits 0000 to FFFF, the dollar sign “$” is used to

indicate a HEX edit. The edit mode can be changed to decimal using command L3-3. In that case

the range would be 00000 to 65535.

As a squelch mode TalkGroup includes NAC for both receive and transmit so when you press

“ENTER” to continue the editor continues to the NAC editor (shown above). When you exit from

NAC, then if you were editing for receive you would return to the first screen, but the

Transmit/Receive indicator character (second last character on the line) has changed to a “T” to

indicate that you are editing for transmit. If you are finishing an edit of the transmit value, then the

values are written to memory and the editor exits.

For digital ID Call squelch (available for digital transmit only) the user would have to select 'i' in

the transmit screen, if so then the editor to change the value would appear as follows:

 Figure 2-13. The digital ID Call squelch edit screen.

The editor works as follows:

to Decimal mode: enter number, cursor automatically advances.

accept the entry and continue

abandon the entry and exit

The edit mode is decimal only seven digits 0000001 to 9999999.

As a squelch mode, ID Call exists for transmit only so when you press “ENTER” to continue the

values are written to memory and the editor exits.

 2.2.4 ID Call Operation

As seen above, the transceiver can be configured, in digital mode, to use ID call as a selective

squelch method, in this mode the transmitting unit sets it's TalkGroup to zero (0), and transmits the

intended Unit ID number (decimal 0 to 9,999,999), upon seeing the '0' TalkGroup, the receiver

ignores everything except the ID number. 

Of course the receiver will have to be on the correct frequency and in digital mode.

Technisonic Industries Ltd. 15

021 Home-1 D146.1250Rn

P25 TalkGroup: $0001

021 Home-1 D146.1250Rn

P25 Call Unit #: 0000001
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

The TDFM-136 has two distinct RF modules (Main and a dedicated Guard receiver). Unit ID's are

set to default ID's of 1 for Main and 2 for Guard. The Unit ID is a user set number, not a factory ID,

so if they are to be used, then they need to be set. The command to set the Unit ID is command

L5-9, the UID (Main or Guard) to be set is determined by front panel switch positions. The screen

to edit these numbers appears as follows:

 Figure 2-14. The Set Unit ID edit screen.

The editor works as follows:

to Decimal mode: enter number, cursor automatically advances.

accept the entry and exit

abandon the entry and exit

The edit mode is decimal only seven digits 0000001 to 9999999. 

2.3 Scan and Multi-Mode Operation

The transceiver supports two modes of operation where it is able to receive signals on

more than the displayed main and guard memories. These modes are: scan and multimode operation. 

 2.3.1 Scan Operation

The radio supports a basic scan mode that operates on the Main channel only. The scan function

allows users to monitor up to 16 channels at a time. All memories must be a member of one, and

only one, scan list; each scan list can hold up to 16 memories. Each memory in a scan list can be

enabled for scan or disabled (see command L2-5).

To scan a particular list: the current Main channel memory must belong to that list, and must have

it's scan enabled. Under these conditions, when you press the scan button (5), the unit will scan.

Example: There are seven (7) memories assigned to scan list three, these are: 5, 6, 13, 15,

23, 34, and 51. Memories 6 and 15 have scan disabled, the rest have scan enabled.

If the user is on channel 6 or 15 and tries to start scan (command L1-5), there will be

an error message: “Error: Non-Scanned Chan” and nothing will happen. 

If the user is on any other channel in scan list three, then the five scan-enabled

channels in list three will be scanned. 

You can enable or disable scan for the displayed memory (for Main channel only) by using the

command L2-5.

You can affect the scan operational parameters by using command L3-5. This command allows

you to affect the following four (4) parameters:

• Revert Mode

• Reply Timer

• Monitor Timer

• Delay Timer

16 Technisonic Industries Ltd

5-9 Set Main Unit ID

Unit ID #: 0000001
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Revert Mode. The Revert Mode refers to whether the radio will, when keyed, transmit on

the currently selected memory channel, or on the last contacted memory channel. The radio will

only respond on the last contacted channel for a time determined by the Delay timer setting, once

the timer times-out, then the unit always transmits on the selected channel.

Default: last contacted

Reply Timer. The scan Reply time is the time that the radio will monitor a channel on which RF

was received, after all activity on the channel has ended (Rx or Tx). If there is further receive or

transmit activity on the channel, the timer will reset, and start again once the activity has ended.

When the timer times-out the unit will resume scan. If set to zero (0), the unit will resume scan

immediately upon the end of channel activity. 

Range: 0-20s, Default: 3 seconds

Monitor Timer. This is the time that the radio will monitor a channel on which RF was received,

before resuming scanning. Once the timer expires, the unit will break and resume scan, if the value

is set to zero (0) then the unit will monitor the signal as long as it is received.

Range: 1-90s, Default: 10 seconds

Delay Timer. The Delay time is the time that the radio will remain monitoring a channel after

receiving on that channel has ended. If the timer is set to zero, (0), then the unit will resume

scanning immediately after receive activity ends. This is the timer that affects the Revert Mode

'Contacted'.

Range: 0-15s, Default: 5 seconds

 2.3.2 Multi-Mode Operation

Multi-mode operation allows mixing of analog and digital operating modes on one frequency. In

effect, this mode allows one memory position to be set up as though it has multiple sets of

parameters associated with it. This manual will refer to this as 'shadow memory' operation: a

'primary' memory can have up to seven 'shadows' for a total of eight sets of operating parameters

(1 primary + 7 shadows). 

The user invokes this mode by selecting an existing memory to be a 'primary' and assigning at

least one 'shadow' memory to it, the command to do this is L2-7. Each 'shadow' takes up one

memory position, just like a normal memory.

The shadows have certain restrictions:

• a shadow must have the same frequency as the primary

• a shadow cannot have scan enabled

• a shadow cannot transmit in digital ID call (i) mode

You can mix analog and digital Operating Modes, you can configure different shadows to have

different squelch parameters.

Shadow operation is much like scan in last contacted mode, once a signal has been received, the

user has a set amount of time to key the radio, the unit will transmit with the parameters of the

shadow that decoded the signal: in other words you will respond to the person who called you.

When mixing analog noise squelch with analog selective squelches, the noise squelch shadow will

delay decode for a short time to allow the selective squelch channels time to decode, if none of the

selective squelch channels decode a valid signal, then squelch is broken on the noise squelch

channel.

The radio will operate in Mixed Mode when the Main channel has any memory in the shadow group

selected (ie either Primary or any shadow). The only difference between selections is that if the

user keys the radio, other than to respond to a received transmission, then the radio will transmit

using the displayed parameters.

Technisonic Industries Ltd. 17
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Primary memories with shadows are identified with a large diamond in the 4th character position:

Figure 2-15. Identifying Graphic for Primary Channel with Shadows

Shadow memories are identified with a small diamond in the 4th character position:

Figure 2-16. Identifying Graphic for Shadow Channel

2.4 Controlling User Access

Whether to restrict operation to correct modes, or to help avoid mis-configuration in the

field, it may be advantageous to control user access to certain features. The transceiver

supports controlling access to features in different ways, these include:

1. Controlling access to command levels.

2. Controlling access to individual commands via command permissions.

3. Controlling access to squelch modes.

4. Controlling editing of specific memories.

5. Controlling display of frequency information.

 2.4.1 Control Access to Command Levels

The most basic access control is provided by the built in restriction of access to Maintenance and

Supervisor level commands (L4 and L5 respectively). Maintaining this access security is crucial for

any subsequent access control, as those methods are all accessed via commands on the L4 and

L5 programming levels. Access to these command levels is gained on one of two ways:

Access via Jumper requires that a hardware jumper (shunt) be placed across two pins inside the

transceiver. Obviously the transceiver must be opened on a bench to use this method. See

appendix A for side panel removal instructions and jumper placement.

Access via Jumper and Passwords is the default condition. When configured like this the

transceiver does not need to be opened to access the restricted command levels. There are two

passwords: one for level 4 (Maintenance), and one for level 5 (supervisor).

Passwords are eight characters long and have the full range of characters available for text edit

(see L2-6 for character list reference).

When attempting to enter the Maintenance Level (L4) you will be prompted for a password, upon

correct entry of the L4 password, you will be granted access to that level 

When attempting to enter the Supervisor Level (L5) you will be prompted for a password, upon

correct entry of the L5 password, you will be granted access to that level.

If the Supervisor password is entered when attempting to access the Maintenance level, then

access to both Maintenance and Supervisor Levels is granted. 

18 Technisonic Industries Ltd

001 ̈Main w136.0000Rx

GD1 Forestry n156.5000Rt

011©Main-1 n136.0000Rt

GD1 Forestry n156.5000Rt
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

The screen to enter a password upon trying to access L4 or L5 looks like:

Figure 2-17. The screen to enter a password for restricted level access.

Passwords can use any character supported by the standard TDFM-136 text editor, as such the

editing keys are the same:

Step through the available edit groups (A-Z, a-z, 0-9, + extra characters – see table 4.3)

step up/down through the characters in each edit group

move backward/forward through the available characters

accept the entry and exit

abandon the entry and exit

Setting Passwords is done via command L5-7, the command is fixed to edit the Maintenance

password followed by the Supervisor password. Passwords must be eight characters.

Figure 2-18. The screen to set the Maintenance password.

The editor works the same as for entering the password, except that if you are editing the

Maintenance password 'ESC' and 'ENTER' work as follows:

accept the entry and continue to Supervisor

abandon the entry and continue to Supervisor

When entering the Supervisor password screen 'ESC' and 'ENTER' work as in other editors: 

accept the entry and exit

abandon the entry and exit

 2.4.2 Set Command Permissions

Command permissions allow those responsible for setting policy to select which commands in the

command set will be accessible in the Operator Levels (levels 1, 2, and 3). All the commands in

those three levels are affected EXCEPT: ‘PROG’ (0) and ‘ESC’ (*). 

