Wireless Monitoring System

Analog Wireless Intercom System
Electrical characteristics
Base Station
YFF-4530

Half wavelength dipole antenna

Number of frequencies

Reception: 454MHz band

12.5 kHz (Interleave 6.25 kHz)

Oscillation system

Quartz control PLL synthesizer system

Frequency stability

With in ±4ppm

Compander characteristic

主な特長• The transmitter mixer can change transmitter frequency

Transmission compressor 2: 1, Reception expander 1: 2

Antenna power

With in 1mW (+20 -50%) Total of antenna terminal–

2.5 μW or less–Modulation scheme

Direct frequency modulation–

Voice frequency

3 kHz or less(300Hz~3kHz)–

60 dB more than carrier wave power–• There are two types of transmitters: a long-antenna type

With in 8.5 kHz–±2.5kHz less than when carrier frequency without modulation–

designed for a long transmission distance (WTO-0703A)

Strength intensity of spurious radiation

Neighboring channel leak powerOccupied frequency Bandwidth
Frequency deviation
Reception system

Double superheterodyne

Reception sensitivity

0 dB μV or less at SINAD 12 dB

Squelch sensitivity

Tone SQ: 0 dBμV or less,Noise SQ: 0 dBμV or lessCabinet radiation

4nW or less

Audio frequency characteristic

CommonTransmission: 413MHz band,Reception: 454MHz band

Downward (master unit transmission): 24 waves, upward (slave unit) 72 waves

Separation

Reception

License Free50Ω

Transmission: 454MHz band,
Reception: 413MHz band

Frequency rand

Wireless Monitoring System
FM70MHz Band Output 10 mW–

Helical antenna or whip antenna

75Ω

Antenna impedanceTransmission

Command receiving device
YRT-4120

F3E/F2D (however, use is inhibited only with F2D)

Radio wave type
Antenna type

Frequencycommon

Personal Station
YMT-4120and turn it on and off by remote control.
• It is possible to use a microphone cable to connect between thetransmitter mixer and the transmitter.

and a portable type designed for mobility (WTP-0705).
• One frequency is selected from 4 frequencies(74.58MHz / 74.64 / 74.70 / 74.7) for a channel.
Up to 3 frequencies can be used in the same area.
• Focusing on stability, a transmission output of 10 mW (0.01 W) is

Within 300 Hz~3kHz

Line input/output

0 dBm, balanced 600Ω (4W)
-20 dBu, unbalanced 220Ω (2W)

Microphone input-60 dBm, balanced 600ΩSpeaker output

Inside; 1W(8Ω),
Outside: 1W(8Ω)

Program input-20~+10 dBm unbalanced 600Ω

Power supply use range−60 dBm, unbalanced 600Ω

with a frequency response of 100 Hz to 7 kHz.

–

15 mW or more (at 8Ω)–At 3.0 V: 150 mA or less

AC100V ± 15%: 1.5A

Use environment

designed even with a small power, achieving high-quality sound–At 3.0 V: 120 mA or lessWarning lamp flashes at 2.3 V or lessTemperature: -10~+50˚C, Humidity: with in 35~90%

Frequency within license
BS
Downward transmission frequency

PS
Upward transmission frequency

PS
Upward transmission frequency

PS
Upward transmission frequency

Channel Frequency Channel Frequency
No.
(MHz)
No.
(MHz)

Channel Frequency Channel Frequency
No.
(MHz)
No.
(MHz)

Channel Frequency Channel Frequency
No.
(MHz)
No.
(MHz)

Channel Frequency Channel Frequency
No.
(MHz)
No.
(MHz)

