Subject: TS440S Interface Information
Posted: 18 Jul 88 04:30:10 GMT
Organization: Systems'n'Software San Diego, CA
 
A recent posting asked about the TS400 Interface.
 
I just came across the following which describes how to build
one yourself and save big $$. I do not know the source of
the article.
 
--------------------------------------------------------------------------------
Mark C. DiVecchio 10435 Mountain Glen Terrace, San Diego, CA 92131
K3FWT			Home of PC-VT and LPTx		619-549-4056
sdcsvax!man!wolf!markd                   Bulletin Board 619-549-3927
--------------------------------------------------------------------------------
 
 
Kenwood Computer Interface Instructions
_______________________________________
 
     These Instructions are TS-440 specific, but the basics also apply
to the TS-940, TS-811 and TS-711.
 
     It is possible to save yourself a few dollars and lose nothing in
quality by buying the parts to upgrade your Kenwood radio for computer
control. Just purchase the parts were you find them and install them
using the instructions in the Radio's Manual.
 
     IC 54 is a uPD-8251-AC   Serial Communications Interface.
                Commonly called an 8251A    ($1.89 Mail Order)
     IC 55 is a TC-4040-BP    12 Stage CMOS Divider.
                Commonly called a 4040      ($0.69 Mail Order)
 
     The IC-10 Interface Kit from Kenwood Contains ONLY these two parts
and less instructions than are in this file.  The only thing you are
going to miss, is the $22+ price tag on the IC-10 Kit.
 
 Signals are    TTL levels  (NOT RS-232)
Baud rate is    4800 (1200 Opt.)
   Format is    ASCII Serial;  1 Start, 8 Data, 2 Stops
 
   The Baud rate may be changed to 1200 Baud by removing jumper W50 and
installing a jumper from the left pad to the center pad as viewed from
the front of the radio.  This will become obvious once you have the
radio opened up.  Many other Baud rates are possible, just look at the
schematic.
 
     As long as you are in the radio, lift D-60 to enable the 10 Hz.
display.  The main tuning knob is varing this digit, so you might as
well see it.  It also helps when using RIT/XIT as the RIT/XIT display
does not resolve the 0.01 KHz. digit.  This  Modification is in the
Radio's Book.
 
     Not in the book is the fact that if you lift D-80 and do an MPU
reset, you will be able to transmit on any frequency between 1.5 and
30.0 MHz.  This means you will be able to  work the Mars nets, Etc.  Do
not transmit out of band.  It is illegal even if it is accidental.
 
     Some computers use TTL levels on their serial ports.  If so, here
is a time when you will not have to convert it to RS-232.
 
  The IF-232 Interface from Kenwood is a 1488 and a 1489 chip in a box. 
These are an RS-232 Quad Line Driver and Receiver and are available at
Radio Shack for $1.29 Each.  Here is an easy project that will save you
a lot over the $69+ Kenwood price  of the IF-232 Interface.  The 1488
needs a + and - supply. Unregulated + and - 12vdc is just fine. Get the
+5 vdc for the 1489 by putting a 7805 regulator on the +12 vdc supply. 
100 ma. is about the max you'll draw, so the smallest transformer you
can find will still be plenty large.  Don't forget to series up two of
each gate to cancel the inversion that the 1480's produce.
 
 
 
ACC-1  Connector                  Use a 6 Pin DIN Connector.
                                         (Radio Shack $1.29)
Pin     Signal  Comments
________________________
 
1       Gnd     Signal Ground
2       TXD     Serial Data from Radio to Computer
3       RXD     Serial Data from Computer to Radio
4       CTS     Computer Ready;  (Radio Input)
5       RTS     Radio Ready;    (Radio Output)
6               No Connection
 
Pins 4 and 5 may be left Unconnected.
 
 
 
 
 
 
***** Command Description for Kenwood Computer Interface *****
______________________________________________________________
 
                Auto Information
                ________________
AIn; 
                The Radio Will Send the Status Info Automatically
                Whenever the Operator Manually Varies any Function
                on the Radio which is Covered in the IF; Command
                        Where   n = 0 for Auto Info OFF
                                    1 for Auto Info On
 
                The Status Information Will be Sent in the Form :
                        As defined in the IF; Command
 
 
                Display Memory
                ______________
DMnnnn;
                This is a Factory Diagnostic Function
                and is of no practical use to the operator
 
                The Contents of the MPU Memory will be Read
                        Where   nnnn = MPU Address (0000 Thru FFFF (HEX))
 
                The Contents of the MPU Memory Will be Sent in the Form :
                 DMnnnn-aabbccddeeffgghhiijjkk;
                        Where   nnnn = MPU Address (0000 Thru FFFF (HEX))
                              aa~~kk = Hex Number Pairs Of Next 16 Locations
 