Table 2-3 below indicates all the available user commands, and shows the permission mode as

follows:

● indicates a command that has a distinct permission

● indicates a command is available in Guard, but permission is controlled by Main.

X indicates a command that is NOT available for the channel.

Technisonic Industries Ltd. 19

Edit Maint Pass: 

Edit Text (|~{}3,#*) 09

Enter Password: 

Edit Text (|~{}3,#*) 09
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Table 2-3. Permission Applicability by Command and Level

Cmnd

Num

Level 1 Level 2 Level 3

Command M G Command M G Command M G

1 Select Main Memory ● ● Create/ProgAll ● ● Set Main Boot Memory ● ●

2 Display Brighter ● ● Copy Guard to Main ● ● Assign Key by KeyTag ● ●

3 Edit Operating Mode ● ● Lock Keypad ● ● Set Edit HEX/Decimal ● ●

4 Scroll Memory Down ● ● not used X X Show Firmware Version ● ●

5 Scan ● X Edit Scan List ● X Set Scan Parameters ● ●

6 Scroll Memory Up ● ● Edit Text ● ● Set PTT Timer ● ●

7 Edit Frequency ● ● Create Shadow ● X Set sidetone level ● ●

8 Display Dimmer ● ● Copy Main to Guard ● ● Communicate with PC ● ●

9 Edit Squelch Mode ● ● Encryption ON/OFF ● ● Show Squelch ● ●

ENT Jump to Home Memory ● X Set Home Memory ● ● not used X X

The default configuration from the factory has all commands enabled, except L2-2 and L2-8.

Permissions are controlled via three screens that allow you to visually enable or disable each

command for Main and Guard on a level by level basis.

The Set Permissions screen shows the level being affected (L1, L2, or L3), followed by the

command number, and an optional 'g' indicating Guard channel operation for that command (if

applicable). The character directly under each number (or 'g') indicates whether or not the

command may be accessed. If the command is to be accessible (or enabled), then the character is

a is solid round dot, if the command is to be restricted, (or disabled), then the character is an empty

dot or donut. The ‘Set Permissions’ for command level 1 screen appears below:

Figure 2-19. The Screen to Edit the Level 1 Permissions

The user may edit the permissions as follows:

Toggle permission ( ¥ = enabled, ¤ = disabled

step up/down through Operator Levels

move backward/forward through the available commands

accept the entry and exit

abandon the entry and exit

Note that the cursor will automatically jump to the next valid column, the cursor will wrap. The ‘g’

indicates a separate Guard option; for the commands that support this, the Main and Guard can be

enabled/disabled separately. In addition, some of the commands are either channel agnostic, or

specific to the Main channel only and can thus be invoked for Main even when the radio front panel

switches are in the Guard position. 

For example: with the switches in the Guard position the user can still scroll through the Main

memories using the and keys. These types of commands are available in the Guard

mode, but the permissions are determined by the Main permission. 

20 Technisonic Industries Ltd

L1:1 2 3g4 5 6 7g8 9gA

 ¥ ¥ ¥¥¥ ¥ ¥ ¥¥¥ ¥¥¥
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 2.4.3 Control Access to Squelch Modes

The squelch modes are among the more complicated editing and configuring options; the system

supports an access control scheme that allows you to enable access only to modes that your

organization or specific mission needs. 

Command L4-9 is used to restrict user access to squelch modes, editing, and select options, this

can be used to simplify operation and reduces the potential to mis-configure the system. The

access restrictions operate according to the following table:

Table 2-4. Squelch Mode Restrictions

Keys Mode Select Edit Value Select

Analog Digital Analog Analog

← → Rx Tx Rx Tx Mode Tones Codes

↑

↓

NAC Noise Enable /

Disable

individual

Tones. 

See table

Appendix C

Enable /

Disable

individual

Codes. 

See table

Appendix C

Tone Tone TalkGroup Tone

Code Code ID Call Code

Inhibit Inhibit

Upon start, the display appears as follows:

Figure 2-20. The Screen showing Mode Select restrictions for Analog Receive.

The user may edit the permissions as follows:

Toggle permission ( ¥ = enabled, ¤ = disabled

move backward/forward through the restriction screens ( ← → select column in table)

step up/down through column entries ( ↑ ↓ select row in table)

accept the entry and exit

abandon the entry and exit

Note you may only restrict editing of a selected value in analog modes. 

 2.4.4 Control Editing of Memories

In some cases it may be advantageous to set up a memory, and then ensure that the configuration

of that memory cannot be changed by the user. Command 4-4 provides this function. The

currently selected channel memory - as determined by the front panel switch positions -may be

enabled or disabled for editing. The command screen appears as follows:

Figure 2-21. The screen for Enabling/Disabling edit of a specific Memory.

Technisonic Industries Ltd. 21

Squelch Restrict: Select

Analog Rx: Tone ¥

4-4 Set Memory Edit

Mem: 022 Edit Disable
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

The user may change the edit permission for the selected memory as follows:

toggle enable/disable of selected memory

accept the entry and exit

abandon the entry and exit

Note, once a channel has been disabled for editing, any attempt to call a function that would edit a

parameter of the channel would display an error as shown below:

Figure 2-22. The error screen on trying to edit a disabled memory.

Remember that all the channel functions work as normal, they just cannot be changed.

 2.4.5 Control Display of Frequency Information

Some agencies may want to restrict access to displayed frequency information for the memories

on Main and/or Guard channels. Command 4-7 provides this function. The currently selected

channel memory - as determined by the front panel switch positions -may be enabled or disabled

for editing. The command screen appears as follows:

Figure 2-23. The Frequency Display Enable/Disable screen.

The user may change the frequency display for the selected memory as follows:

toggle enable/disable displaying frequency for the selected memory

accept the entry and exit

abandon the entry and exit

Note, once a channel has had it's frequency display disabled, you cannot edit that frequency, an

attempt to do so will cause an error as shown below:

Figure 2-24. A memory with frequency display disabled.

Remember that all the channel functions work as normal, it is just that the frequency is not

displayed.

22 Technisonic Industries Ltd

022 Eesc 1 D155.2500Rm

 Edit Disabled

4-7 Set Freq Display

Mem: 022 Display Disable

022 Eesc 1 D--------Rm

 Edit Disabled
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

2.5 Encrypted Operation

The TDFM-136 supports encrypted operation using both DES OFB and AES encryption

keys for P25 communications. The sequence to use encryption is as follows:

1. Load keys using a KVL keyloader.

2. Assign a KeyTag (name) to a key, defined by its SLN.

3. Assign a key, via the KeyTag to a memory.

4. Enable or disable use of encryption in radio operation.

 2.5.1 Loading Encryption Keys

In order to use the encryption feature on the transceiver, you must have encryption keys loaded

into the unit. The keys must be loaded into the unit using a KVL-3000+ keyloader. Of course the

keys must have been created in the KVL first. Operating instructions for the KVL are beyond the

scope of this document, see manufacturer documentation.

Note: The keyloader (KVL) must be connected to the transceiver with the correct cable: ensure

you only use a cable designed for use with the TDFM-136.

Once you have a KVL with the correct keys loaded, follow this procedure to load and use them in

the transceiver:

1. Connect the KVL to the TDFM-136 via the correct cable.

2. Load the keys following the KVL procedure. The keys will load to the Main or Guard

module as determined by the front panel switches.

3. Once you have loaded one module, you must load the same keys in the same order into

the other module. This is because the Guard operation is split across the two hardware

modules.

 2.5.2 Assign KeyTag to Encryption Keys

Once the keys have been loaded, you need to assign a name (referred to here as a KeyTag) to the

key so that they can be manipulated later. Initially, the key will be identified by it's SLN (sometimes

called CKR).

Command L4-8 allows you to set the KeyTag for any of the keys loaded into the radio following this

sequence:

1. Select the key, by SLN, to assign a KeyTag to.

2. Enter the KeyTag

3. Repeat for other SLN's if desired.

Select Key by SLN. The first screen, shown below, allows you to step through the available

keys (by SLN), and shows the encryption algorithm for that key.

 Figure 2- 25 . The screen to select the SLN to assign the KeyTag to.

Technisonic Industries Ltd. 23

Select Key SLN ({},#*)

SLN: 00001 ALG: DES
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

You can now select a key via it's SLN to assign a KeyTag to, using the following keys:

move backward/forward through the loaded keys, by SLN

accept the entry and continue

abandon the entry and exit

Create KeyTag for Selected Key. The next screen allows you to create a KeyTag for the

key selected. The system defaults to naming the KeyTags “Key Tag 01”, through “Key Tag 16”, this

screen allows you to change these names to suit your needs. 

The KeyTag is 10 characters and is limited to: Upper & lower case alphabetic, the digits 0-9, a

space, and {! “ # $ % & ' ( ) * + , - . /} not including the brace brackets.

The screen to edit the KeyTags looks like this:

 Figure 2- 26 . The screen to edit the KeyTag.

The keys for the KeyTag text editor operate as follows:

Step through the available edit groups (A-Z, a-z, 0-9, + extra characters – see table 3-4)

step up/down through the characters in each edit group

move backward/forward through the available characters

accept the entry and continue

abandon the entry and continue

Repeat or Exit. The final screen allows you to decide to loop back and repeat the process for

another key or to exit the editor entirely:

 Figure 2- 27 . The screen to assign another KeyTag or exit.

The edit keys are:

accept the entry and continue

abandon the entry and exit

 2.5.3 Assign Key by KeyTag to Memory

Once the keys have been loaded, and they have been given KeyTags, the user may now assign a

key, using KeyTags, to a memory, provided that the memory is in P25 digital mode. 

