EQUIPMENT DATA.

TM 11-5820-670-12

EQUIPMENT DATA.

1-11.

GENERAL

30.00 to 75.95 MHz

Frequency range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

920 channels, spaced 50 kHz

Number of channels and spacing . . . . . . . . . . . . . . . .

Number of crystals in crystal reference

14 crystals

system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 second maximum at 40F(-40C)

Channel change time . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . .

Within 3.5 kHz of selected channel center

Frequency stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

frequency in less than 20 seconds

Fm voice, homing, retransmission, or

Modes of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

X-mode

24 to 29 vdc, transmit, 4.0 amperes maxi-

Input voltage and current requirements . . . . . . . . . . . . . .

mum; receive 1.0 ampere

500 to 3,000 Hz

Audio response, narrow band . . . . . . . . . . . . . . . . . .

500 to 20,000 Hz

Audio response, wide band . . . . . . . . . . . . . . . .

KY-28 or KY-8

Security adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TRANSMllTER

10 watts minimum

Power output, high . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1 watt nominal

Power output, low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Crystal, indirect synthesis

Frequency control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous transmission to 15,000 feet at

Duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150F (65C) or 35,000 feet at 85F

(29C)

50 ohms

Rf output impedance . . . . . . . . . . . . . . . . . . . . . . . . . .

Narrow band 10%, wide band 7%

Overall system distortion . . . . . . . . . . . . . . . . . . . . .

50 db

Signal plus noise-to-noise ratio . . . . . . . . . . . . . . . .

Narrow band 8 kHz, wide band 20 kHz;

D e v i a t i o n. . . . . . . . . . . . . . . . . . . . .

150 Hz tone 3 kHz

Receiver

Single coversion superheterodyne

Receiver type . . . . . . . . . . . . . . . . . . . . . . . . .

11.5 MHz

Intermediate frequency . . . . . . . . . . . . . .

Fm voice or tone

Signals received . . . . . . . . . . . . . . . . . . . . . . .

32 kHz minimum at 6 db points; 80 kHz

If selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . .

maximum at 60 db points; 100 kHz

maximum at 85 db points

Rf input of 0.5 microvolt modulated at

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1,000 Hz with 8 kHz deviation pro-

duces a signal-plus-noise-plus deviation

to noise plus deviation ratio of 10 db

(tp milliwatts) into a 150-ohm load.

50 milliwatts into a 150-ohm load, fre-

Audio output characteristics . . . . . . . . . . . . . . .

quency response 500 3000 Hz

Narrow band 8/0, wide band 5/0

Audio distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Carrier (noise) or tone (150 Hz)

Types of squelch . . . . . . . . . . . . . . . . . . . . . . . . .

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