 
                Down
                ____
DN;
                The Frequency or Memory Channel
                Will Decrement One Step
 
 
                Frequency VFO A / VFO B Request
                _______________________________
FA;
FB;
                The Frequency in the Selected VFO Will be Read
 
                The Frequency Will be Sent in the Form:
                 FAggmmmkkkhhh;   or
                 FBggmmmkkkhhh;
                        Where    gg = GHz. Value
                                mmm = MHz. Value
                                kkk = kHz. Value
                                hhh =  Hz. Value
 
 
                Frequency VFO A / VFO B Select
                ______________________________
FAggmmmkkkhhh;
FBggmmmkkkhhh;
                The VFO Selected Will be Set to the Frequency Defined
                        Where    gg = GHz. Value (May be sent As 00 or Spaces)
                                mmm = MHz. Value
                                kkk = kHz. Value
                                hhh =  Hz. Value
 
 
                Function Select
                _______________
FNn;
                The Function Defined Will be Selected
                        Where   n = 0 for VFO A
                                    1 for VFO B
                                    2 for MEMORY
 
                Identify Model Request
                ______________________
ID;
                The Model of the Radio Will be sent in the Form :
                 ID00n;
                        Where : n = 1 for a TS-940 (*)
                                n = 2 for a TS-811 (*)
                                n = 3 for a TS-711 (*)
                                n = 4 for a TS-440
 
 
                Read Information Request
                ________________________
IF;
                The Status Information Will be Sent in the Form :
                 IFggmmmkkkhhh     snnnzrx yytdfcp
                        Where   gg~~hhh = Value as defined in FA Command
                                      s = "+" or "-" Value of RIT/XIT
                                    nnn = Value of RIT/XIT (n.nn kHz.)
                                      z = "0"  (Not Used in TS-440)
                                      r = Value as defined in RT Command
                                      x = Value as defined in XT Command
                                     yy = Memory Channel No.
                                      t = 0 for Receive
                                          1 for Transmit
                                      d = Value as defined in MD Command
                                      f = Value as defined in FN Command  
                                      c = Value as defined in SC Command
                                      p = Value as defined in SP Command  
 
 
                Lock Knob
                _________
LKn;
                The Manual Frequency Control Functions Will be Disabled
                        Where   n = 0 for Lock OFF
                                    1 for Lock ON
 
 
                Memory Channel Select
                _____________________
MCxmm;
                The Memory Channel Defined Will be Selected
                        Where:  x = Don't Care   (Use "0" or Space)
                               mm = Memory Channel No. (00 thru 99)
 
 
                Mode Select
                ___________
MDn;
                The Mode Defined Will Be Selected
                        Where:  n = 1 for LSB
                                    2 for USB
                                    3 for CW
                                    4 for FM
                                    5 for AM
                                    6 for FSK
 
 
                Memory Read
                ____________
MRnxrr;
                The Memory Channel Defined Will be Read
                        Where:  n = 0 for RX VFO
                                    1 FOR TX VFO (Split Channels Only)
                                x = Don't Care      (Use "0" or Space)
                               rr = Memory Channel No.    (00 thru 99)
 
                The Memory Information will be sent in the Form :
                 MRn rrggmmmkkkhhhdz    ;
                        Where:  n = 0 for RX VFO
                                    1 FOR TX VFO (Split Channels Only)
                               rr = Memory Channel No.    (00 thru 99)
                         gg~~hhh = Value as defined in FA Command
                                d = Value as defined in MD Command
                                z = "0"  (Not Used in TS-440)
                        (Note: Four trailing Spaces)
 
 
                Memory Write           
                ____________
MWnxrrggmmmkkkhhhdzxxxx;
                The Memory Selected Will be Set to the Frequency Defined
                        Where:  n = 0 for RX VFO
                                    1 for TX VFO (Split Channels Only)
                                x = Don't Care  (Use "0" or Space)
                               rr = Memory Channel No.    (00 thru 99)
                          gg~~hhh = Value as defined in FA Command
                                d = Value as defined in MD Command
                                z = "0" (Not Used in TS-440)
 
 
                RIT/XIT Clear
                _____________
RC;
                The RIT/XIT will be set to 0.00 kHz.
 
 
                RIT/XIT Down
                ____________
RD;
                The RIT/XIT will Decrement by 0.01 KHz. (10 Hz.)
 
 
                RIT/XIT UP
                __________
RU;
                The RIT/XIT will Increment by 0.01 KHz. (10 Hz.)
 
-- 
---------------------------------
Mark C. DiVecchio 10435 Mountain Glen Terrace, San Diego, CA 92131
K3FWT			Home of PC-VT and LPTx		619-549-4056
sdcsvax!man!wolf!markd                   Bulletin Board 619-549-3927

Newsgroups: rec.ham-radio