Command L3-2 allows you to assign a key to a memory in the transceiver following this sequence:

1. Select the memory to assign a Key to.

2. Assign the key via the KeyTag

3. Determine decrypt rules (assigned key or any key)

4. Repeat for other memories if desired.

24 Technisonic Industries Ltd

Edit Key Tag: Key Tag 01

SLN: 00001 (|~{}3,#*) AZ

Edit Key Tag: Key Tag 01

Another Key? #=ok *=exit
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Select Memory to Assign a Key to. The first screen, shown below, allows you to step

through the available memories. Note that only main memories have to be scrolled through, the

Guard memories are selectable from the front panel via the MN/GD and G1/G2 toggle switches.

This screen shows selecting a memory for the Main channel:

Figure 2-28. Select the Main memory to assign the key to

The user may select the memory to assign a key to as follows:

move backward/forward through the available memories (Main only)

accept the entry and continue

abandon the entry and exit

Select Key via KeyTag for Memory. The next screen, shown below, allows you to step

through the KeyTags and select one to be assigned to the selected memory.

Figure 2-29. Select the KeyTag to assign to the memory

The user may select the Key, via KeyTag, to assign to the previously selected memory as follows:

step up/down through the available KeyTags.

accept the entry and continue

abandon the entry and continue

Determine Decrypt Rules. The transceiver is capable of decrypting a received signal using

the key that has been assigned to the memory, or by using any key that has been loaded. The next

screen allows the user to make this choice. 

Figure 2-30. Select decrypt on Any Key or Assigned Key

Now you can make the 'Any Key' or 'Assigned Key' choice as follows:

toggle the choice: Any Key or Assigned Key

accept the entry and continue

abandon the entry and continue

Technisonic Industries Ltd. 25

3-2 Assign Key by KeyTag

Main Memory ({},#*):001

3-2 Assign Key by KeyTag

KeyTag(|~,#*):Key Tag 01

3-2 Assign Key by KeyTag

Set Rx Key: Any Key
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Repeat or Exit. The final screen allows you to decide to loop back and repeat the

process for another memory or to exit the editor entirely:

Figure 2-31. The screen to assign another key or exit

The edit keys are:

accept the entry and continue

abandon the entry and exit

 2.5.4 Enable/Disable Encrypted Operation

Now that keys have been loaded and assigned to various memories in the transceiver, you can

enable or disable encrypted operation. 

On a Digital memory, that has a key assigned to it, the Encryption may be enabled or disabled

using the command L2-9. The command is inherent, there is no edit, either the encryption can be

enabled or it cannot. If you try to enable encryption on an analog memory (unsupported), you will

see something like:

 Figure 2- 32 . The analog memory encryption error screen

On a Digital memory, that does not have a key assigned to it, you will see something like:

Figure 2-33. The error screen for no encryption key assigned

When correctly configured (a key assigned to a Digital memory), you will see a 'key' icon in front

of the mode indicator, similar to:

Figure 2-34. The Encryption Enabled for Main memory screen.

26 Technisonic Industries Ltd

3-2 Assign Key by KeyTag

Assign More? #=ok *=exit

101 Idsc n151.0000Rx

 No Analog Encryption

001 Main D139.1000Rm

 No SLN Assigned

022 Encr1 aD155.4250Rm

GD1 Guard1 n154.0000Rt
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

SECTION 3

COMMAND REFERENCE

This section provides a summary of the commands supported by the equipment, the Table

3-1 below shows a summary the commands divided into command levels. 

Table 3-1. Command Level Reference

Key Operator

Level 1

Operator

Level 2

Operator

Level 3

Maintenance

Level 4

Supervisor

Level 5

1 CHAN Select Main Memory Program New Memory Select Boot Memory Select Default Record Toggle RF Bias V

2 up Display – Brighter Copy Guard to Main Set Key by KeyTag Select Access Mode Scroll Test

3 MODE Edit Operating Mode Lock Keypad Select Edit Mode Set Cmnd Permissions n/u

4 back Scroll Memory Down n/u Show Code Rev Set Memory Edit Re-Set Data Base

5 SCAN Scan ON/OFF Edit Scan Select Scan Parameters n/u n/u

6 fwd Scroll Memory Up Edit Description Select PTT timer n/u Transparent Mode

7 FREQ Edit Frequency Create Shadow Chan Select Side tone Audio Set Freq Display Edit Passwords

8 down Display – Dimmer Copy Main to Guard PC Communications Set KeyTag for Keys Run Boot loader

9 SQL Edit Squelch Mode Set Encrypt ON/OFF Show Squelch Values Set SQL Permissions Set Unit ID

0 PROG Go to next level Go to next level Go to next level Go to next level n/u

# ENTER Toggle Home/Current Select Home Memory n/u n/u n/u

* ESC Toggle Talk Around Go to Previous level Go to Previous level Go to Previous level Go to Previous level

2+4+6 Emergency Erase Keys n/u n/u n/u n/u

NOTE: n/u indicates command keys that are not currently implemented.

Operator Levels:

Level 1 commands are a mix of operating and editing commands. 

Level 2 commands are a mix of operating, editing, and configuration commands.

Level 3 commands are configuration commands.

Restricted Levels:

Level 4 allows qualified personnel to configure access permissions for the radio. 

Level 5 allows qualified personnel to change core aspects of the transceiver operation

including erasing and updating the transceiver code.

NOTE: NEVER fly the radio with restricted levels accessible.

These command levels are for maintaining the transceiver only, they are not required for

operation in flight!

Technisonic Industries Ltd. 27
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

3.1 Operator Level 1 Commands

This section lists the commands available to the user in Level 1. The availability of the

commands is subject to the restrictions set by the Permissions policy (see section 2.5).

The commands are listed by increasing number.

 3.1.1 Select the Operating Memory for the Main Channel

Level 1 Key Scope: Main only

This command allows you to directly select the memory for the MAIN channel operation, the cursor

will appear at the first digit in the channel number as shown:

Figure 3-1. The User Screen to Enter a Memory Number

Now, select a number from 001 to 230, the cursor wraps. Valid edit keys are:

to Enter digit, cursor automatically advances and wraps

accept the entry and continue

abandon the entry and exit

Note: If the channel number selected is out of range then the cursor will remain until the user

enters a valid number. If there is no information programmed for the channel, the editor will

return to the previously displayed channel.

 3.1.2 Increase Display Brightness

Level 1 Key Scope: Main and Guard

Press and hold the up arrow (2) key to increase the brightness of the LED character display, it

stops when the key is released or at maximum, whichever occurs first.

 3.1.3 Edit Channel Operating Mode

Level 1 Key Scope: Main and Guard

This command will edit the Operating Mode of the selected channel. Upon selecting this command

the cursor will appear at the MODE position. 

Figure 3-2. The User Screen to Edit the Operating Mode

28 Technisonic Industries Ltd

001 Main D136.0000Rg

Edit Mode (|~3,#*)

000

Enter Number (0-9,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Edit Keys

step up through available operating modes (w, n, D)

step down through available operating modes (w, n, D)

accept the entry and exit

abandon the entry and exit

Table 3-2 Transceiver Operating Modes

Operating Mode Bandwidth Indicator

Analog Wide 25 kHz 'w'

Analog Narrow 12.5 kHz 'n'

P25 Digital 12.5 kHz 'D'

Note: If an Operating Mode is selected that is incompatible with the current Squelch Mode, then

the Squelch mode will automatically be changed to one that is acceptable for that

Operating Mode (ie >x' for analog, 'm' for Digital Rx and 'g' for Digital Tx).

 3.1.4 Scroll Backwards through Available Memories

Level 1 Key Scope: Main only

Press and hold the back arrow (4) key to scroll the memories for the Main Channel BACK, or down,

through the programmed memories until reaching the lowest memory programmed, it will then

wrap around and restart from the top. Once the user releases the button the displayed

characteristics will be programmed. The scroll speed will increase as the button is held.

 3.1.5 Start/Stop Scan

Level 1 Key Scope: Main only

This command allows the user to start and stop Scan operation, the system will scan the channels

that are in the same scan list that the currently displayed Main channel is a member of. Note that

the channels in the scan list must have scan enabled (see command L2-5) to be scanned. If the

scan has not been enabled for the memory, then the following screen appears:

Figure 3-3. Trying to start scan on a Channel with Scan disabled

If the channel has been enabled for scan the user will see the following screen:

Figure 3-4. Start scan on a Channel with Scan enabled

Once scan has started the scan list digit flashes to indicate that the unit is in SCAN mode. Also

note that the key level indicator position has the lock symbol, this indicates that all keypad keys are

disabled except for:

Technisonic Industries Ltd. 29

001Main D136.0000Rg

Error Non-Scanned Chan

001Main D136.0000Rg

GD1§Guard1 n154.0000Rt
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Edit Keys

Stop scan

change display brightness

Front panel switch operation is modified as well: operation of MN/GD or G1/G2 will terminate scan

and restore normal operation of keys and switches. The front panel Squelch button is disabled.

The HI/LO power switch is unaffected.

 3.1.6 Scroll Forwards through Available Memories

Level 1 Key Scope: Main only

Press and hold the forward arrow (6) key to scroll the Main Channel FOREWARD, or up, through

the programmed memories until reaching the highest memory programmed, it will then wrap

around and restart from the bottom. Once the user releases the button the displayed

characteristics will be programmed. The scroll speed will increase as the button is held.

 3.1.7 Edit Channel Operating Frequency

Level 1 Key Scope: Main and Guard

This command allows the user to edit the Operating Frequency of the selected channel. The

frequency will be edited in duplex mode: first Receive, then Transmit. Once the receive parameter

is entered, the 2nd last character in the display will switch from “R” to “T”, the user can now enter

the transmit value. Note that the receive value is automatically entered, so to get simplex

operation, simply accept this entry. The edit screen appears as follows:

 Figure 3-5. The User Screen to Edit the Main frequency

Upon start, the cursor appears at the second character in the Frequency field of the channel to be

edited. The user may now enter the desired operating frequency as follows: 

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

The editor will not accept a value outside the limits of 136.0000 MHz. to 174.0000 MHz. In addition

frequency selection is limited to 2.5 kHz increments and valid 6.25 kHz frequencies in all

Operating modes (see appendix N for valid 6.25kHz frequencies).