52

1454.05000

2454.05625

1413.70000

2413.70625

25

413.85000

26

413.85625

49

414.00000

50

414.00625

3454.06250

4454.06875

3413.71250

4413.71875

27413.8625028413.86875

51414.01250

52414.01875

5454.07500

6454.08123

5413.72500

6413.73125

29413.87500

30413.88125

53414.02500

54414.03125

7454.08750

8454.09375

7

413.73750

8

413.74375

31413.88750

32413.89375

55

414.03750

56

414.04375

9454.10000

10454.10625

9413.75000

10413.75625

33

413.90000

34413.90625

57

414.05000

58414.05625

11454.11250

12454.11875

11413.76250

12413.76875

35

413.91250

36413.91875

59

414.06250

60

414.08875

13454.12500

14454.13125

13

413.77500

14413.78125

37

413.92500

38

413.93125

61

414.07500

62414.08125

15454.13750

16454.14375

15413.78750

16413.79375

39

413.93750

40

413.94375

63

414.08750

64414.09375

17454.15000

18454.15625

17413.80000

18413.80625

41413.95000

42413.95625

65

414.10000

66

414.10625

19454.16250

20454.16875

19413.81250

20

413.81875

43

413.96250

44413.96875

67414.11250

68

414.11875

21454.17500

22454.18125

21413.82500

22413.83125

45413.97500

46413.98125

69

414.12500

70

414.13125

23

454.18750

24454.19375

23413.83750

24

413.84375

47413.98750

48

413.99375

71414.13750

72

414.14375

53

Wireless Monitoring System
WTO-0703A

105±2

Receiver
WRP-0705(Unlimited)

Receiver
WRP-0705(Unlimited)

Expansion/contraction typerod anten

35±2Receiver
WRP-0705(Unlimited)

Transmitter

Element part can berotated through 360˚

Transmitter
WTO-0703A

Receiver
WRP-0705(Unlimited)

Receiver
WRP-0705(Unlimited)

Receiver
WRP-0705(Unlimited)

Receiver
WRP-0705(Unlimited)

Transmitter
WTP-0705

LINE in x 2 Systems

4 M3screw holes

Rf power output
The Number of Channels
Input
Structure

MIC inReceiver
WRP-0705(Unlimited)

Transmitter mixer
WFF-0711A

Power Source
Environment
WeightSize

Channel scan function

130±2

Tamper proof Torx screw
3 (M2.6x4 flat countersunk head screw) used

Battery pack:YBA-4120AA alkali cell x210mW
４Channels PLL Type
–60 / –20 / +4 dBm (600Ω)
Wall-mounting and microphone stand mounting system
DC10V(supplied by WFF-0711A) DC7～15V(External Power)
More than 18 hours(AA alkaline×2)–10℃～+50℃
680g (Including batteries)
W : 105 × H : 130 × D : 35 (mm) except protuberance

Transmitter mixer

810±10 (Maximum length)

Example 2

180±5 (Minimum length)

Example 1

Fixing screw:
PF1/2

WFF-0711A

AreaaA

1ch

Channel scan

(74.58MHz)

250±2

Area

77±2 (8)B3ch
260±2(74.70MHz)

Since the receiver has a channel scan function, it is possible to automatically change the channel,
even if the channel of the transmitter is changed or the system is moved to a different area.

Transmitter

WTP-0705

Input
OutputChannel Change
Frequency Characteristic
Environment
Power Source
Wight

LINE ×2 MIC ×1(600Ω)
LINE ×1 (Transformer Balanced)
Remote Control, 4 Channels
100Hz ～ 10kHz–10℃～+50℃
AC100V / DC12V
2.5kg

WRP-0705

19±2Receiver

Rf Power Output
The Number of Channels
Input
Structure
Power Source
Available Time
Environment
WeightSize

5410ｍW
４ channels ＰＬＬ type
–60 / –20 / +4 dBm (600Ω)Portable size
DC1.5V (AA alkaline)
More than 10 hours (1 AA alkaline）–10℃～+50℃
100g (Including battery)W : 60 × H : 80 × D : 19 (mm) except protuberance

60±2Nameplate

Receiver80±280±222.8

149±1045±20˚

1819±2180˚AA alkali cell x1
Case : Black

Receive Sensitivity
Type of Reception
The Number of Channels
Structure
Power Source
Available Time
Environment
Wight

Less than 2μV (SINAD12)Space Diversity
４ Channels ＰＬＬ typePortable size
DC1.5V (AA alkaline)
More than 18 Hours–10℃～+50℃
100g (Including Battery)

60±255