30 Technisonic Industries Ltd

001 Main w136.0000Rx

Edit Frequency (0-9,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.1.8 Decrease Display Brightness

Level 1 Key Scope: Main and Guard

Press and hold the down arrow (8) key to decrease the brightness of the LED character display, it

stops when the key is released or at minimum, whichever occurs first.

 3.1.9 Edit Channel Squelch Mode

Level 1 Key Scope: Main and Guard

Select the Squelch Mode for the active memory (determined by front panel switch positions), and

edit the value if applicable. Note that the scope of the command is subject to restrictions imposed

by the Squelch Permissions – see L4-3. Edit Squelch is a duplex command: Receive followed by

Transmit. At start the cursor appears at the Squelch Mode indicator position as follows:

 Figure 3-6 . Editing the Squelch Mode

Edit Keys

step up/down through available squelch modes.

accept the entry and exit

abandon the entry and exit

The available options are constrained by the operating mode as per table 3-3.

Table 3-3. Receive and Transmit Squelch Modes

Analog Digital

Rx Tx Rx Tx

Noise x CTCSS Tones t Monitor m TalkGroup + NAC g

CTCSS Tones t DCS Codes c NAC Only n ID Call i

DCS Code c Inhibit - TalkGroup + NAC g Inhibit -

Once the Squelch Mode has been selected, if applicable, the user will be allowed to edit the value

of the selected mode (subject to restrictions imposed by the Squelch Permissions – see L4-3). 

Analog - Noise Squelch Value 

Scope: receive only, range 0-16 ($0-$F)

If Noise (Rx) is chosen, the prompt line will display the current value for noise squelch level and

place the cursor on the first digit available for the user to edit:

 Figure 3-7 . Editing the Noise Squelch Value

Technisonic Industries Ltd. 31

001 Control w136.0000Rx

Edit Sql Mode (|~9,#*)

001 Control w136.0000Rx

Noise Level: 10
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

Analog - CTCSS Tone

Scope: receive & transmit, 42 tones (see appendix 4.2 )

If CTCSS Tones are chosen, the prompt line will display the current value for that tone:

 Figure 3-8 . Selecting the CTCSS Tone Value

Edit Keys

step up/down through available CTCSS tones

accept the entry and: continue if Rx, exit if Tx

abandon the entry and exit

Edit Analog - DCS Code

Scope: receive & transmit, 83 codes (see appendix 4.2 )

If DCS Codes are chosen, the prompt line will display the current value for that code:

 Figure 3-9 . Selecting the DCS Code Value

Edit Keys

step up/down through available CTCSS tones

accept the entry and: continue if Rx, exit if Tx

abandon the entry and exit

Edit P25 Digital - Talkgroup Value

Scope: receive and transmit, range 0-65535 ($0000-$FFFF)

If the P25 TalkGroup was chosen the, the prompt line will display the current TalkGroup value, the

cursor will be on the first digit:

 Figure 3-10 . Editing the P25 TalkGroup Value

32 Technisonic Industries Ltd

005 Holden n156.5000Rt

CTCSS Tone (|~,#*): 67.0

005 Holden n156.5000Rc

CTCSS Code (|~,#*): 23

005 Holden D156.5000Rg

P25 TalkGroup: 0001
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Edit Keys

hex edit: move cursor backward/forward through the digits

hex edit: step up/down through the hex digits (0-9, A-F)

to decimal edit: enter number, cursor automatically advances

accept the entry and continue to Edit NAC

abandon the entry and exit

Note: If P25 Talkgroup was chosen, the editor will drop into Edit NAC upon accepting the

Talkgroup value.

Edit P25 Digital - NAC Value

Scope: receive and transmit, range 0-4095 ($000-$FFF)

If the P25 NAC was chosen (or after entering the P25 TalkGroup) the prompt line will display the

current NAC value, with the cursor on the first digit:

Figure 3-11. Editing the P25 NAC Value

Edit Keys

hex edit: move cursor backward/forward through the digits

hex edit: step up/down through the hex digits (0-9, A-F)

to decimal mode: enter number, cursor automatically advances

accept the entry and: continue if Rx, exit if Tx

abandon the entry and exit

Edit P25 Digital - ID Call Value

Scope: transmit only, range 0-9,999,999 

If the P25 ID Call was chosen, the prompt line will display the current ID Call value. This

parameter may only be edited in decimal, as follows:

Figure 3-12. Editing the P25 ID Call Value

This transmit only mode allows the user to try to contact a specific radio by transmitting that radio's

user ID. If no radio has that ID then this will fail.

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and exit

abandon the entry and exit

Technisonic Industries Ltd. 33

005 Holden D156.5000Rg

P25 NAC: 001

005 Holden D156.5000Ti

P25 Call Unit #: 0000001
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.1.10 Command Level Up

Level 1 Key Scope: Main and Guard 

This key selects the next HIGHER Command Level, the Command Level is indicated by a

subscript digit in the 4th character position on the lower row of the display. 

 3.1.11 Toggle memory: current/home

Level 1 Key Scope: Main only

This key toggles the main channel display between whatever memory is currently selected, and the

designated 'home' memory. If no memory has been selected as 'home' then the unit defaults to

memory '001'.

 3.1.12 Toggle Talk Around

Level 1 Key Scope: Main and Guard

Talk around is the name given to the function that allows you to temporarily set a duplex memory to

use the receive parameters for transmit. Simplex channels are, of course, unaffected as the

receive and transmit parameters are already the same. The 'up arrow' character | will replace

the decimal point in the Frequency field to indicate Talk Around is active for the channel.

 3.1.13 Erase Encryption Keys

Level 1 Key + + Scope: Main and Guard

Press all three keys at the same time to bring up a screen that allows you to erase all the

encryption keys in the transceiver. This command is irreversible. You must re-load keys with a

key-loader in order to restore keys and hence encryption functionality.

 3.2 Operator Level 2 Commands

Access the Operator Level 2 Commands by pressing the “PROG” key from the

Operator Level 1 once. The Menu Level is indicated in the 4th character position on the

lower row of the display, this will indicate a subscript “2”. 

Note: the system is time limited in command levels above level 1. The system will

automatically return to level 1 if a command has not been selected in five (5)

seconds.

The Operator Command Level 2 maps the keys to provide a new set of functions for the

operator as shown in Table 3-1. Details of command operation are given below. 

34 Technisonic Industries Ltd
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.2.1 Create/Edit All Memory Parameters

Level 2 Key Scope: Main and (Guard)

This command allows the user to create a new memory position (for Main channel only) or to edit

all the parameters of an existing memory position (Main or Guard channels). 

The editor steps through the channel parameters in sequence from left to right across the screen.

The edit functions here match those used to edit an individual parameter; however, in this case

selecting the ENTER key accepts the data and proceeds to the next step, rather than exiting. Only

after the last step does selecting ENTER save the data and exit. The ESC key will abandon the

entire edit session at any point without changing an existing channel or creating a new one.

accept the entry and continue – exit only after all edits completed.

abandon the entry and exit

If editing a Guard memory (G1 or G2) then proceed to L2-1.3 as the memory for the Guard channel

is determined by front panel switches only, and scan is not supported for Guard.

L2-1.1. Entering a Memory Number (refer to L1-1 for details)

Upon selecting this command, the first step is to enter the number of the memory position that you

wish to Create or Edit, for Main Channel memories, the valid range is (001 to 230).

Once a number has been entered, the system checks to see if the memory location has already

been programmed, if so, then the existing data will be loaded; if the location has NOT been

previously programmed then the default template data will be loaded. In each case the user can

edit the channel parameters in the same way as shown in the following steps. 

L2-1.2. Enter a Scan List & Enabling/Disabling Scan (refer to L2-5 for details)

After entering a MEMORY number the cursor will move to the fourth (4th) position on the top line,

the default scan list is shown in subscript. If there is a bar over top of the character, this indicates

that scan is disabled for this memory, if there is no bar, then scan has been enabled. The 'PROG'

key (key 0 ) toggles the scan enabled/disabled state.

L2-1.3. Enter a Text Description (refer to L2-6 for details)

After SCAN, the cursor advances to the first position in the eight (8) character text description field,

the user may now edit the existing text as desired. The editor allows you to select all upper and

lower (A-Z, a-z) case alphabetic characters, the numbers from zero to nine (0-9), and a selection of

extra characters including the space.

L2-1.4. Enter an Operating Mode (refer to L1-3 for details)

After TEXT, the cursor advances on the one (1) character Operating Mode (Mode) field, this single

character represents the operation of the radio: analog wide, analog narrow, or digital.

L2-1.5. Enter a Frequency (refer to L1-7 for details)

After MODE, the cursor advances to the frequency parameter field, this is a seven (7) digit decimal

parameter, though the first digit is always one so the user cannot edit that digit. The frequency

Technisonic Industries Ltd. 35
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

parameter may be edited to any number between 136.0000 and 174.0000 in 2.5 kHz. steps. (ie

150.0025 is valid, 150.0046 is not), or frequencies in the 6.25kHz plan (see appendix D)

This is a duplex parameter, that is, the user has a chance to edit both the receive value followed by

the transmit value. Once the receive value has been accepted, pressing 'ENTER' again will accept

the same value for transmit. If you wish to have a different value for transmit, then enter it now,

otherwise accept the value for simplex.

L2-1.6. Enter the Squelch Parameters (refer to L1-9 for details)

After FREQUENCY, the cursor advances to the Squelch Mode field. A single character field shows

the Squelch Mode selected. This is a duplex parameter so a different mode can be chosen for

transmit than was chosen for receive. Note that the modes available will be restricted by the

Operating Mode (ie the modes available are different for analog and digital operation).

Once the user is finished and selects ‘ENTER’ then the newly edited channel parameters are

selected and displayed for the appropriate channel. This may take a moment as the information is

programmed into the appropriate RF module at this time as well.

 3.2.2 Copy Guard to Main

Level 2 Key Scope: Main only

Copy the currently displayed Guard information UP to the Main channel. This is irreversible, so be

sure you wish to do this. As a safety precaution this command is disabled from the factory. (see

Command Permissions L4-2).

 3.2.3 Lock Keypad

Level 2 Key Scope: Main and Guard

This command locks the keypad to prevent accidental change to parameters of the radio

unbeknownst to the operator. This will disable all keyboard functions (except keyboard unlock and

display luminance).

Edit Keys

Lock the keypad, display 'locked' until key release.

Unlock the keypad (after 2 seconds), display 'unlocked' until key release.

 3.2.4 L2-4 not used.

Level 2 Key Scope: Command unused.

 3.2.5 Edit Scan List & Enable/Disable Scan

Level 2 Key Scope: Main only

This command allows the user to select which SCAN LIST - if any - that the selected channel is

included in. The memory must be a member of one of the fifteen (15) scan lists that are supported.

In addition, it allows the user to select whether or not the scan is enabled for the current memory. 

The cursor will move to the fourth (4th) position on the top line, the default scan list is shown in

36 Technisonic Industries Ltd
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

subscript. If there is a bar over top of the character, this indicates that scan is disabled for this

memory, if there is no bar, then scan has been enabled.

Figure 3-13. The Screen to Enter a Scan List or Enable/Disable Scan

Edit Keys

step up through available scan lists

step down through available scan lists

toggle the scan enable / disable (bar = disabled)

accept the entry and exit

abandon the entry and exit

Note: If a scan list is full, it will NOT appear in the list. This includes the default list, if this 

happens, the unit will display the next higher available list, this will stop at list 15 and 

then loop back to list 1.

Figure 3-14. The Screen Showing Scan Enabled for this Memory

 3.2.6 Edit Memory Text Description

Level 2 Key Scope: Main and Guard

This command allows the user to edit the text description for the selected channel. There are four

groups of characters that may be used; upper case (A-Z), lower case (a-z), numbers (0-9), and 16

extra characters (shown in table 3-4 below). The user can change character groups at any time

and as many times as desired during a description edit session.

Figure 3-15. Editing the Text Description

Edit Keys

step through the four available edit groups (A-Z, a-z, 0-9, extra characters (see table 3-4)

step up/down through the characters in each edit group

move backward/forward through the available characters

accept the entry and exit

abandon the entry and exit

Technisonic Industries Ltd. 37

001Main w136.0000Rx

Edit Zone/Scan (|~0,#*)

001Main w136.0000Rx

Edit Zone/Scan (|~0,#*)

006 Desc w141.0000Rx

Edit Text (|~{}3,#*) AZ
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Note that the up/down arrow keys are scroll enabled, that is, if you hold them you will scroll through

the character set rather than having to press each time you want to advance.

Table 3-4. Extra Characters for Text Edit

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

! “ # $ % & ' ( ) * + , - . /

Note: the first character in the table is a blank space.

 3.2.7 Create Shadow Memory

Level 2 Key Scope: Main only

This command allows the user to create a shadow of an existing memory on the Main channel. To

do so there are two basic steps: select an existing memory as the Primary memory, and then

create a shadow memory of the primary. 

L2-7.1. Selecting a Primary Memory to Base the Shadow On

First, pick an existing memory to act as the primary, up to seven other memories can be linked to

this one as 'shadows'.

Figure 3-16. Entering a Primary Memory for the Shadow Channel

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

L2-7.2. Create a Shadow of the Primary Memory

To create a shadow memory, start by entering a number for the shadow memory:

Figure 3-17. Entering a Shadow Channel Memory Number

Enter a number for the shadow memory, do not select a number already in use:

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

38 Technisonic Industries Ltd

006 Primary Memory

Enter Number (0-9,#*)

006 Shadow Memory

Enter Number (0-9,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Assume that the user entered '061' as the desired shadow channel number. The radio will now

display the data from the chosen Primary channel:

Figure 3-18. Edit the Shadow Memory Parameter - Text

The user may now edit those data fields that are valid for a shadow channel. These are:

• Text Description

• Operating Mode

• Squelch Mode and associated value

The editor functions and keys are the same as for any of the independent editor operation, the

difference, as with Create New / Program All (L2-1), is that the ENTER key will advance to the next

editor until all valid fields have been entered, then the ENTER key accepts and exits.

Note that there are some parameters that cannot be edited:

• Frequency is fixed to that of the Primary channel

• Shadow channels cannot be scanned.

• Shadow channels cannot use the Digital Squelch Mode IDcall (i).

 3.2.8 Copy Main to Guard

Level 2 Key Scope: Main and Guard (disabled by default)

Copy the currently displayed Main information DOWN to the selected Guard channel. This is

irreversible, so be sure you wish to do this. As a safety precaution this command is disabled from

the factory. (see Command Permissions L4-2).

 3.2.9 Encryption ON/OFF

Level 2 Key Scope: Main and Guard

This command allows the user to turn Encryption ON or OFF providing that the current channel is a

digital channel with an encryption key assigned to it. If so, you will see something like:

Figure 3-19. The Encryption Enabled for Main.

 3.2.10 Command Level Up 

Level 2 Key Scope: Main and Guard

This key selects the next HIGHER Command Level, the Command Level is indicated by a

subscript digit in the 4th character position on the lower row of the display. 

Technisonic Industries Ltd. 39

006 Chan 6 D166.0000Rg

Edit Text (|~{}3,#*) AZ

022 Encr1 aD155.4250Rm

GD1 Guard1 n154.0000Rt
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.2.11 Command Level Down

Level 2 Key Scope: Main and Guard

This key selects the next LOWER Command Level, the command Level is indicated by a subscript

digit in the 4th character position on the lower row of the display. 

 3.2.12 Set Home Memory.

Level 2 Key Scope: Main only

This command allows you to directly select the home memory for the MAIN channel as shown:

Figure 3-20. Set the Main channel Home memory

Now, select a number from 001 to 230, the cursor wraps. Valid edit keys are:

to Enter digit, cursor automatically advances and wraps

accept the entry and continue

abandon the entry and exit

 3.3 Operator Level 3 Commands

The Level 3 commands allow the operator to configure many of the default parameters of

the radio. In addition, level 3 has the PC upload and download commands. 

 3.3.1 Select Boot Channel

Level 3 Key Scope: Main only

Select which memory that will be used for the Main Channel when the unit is turned on: the last

Selected memory, the last Programmed memory or the Home memory.

The default is: last Selected memory.

Figure 3-21. Selecting Main Channel Boot Memory

Edit Keys

 step up/down through available boot memory choices

 accept the entry and exit

 abandon the entry and exit

40 Technisonic Industries Ltd

3-1 Set Boot Memory

Boot On: Last Selected 

001 Set Home Memory

Enter Number (0-9,#*)
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.3.2 Assign Key by KeyTag

Level 3 Key Scope: Main only

This command allows the user to select a memory, and then assign a key, via the KeyTag, to that

memory.

First, step through available memories, and select one to assign a key to.

Figure 3-22. Selecting the Memory to Assign the Key to

Edit Keys

step up/down through available memories (Main only)

accept the entry and exit

abandon the entry and exit

Once a memory has been selected, then step through the available KeyTags and pick one to

assign to the selected memory.

Figure 3-23. Selecting the KeyTag to Assign to the Memory

Edit Keys

step up/down through available KeyTags.

accept the entry and exit

abandon the entry and exit

After assigning the key, set how the decrypt function is applied to receiving on this memory: by only

decrypting signals encrypted with the assigned key, or by decrypting if the received signal was

encrypted using any key currently loaded into the radio.

Figure 3-24. Selecting the decrypt option: Any Key or Assigned Key

Edit Keys

toggle Receive Key Option: Any Key / Selected Key.

accept the entry and exit

abandon the entry and exit

Technisonic Industries Ltd. 41

3-2 Assign Key by KeyTag

Main Memory ({},#*):001

3-2 Assign Key by KeyTag

KeyTag(|~,#*):Key Tag 01

3-2 Assign Key by KeyTag

Set Rx Key: Any Key
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Once the above screens have all been passed, then you are given the chance to assign another

key, or to exit.

Figure 3-25. Screen to Assign another key or exit

Edit Keys

assign another

exit

 3.3.3 Set Numeric Edit Mode: Decimal or Hexadecimal

Level 3 Key Scope: Main only

Select whether to edit the TalkGroup and the NAC numbers as Hexadecimal (Hex) or as Decimal

numbers. The other parameters are edited in decimal only. Note that 'HEX' is indicated by a

preceding dollar sign (ie $014 is hex 14 or 20 decimal).

Figure 3-26. Selecting Edit mode

Edit Keys

toggle Edit Mode Option: Hex / Decimal Edit.

accept the entry and exit

abandon the entry and exit

 3.3.4 Display Firmware Release and Version Information

Level 3 Key Scope: Main only

Display the current firmware release and version information for the various firmware objects in the

transceiver. This information is displayed on the bottom row as follows:

Figure 3-27. Showing the Code Release Information

Edit Keys

 Step through firmware information: Main, Bootloader, RF Main, and RF Guard.

exit

42 Technisonic Industries Ltd

3-2 Assign Key by KeyTag

Assign More? #=OK *=exit

3-3 Set Hex/Decimal Edit

Edit in: Hex

3-4 Show Code Versions

Main: 3.0.0/e
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.3.5 Edit Scan Parameters

Level 3 Key Scope: Main only

Edit the parameters that govern the SCAN operation. There are 4 (four) parameters that may be

configured: Revert Mode, Reply Timer, Monitor Timer, and Delay Timer. As with the Create/Edit All

command (L2-1), this command is sequential, allowing the user to move between parameters

using the enter key, at the last parameter, this key accepts all and exits.

L3-5.1. Setting the Revert Mode default: last contacted

The Revert Mode refers to whether the radio will, when keyed, transmit on the selected memory

channel, or on the last contacted memory channel. The radio will only respond on the last

contacted channel for a time determined by the Delay timer setting, once the timer times-out, then

the unit always transmits on the selected channel. The Revert Mode screen is as follows:

Figure 2-28. Select the Scan Revert Mode

Edit Keys

toggle the revert mode

accept the entry and exit

abandon the entry and exit

L3-5.2. Setting the Reply Timer Range: 0-20s, Default: 3 seconds

Set the scan Reply time. This is the time that the radio will monitor a channel on which RF was

received, after all activity on the channel has ended (Rx or Tx). If there is further receive or transmit

activity on the channel, the timer will reset, and start again once the activity has ended. When the

timer times-out the unit will resume scan. If set to zero (0), the unit will resume scan immediately

when channel activity ends. 

Figure 2-29. Set the Scan Reply Timer Value

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

Technisonic Industries Ltd. 43

3-5 Edit Scan Parameters

Revert Mode: Contacted

3-5 Edit Scan Parameters

Reply Timer: 03
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

L3-5.3. Setting the Monitor Timer Range: 1-90s, Default: 10 seconds

Next, set the scan Monitor time, this is the time that the radio will monitor a channel on which RF

was received, before resuming scanning. Once the timer expires, the unit will break and resume

scan, if the value is set to zero (0) then the unit will monitor the signal as long as it is received. 

Figure 3-30. Set the Scan Monitor Timer Value

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

L3-5.4. Setting the Delay Timer Range: 0-15s, Default: 5 seconds

The Delay time is the time that the radio will remain monitoring a channel after receiving on that

channel has ended. If the timer is set to zero, (0), then the unit will resume scanning immediately

after receive activity ends. This is the timer that affects the Revert Mode 'Contacted'.

Figure 3-31. Set the Scan Delay Timer Value

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

 3.3.6 Configure PTT Timer

Level 3 Key Scope: Main only

The PTT timer runs whenever the user holds PTT. The PTT timer duration may be set using this

command: scroll through the available selections: OFF, 30 seconds, 60 seconds and 90 seconds.

Figure 3-32. Set the PTT Timer Value

44 Technisonic Industries Ltd

3-5 Edit Scan Parameters

Monitor Timer: 10

3-5 Edit Scan Parameters

Delay Timer: 05

3-6 Set PTT Timer

Timer Set: 90 sec
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Edit Keys

Step up through PTT timer settings

Step down through PTT timer settings

accept the entry and exit

abandon the entry and exit

 3.3.7 Side Tone Audio Level Adjust

Level 3 Key Scope: Main only

This command allows the user to adjust the level of side tone, the range of adjustment is 0 to 85,

the default level is 35. The screen shows the currently selected level as shown:

 Figure 3-33. Set the Side tone Audio Level

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

 3.3.8 PC Data Upload/Download

Level 3 Key Scope: Main only

This command allows a user to exchange TDFM-136 channel memory files (records) between a

PC and the transceiver. The unit must be connected to a PC running Windows 95, 98, NT 4.0,

2000, XP, or Win7 and the TiL TDP-136 Radio Communication Software package. When in this

mode, the communication is controlled by the PC software. The transceiver will wait for 25 seconds

to receive a valid record before timing out. The radio will indicate which memory is being

transferred, and when the transfer is complete.

Figure 3-34. Upload/Download Memory Data to/from the PC

If the transceiver has to swap memory space during the download, the activity will be displayed on

the front panel and the download will be completed after a SWAP and ERASE cycle is finished.

There is one user key function:

abandon PC communications mode

Technisonic Industries Ltd. 45

Communicate with PC

Ready

3-7 Set Sidetone Audio

Audio Level: (0-85): 22
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.3.9 Display Channel Squelch Parameters

Level 3 Key Scope: Main and Guard

Display the Squelch parameters for the currently selected channel. The data are displayed as

follows:

Figure 3-35. Display of the Receive Squelch Parameter Values

When displaying the receive parameters, the noise squelch level appears beneath the “Rx” that

starts the line, this space is blank in the transmit parameters display:

Figure 3-36. Display of the Transmit Squelch Parameter Values

Edit Keys

toggle the squelch parameter display between receive (Rx) and transmit (Tx)

exit

 3.3.10 Command Level Up 

Level 3 Key Scope: Main and Guard

This key selects the next HIGHER Command Level, the Command Level is indicated by a

subscript digit in the 4th character position on the lower row of the display.

 3.3.11 Command Level Down

Level 3 Key Scope: Main and Guard

This key selects the next LOWER Command Level, the command Level is indicated by a subscript

digit in the 4th character position on the lower row of the display. See section 2.1 above.

 3.3.12 Unused

Level 3 Key Scope: 

46 Technisonic Industries Ltd

Rx: Tone Code TalkG NAC

 A 167.0 23 $0001$293

Tx: Tone Code TalkG NAC

 167.0 23 $0001$293
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.4 Maintenance Commands (Level 4)

The Maintenance Command Level is a restricted command level; that is, access to these

commands is restricted to authorized personnel. This restriction is enforced by requiring

either a password or requiring that a shunt be placed on a specific set of jumper pins on the

MCU board of the radio. 

The Maintenance Commands available allow authorized personnel to set policy for the

radio use, by granting or restricting access to system commands and features.

This command level does not preserve the Normal Operating display characteristics, that

is: the Main and Guard displays are replaced by suitable command prompt information. 

 3.4.1 Set Default Record

Level 4 Key Scope: Main and Guard

This command allows the user to set up the default record that is used when a user selects Create

New/ Edit All (L2-1). This allows you to determine what parameters you wish to have as system

defaults. Some of the parameters are subject to restrictions set out in L4-9. 

NOTE: If these values are set first, and the restrictions are set after, it is possible for the

user to end up using a parameter that you wish to restrict!

The Default Record editor works just like the Create New/ Edit All command (L2-1) except that it

takes you through all the possible squelch combinations so that each selection can be edited.

Table 3-5 shows the parameters that may be edited, and their default values.

Table 3-5. The Channel Template Factory Defaults

Parameter Value

Basic

Scan List 1

Text Description “Desc “

Operating Mode w

Receive

Rx Frequency 141.0000

Rx Squelch Mode x

Rx Squelch TalkGroup Value $0001

Rx Squelch Tone Value 67.0

Rx Squelch Code Value 23

Rx NAC Value $293

Transmit

Tx Frequency 141.0000

Tx Squelch Mode x

Tx Squelch TalkGroup Value $0001

Tx Squelch Tone Value 67.0

Tx Squelch Code Value 23

Tx NAC Value $293

Tx ID Call Value 0000001

Technisonic Industries Ltd. 47
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.4.2 Set Restricted Level Access Mode

Level 4 Key Scope: Main and Guard

Select the method to access the restricted command levels. The choices are

Figure 3-37. Select the Access Mode from a list.

 3.4.3 Set Command Permissions

Level 4 Key Scope: Main and Guard

Select which commands in the command set will be accessible in the Operator Levels (levels 1, 2,

and 3). All the commands in those three levels are affected EXCEPT: ‘PROG’ (0) and ‘ESC’ (*). 

The default configuration from the factory has all commands enabled, except L2-2 and L2-8.

The Set Permissions screen shows the level being affected (L1, L2, or L3), followed by the

command number, and an optional 'g' indicating Guard channel operation for that command (if

applicable). The character directly under each number (or associated 'g') indicates whether or not

the command may be accessed. If the command is to be accessible (or enabled), the character is

a is solid round dot; if the command is to be restricted, (or disabled), the character displayed is an

empty dot or donut. The ‘Set Permissions’ for command level 1 screen appears as below: 

Figure 3-38. Edit the Level 1 Permissions

Edit Keys

Toggle permission ( ¥ = enabled, ¤ = disabled

step up/down through Operator Levels

move backward/forward through the available commands

accept the entry and exit

abandon the entry and exit

Figure 2-39. Edit the Level 2 Permissions

Figure 3-40. Edit the Level 3 Permissions

48 Technisonic Industries Ltd

1:1 2 3g4 5 6 7g8 9g*g#

 ¥ ¥ ¥¥¥ ¥ ¥ ¥¥¥ ¥¥¥¤¥

2:1g2 3 4 5 6g7 8 9g #

 ¥¥¤ ¥ ¥ ¥ ¥ ¥ ¤ ¥¥ ¥

3:1 2 3 4 5 6 7 8 9 

 ¥ ¥ ¥ ¥ ¥ ¥ ¥ ¥ ¥ 

4-2 Set Access Mode

Mode: Jumper/Password
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

The cursor will automatically jump to the next valid column and will wrap. The ‘g’ indicates a

separate Guard option, for the commands that support this, the Main and Guard can be

enabled/disabled separately. Some of the commands are channel agnostic, or specific to the Main

channel only, these can be invoked for Main even when the radio front panel switches are in the

Guard position. 

For example: with the switches in the Guard position the user can still scroll through the Main

memories using the and keys. The table below indicates all the available user

commands, and shows the permission mode as follows:

● shows a command that has a distinct permission

● shows a command that is available in Guard, but permission is controlled by Main.

X shows a command that is NOT available for the channel.

Table 3-6. Permission Applicability wrt Command Levels

Cmnd

Num

Level 1 Level 2 Level 3

Command M G Command M G Command M G

1 Select MN Memory ● ● Create/Prog All ● ●

Set Main Boot Memory ● ●

2 Brighter ● ● Copy GD to Main ● ●

Upload to PC ● ●

3 Edit Op Mode ● ● Lock Keypad ● ●

Set Hex/Decimal ● ●

4 Scroll MN Memory Down ● ● Not Used Show Version ● ●

5 Scan ● X Edit Scan List ● X Edit Scan Params ● ●

6 Scroll MN Memory Up ● ● Edit Text ● ●

Set PTT Timer ● ●

7 Edit Frequency ● ● Create Shadow ● X Set Sidetone Level ● ●

8 Dimmer ● ● Copy Main to GD ● ●

Download from PC ● ●

9 Edit Squelch ● ● Edit Unit ID ● ●

Show Squelch ● ●

* Toggle Talk Around ● ● reserved reserved

# Toggle Home Memory ● X Select Home Memory ● X Not Used

 3.4.4 Set Memory Edit

Level 4 Key Scope: Main and Guard

Individually enable/disable a memory for editing. If disabled then the memory cannot be edited by

any operator level command.

Figure 3-41. The screen for Enabling/Disabling edit of a specific Memory.

Edit Keys

toggle enable/disable of selected memory

accept the entry and exit

abandon the entry and exit

If an attempt is made to edit a disabled memory the error: “Edit Disabled” is displayed on the prompt line.

Technisonic Industries Ltd. 49

4-4 Set Memory Edit

Mem: 022 Edit Disable
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.4.5 L4-5. not used

Level 4 Key Scope: 

There is no command implemented at this location.

 3.4.6 L4-6. not used

Level 4 Key Scope: unused

There is no command implemented at this location.

 3.4.7 Set Frequency Display

Level 4 Key Scope: 

Individually enable/disable a memories' frequency display. If disabled, the memory position will not

display a frequency. In addition the frequency cannot be edited.

Figure 3-42. The Frequency Display Enable/Disable screen.

The user may change the frequency display for the selected memory as follows:

toggle enable/disable displaying frequency for the selected memory

accept the entry and exit

abandon the entry and exit

Note, once a channel has had it's frequency display disabled, you cannot edit that frequency, an

attempt to do so will cause an error as shown below:

Figure 3-43. A memory with frequency display disabled.

 3.4.8 Assign KeyTags to Encryption Keys 

Level 4 Key Scope: Main and Guard

Assign a KeyTag to the encryption keys loaded into the radio by following this sequence:

1. Select the key, by SLN, to assign a KeyTag to.

2. Enter the KeyTag

3. Repeat for other keys if desired.

50 Technisonic Industries Ltd

4-7 Set Freq Display

Mem: 022 Display Disable

022 Eesc 1 D--------Rm

 Edit Disabled
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

L4-8.1 Select Key by SLN. Use this screen to step through the available keys (by SLN).

The encryption algorithm for the key is indicated as well.

Figure 3-44. Step through available keys by SLN.

Edit Keys

move backward/forward through the loaded keys, by SLN

accept the entry and continue

abandon the entry and exit

L4-8.2 Edit the KeyTag for the Selected Key. The system automatically creates

KeyTags named: “Key Tag 01”, through “Key Tag 16”. This screen allows you to change these

names to suit your needs. 

The KeyTag is 10 characters and is limited to: Upper & lower case alphabetic, the digits 0-9, a

space, and {! “ # $ % & ' ( ) * + , - . /} not including the brace brackets.

Figure 3-45. The screen to edit the KeyTag.

Edit Keys

Step through the available edit groups (A-Z, a-z, 0-9, + extra characters – see table 3-4)

step up/down through the characters in each edit group

move backward/forward through the available characters

accept the entry and continue

abandon the entry and continue

L4-8.3 Repeat or Exit. When done, you may to loop back and repeat the process for another

key or to exit the editor entirely:

Figure 3-46. The screen to assign another KeyTag or exit.

Edit Keys

accept the entry and continue

abandon the entry and exit

Technisonic Industries Ltd. 51

Select Key SLN ({},#*)

SLN: 00001 ALG: DES

Edit Key Tag: Key Tag 01

SLN: 00001 (|~{}3,#*) AZ

Edit Key Tag: Key Tag 01

Another Key? #=ok *=exit
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.4.9 Set Squelch Restrictions

Level 4 Key Scope: Main and Guard

You may restrict user access to the Squelch modes. The restricting hierarchy is as follows:

• squelch mode select restrict – limit which squelch modes may be selected.

• squelch mode edit restrict – limit which squelch modes the user may edit the value of

• squelch mode value restrict - limit the range of values for available in a squelch mode

These features are described in the sections below. The editor operates as follows:

Edit Keys

move backward/forward through the restriction screens

step up/down through the parameters for each screen

Toggle the state of the displayed parameter: enabled ¥ / disabled ¤

accept the entry and exit

abandon the entry and exit

L4-9.1. Restricting the Squelch Modes Available to Select

You can restrict the Squelch Modes that the user can select for each of Analog Rx, Analog Tx,

Digital Rx, and Digital Tx operation. Note that not all Squelch Modes can be restricted, table 2-8

below shows the available Squelch Mode for each Operating Mode and shows which can be

restricted.

Table 3-7 Squelch Modes that can be Restricted

Analog Rx Analog Tx Digital Rx Digital Tx

Tone Tone NAC IDcall

Code Code Talkgroup Inhibit

Inhibit

The screen shown below is an example of the screens that allow you to restrict which Squelch

Modes appear for the user to select when editing Squelch Modes (L1-9, or in L2-1, or L2-7).

Figure 3-47. The Screen to Set Available Squelch Modes for Analog Receive

Here, the user can restrict the individual Squelch Modes that will appear to the user in the Analog

Squelch mode selector for receive, the same can be done for analog transmit. 

L4-9.2. Restrict Editing of a Squelch Mode Value

This screen allows you to restrict which Squelch Modes can have their values edited by the user, a

restriction here will still allow the mode to be selected for use, but the value cannot be changed.

Example: if Noise mode is disabled here, then the user can select Noise (for analog Rx operation),

but cannot change the Noise Squelch level.

52 Technisonic Industries Ltd

Squelch Restrict: Edit

Value Edit: Noise ¥
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

Figure 3-48. The Screen to Restrict Editing of the Noise Squelch Value

L4-9.3. Restricting the CTCSS Tone and DCS Code Values

The list of both CTCSS Tones and DCS Codes that are available to the user in the related Squelch

Mode editor can be restricted so that only certain Tones and/or Codes are available to the user

during the edit session. 

The CTCSS Tone value restrict screen appears as below, here, you can step through the list of all

the CTCSS Tones, and restrict individual tone values from appearing to the user in the CTCSS

Tone selection list. 

Figure 3-49. The Screen to Restrict Available CTCSS Tones

The DCS Code value restrict screen appears as below, here, you can step through the list of all the

DCS Codes, and restrict individual code values from appearing to the user in the DCS Code

selection list. 

Figure 3-50. Restrict Available DCS Codes

CTCSS Tone or DCS Code entries restricted here will not appear to the user when they are making

a selection.

 3.4.10 Command Level Up

Level 4 Key Scope: Main and Guard

Command level navigation: step up one command level. 

 3.4.11 Command Level Down

Level 4 Key Scope: Main and Guard

Command level navigation: step down one command level. 

 3.4.12 Unused

Level 4 Key Scope: Main and Guard

Technisonic Industries Ltd. 53

Squelch Restrict: Edit

Value Edit: Noise ¥

Squelch Restrict: Value

CTCSS Tone: 67.0 ¥

Squelch Restrict: Value

DCS Code: 23 ¥
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.5 Supervisor Commands (Level 5)

The supervisor Command Level is available to perform a variety of configuration, testing and

tuning functions.

All the functions described in this section are for trained personnel only. If you do not have training

on the use of these commands, leave level 5 by pressing the 'ESC' key.

 3.5.1 Toggle RF Bias Voltage

Level 5 Key Scope: Main and Guard

This command forces the bias voltage onto the RF transistor on the RF amplifier board. This is

used for factory testing there is no field use for this command. 

Figure 3-51. RF Bias Test

There is no screen change or indication of mode – factory use only.

 3.5.2 Scroll Test

Level 5 Key Scope: Main only.

This command allows you to test communication between the local MCU and the Main RF module.

In this mode the unit will sequentially advances through all the memories on the main channel, and

keep a count of successful loops. It will do so until any key is pressed. The start screen looks like:

Figure 3-52. Main Channel Memory Loop Test - Start Screen

Once started, the screen looks similar to:

Figure 3-53. Main Channel Memory Loop Test - Running

When the test is running, pressing any key will stop the loop test and exit.

 3.5.3 L5-3 Unused

Level 5 Key Scope: 

There is no command implemented at this location.

54 Technisonic Industries Ltd

023 Chan 023 w147.8950Rc

Successful Loops: 000036

5-1 RF Bias Test

Bias for (|~1,#*):

5-2 Memory Scroll Test

#=Start, *=Exit
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.5.4 Re-Set Database to Factory Defaults

Level 5 Key Scope: Main and Guard

This command allows you to reset the unit to as shipped from factory. 

Note: this will erase all your programmed memories – you will lose all information you have loaded!

The Re-Set Database screen looks as follows:

Figure 3-54. Erase and Re-Program to Factory Defaults

Edit Keys

accept and erase all data and re-configure the unit

abandon without changing

 3.5.5 Unused

Level 5 Key Scope: 

There is no command implemented at this location.

 3.5.6 Transparent Mode

Level 5 Key Scope: Main and Guard

This command allows you to communicate directly with the RF modules.

Figure 3-55. Transparent Mode

The keys used to operate Transparent Mode are:

step up through available choices (main, guard, off)

step down through available choices

exit mode

exit mode

Technisonic Industries Ltd. 55

5-4 Reset to Defaults

Erase&Reboot? #=Yes,*=No

5-6 Transparent Mode:

OFF
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

 3.5.7 Edit Passwords

Level 5 Key Scope: Main and Guard

Edit the passwords for access to the restricted command levels. The passwords are edited in

sequence: Maintenance (L4) first followed by Supervisor (L5). Each password is eight characters

long, and may be any of: Upper & lower case alphabetic, the digits 0-9, a space, and {! “ # $ % & ' (

) * + , - . /} not including the brace brackets.

Figure 3-56. Edit Maintenance Password

Edit Keys

Step through the available edit groups (A-Z, a-z, 0-9, + extra characters – see table 3-?)

step up/down through the characters in each edit group

move backward/forward through the available characters

accept the entry and continue

abandon the entry and continue

Once the Maintenance password has been entered you will automatically advance to the screen to

edit the Supervisor password.

Figure 3-57. Edit Supervisor Password

The editing keys are the same as for the Maintenance password.

 3.5.8 Run Bootloader

Level 5 Key Scope: Main and Guard

This command allows you to run the Bootloader in order to load new operating code. Note that the

Bootloader is a separate piece of code and does not run under the radio code, so once started, the

control is handed to the Bootloader. See Bootloader operating instructions.

Bootloader operation is for trained personnel only. 

To use the bootloader you must have the unit attached to a correctly configured PC.

You can erase all information in the radio using the bootloader.

The Bootloader screen will look similar to this:

Figure 3-58. The Bootloader Screen

56 Technisonic Industries Ltd

Edit Maint Pass:

Edit Text (|~{}3,#*) 09

Edit Super Pass:

Edit Text (|~{}3,#*) 09

 TDFM-136 Bootloader

 Version: 3.0.2
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

 3.5.9 Set Unit ID (UID)

Level 5 Key Scope: Main and Guard

This command allows you to change the Unit ID number for both the Main and the Guard RF

modules depending on the front panel switch position. The UID is a seven digit decimal number in

the range 0000001 to 9,999,999. Note that leading zeros must be entered. The edit screen

appears as follows:

Figure 3-59. Set Unit ID Number (screen for Main shown)

The keys used to edit the UID parameter are:

Edit Keys

to decimal mode: enter number, cursor automatically advances

accept the entry and continue

abandon the entry and exit

 3.5.10 L5-0 Unused

Level 5 Key Scope: 

There is no command implemented at this location.

 3.5.11 Command Level Down

Level 5 Key Scope: Main and Guard

Command level navigation: step down one command level. 

 3.5.12 L5-* Unused

Level 5 Key Scope: 

There is no command implemented at this location.

Technisonic Industries Ltd. 57

5-9 Set Main Unit ID

Unit ID #: 0000001
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

58 Technisonic Industries Ltd
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

SECTION 4

APPENDICES

The appendices contain information referred to from the main document.

4.1 Appendix A. Installing the Jumper for Restricted Level Access.

To do so refer to figures 4-1 and 4-2, and follow these steps:

1. Ensure that the power to the unit is off.

2. Remove the left hand side cover (10 philips screws)

3. Locate the 6 pin jumper field (approximately half way between the front and rear of the

radio).

4. Place a 0.1” shunt on the set of jumper pins closest to the front of the radio.

The user can now select level 4 (maintenance mode).

Figure 4-1. The Screw positions to Remove the Left Hand Side Panel

Figure 4-2. The Shunt Position to Enable Level 4 Access

NOTE: Jumper access to this command level MUST BE DISABLED when the radio is used in flight.

Restricted commands are NOT required for flight operation.

Use of restricted commands in flight may cause data loss or lock the transceiver.

Technisonic Industries Ltd. 59

:

Place shunt on middle Jumper pins pair

: : :
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

4.2 Appendix B. CTCSS Tone and DCS Code Tables

The tables below show the CTCSS tones and the DCS codes supported.

Table 4-1 Table 4-2

CTCSS Tones (Hz.) DCS Codes

67.0 23 315

69.3 25 331

71.9 26 343

74.4 31 346

77.0 32 351

79.7 43 364

82.5 47 365

85.4 51 371

88.5 54 411

91.5 65 412

94.8 71 413

97.4 72 423

100.0 73 431

103.5 74 432

107.2 114 445

110.9 115 464

114.8 116 465

118.8 125 466

123.0 131 503

127.3 132 506

131.8 134 516

136.5 143 532

141.3 152 546

146.2 155 565

151.4 156 606

156.7 162 612

162.2 165 624

167.9 172 627

 173.8 174 631

179.9 205 632

186.2 223 654

192.8 226 662

203.5 243 664

 206.5 244 703

210.7 245 712

218.1 251 723

225.7 261 731

229.1 263 732

233.6 265 734

241.8 271 743

250.3 306 754

254.8 311

60 Technisonic Industries Ltd
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

4.3 Appendix C. Programming Channel data using TDP and a PC.

The TDFM-136(A) supports loading memory data from a PC using TDP-136 Radio

Programming software. Do NOT use 'MultiTDP' it does not work with this radio. For full

information see the “TDP-136 PC Software Installation & Operating Instructions”, TiL

#00RE277.

In brief, you will need:

• A PC running Microsoft Windows (2000, NT, XP, Vista, or Win7), with TDP-136

installed.

• A suitable connecting cable (TiL #003469-1) or a TiL Radio Test Jig (04T139) and

serial cable (9 pin).

• 24-30Volt power supply @ 3A.

With the unit powered up and correctly connected to a PC, put the radio into PC

Communications Mode (use command L3-8). Once done you will see:

Figure 4-3. The Communicate with PC Command Screen

Start the TDP, you will see a screen similar to:

Figure 4-4. The TDP-136 Radio Programming Software Window

Technisonic Industries Ltd. 61

3-8 Communicate with PC

Ready
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

Once the transceiver is in PC communications mode, and is correctly attached to a PC

running the TDP software, then the control of all functions is via the software running on the

PC.

You can get the contents of the transceiver using the “Upload (from Radio)” button.

You can edit a record by clicking on the appropriate line in the memory summary box and

then changing the values in the “Basic Information”, “Rx Information”, and “Tx Information”

blocks at the top of the screen. Note that the “Tx” function is un-editable unless you have

the duplex “Dx” button selected. Press 'Save Record” when done.

Create a new record by selecting a Memory number using the “Channel” scroll widget, then

fill out the appropriate information for Basic, Rx and Tx. Again, press “Save Record” when

done.

Once you have modified a file, or created a new one, press “Download (to Radio)”, and the

records will be transferred to the transceiver.

62 Technisonic Industries Ltd
TDFM-136(A) Operating Instructions for Firmware Release 3 10RE432

4.4 Appendix D. 2.5 kHz & 6.25 kHz Valid Frequencies

Table 4-3 shows the frequencies that the transceiver may be tuned to, both 2.5

kHz. steps and 6.25 kHz. steps are supported. Frequencies from 136.0000 to

136.0975 Hz. are shown, the pattern repeats every 100kHz. through the band.

Table 4-3. Valid Frequency Pattern

2.5 kHz 2.5 and 6.25 kHz 6.25 kHz

136.00000 136.00000 136.00000

136.00250 136.00250

136.00500 136.00500

136.00625 136.00625

136.00750 136.00750

136.01000 136.01000

136.01250 136.01250 136.01250

136.01500 136.01500

136.01750 136.01750

136.01875 136.01875

136.02000 136.02000

136.02250 136.02250

136.02500 136.02500 136.02500

136.02750 136.02750

136.03000 136.03000

136.03125 136.03125

136.03250 136.03250

136.03500 136.03500

136.03750 136.03750 136.03750

136.04000 136.04000

136.04250 136.04250

136.04375 136.04375

136.04500 136.04500

136.04750 136.04750

136.05000 136.05000 136.05000

136.05250 136.05250

136.05500 136.05500

136.05625 136.05625

136.05750 136.05750

136.06000 136.06000

136.06250 136.06250 136.06250

136.06500 136.06500

136.06750 136.06750

136.06875 136.06875

136.07000 136.07000

136.07250 136.07250

136.07500 136.07500 136.07500

136.07750 136.07750

136.08000 136.08000

136.08125 136.08125

136.08250 136.08250

136.08500 136.08500

136.08750 136.08750 136.08750

136.09000 136.09000

136.09250 136.09250

136.09375 136.09375

136.09500 136.09500

136.09750 136.0975

Technisonic Industries Ltd. 63
10RE432 TDFM-136(A) Operating Instructions for Firmware Release 3

4.5 Appendix E. Default Tables

This Appendix shows default values for various system parameters.

Table 4-4. The Memory Template Factory Defaults

Parameter Value

Basic

Scan List 1

Text Description “Desc “

Operating Mode w

Receive

Rx Frequency 141.0000

Rx Squelch Mode x

Rx Squelch TalkGroup Value $0001

Rx Squelch Tone Value 67.0

Rx Squelch Code Value 23

Rx NAC Value $293

Transmit

Tx Frequency 141.0000

Tx Squelch Mode x

Tx Squelch TalkGroup Value $0001

Tx Squelch Tone Value 67.0

Tx Squelch Code Value 23

Tx NAC Value $293

Tx ID Call Value 0000001

Table 4-5. Configuration Parameters Default Values

Parameter Range Default

Boot Memory Last used, last programmed, home Last Used

Home Memory 001 to 230 (must be programmed) 001

Sidetone Volume 00 to 85 63

Noise Squelch Level 00 to 15 10

PTT Timer 30, 60 or 90 seconds 90 seconds

T.G. & NAC Edit Mode Decimal, Hexadecimal Hexadecimal

Table 4-6. Scan Parameter Default Values

Parameter Range Default

Revert Mode Last contacted, currently selected last contacted

Reply Timer 0 to 20 seconds 3 seconds

Monitor Timer 0 to 90 seconds 10 seconds

Delay Timer 0 to 15 seconds 5 seconds

Table 4-7. Unit Identification (UID) Default Values

Channel Range Default

Main

0000001 - 9999999

0000001

Guard 0000002

Table 4-8. Restricted Level Password Default Values

Command Level Each Digit Range (8 digits) Default

Maintenance 0-9, A-Z, a-z, space, and

! “ # $ % & ' ( ) * + , - . /

00000000

Supervisor 10000000

64 Technisonic Industries Ltd