Table 5-3. Radio Receiver-Transmitter RT-980/GRC-171 Performance Tests (Sheet 17 of 17)

TO 31R2-2GRC171-2

TM 11-5820-815-14

NAVELEX 0967-LP-544-5010

CONTROL SETTINGS

OPERATION OF TEST

AND OPERATION

PERFORMANCE

STEP

EQUIPMENT

POINT OF TEST

OF EQUIPMENT

STANDARD

RADIO RECEIVER-TRANSMITTER OPERATIONAL PERFORMANCE (Cont)

PLL OUT

0.5 to 1.5 V dc.

(Cont)

(A10A1TP4)

PLL FAULT

2.0 to 5.0 V dc.

(A10A1TP5)

PA FWD

0.5 to 1.2 V dc.

(A10A1TP6)

PA REFL

PA RE FL

-0.3 to 0.3 V dc.

(A10A1TP7)

ALC

0.5 to 2.5 V dc.

(A10A1TP8)

KEY

0.05 to 0.5 V dc.

(A10A1TP9)

XMT AUDIO

XMIT AUDIO

Whistle or hum into

0.6 to 1.1 V rms.

(A10A1TP11)

microphone.

RECT DC

21 to 60 V dc.

(A10A1TP13)

Connect vom between

SERVO +

SERVO+ and SERVO-

SERVO + and GND and

(A10A1TP1)

to ground (in quiescent

SERVO - and GND test

state) 0 to 6.5 V dc.

points on the

GND

RT-980/GRC-171.

(A10A1TP14)

SERVO -

(A10A1TP2)

Connect digital multi-

Unkey transmitter.

meter to the following

RT-980/GRC-171 test

points and verify

readings:

RCV AUDIO

0.16 to 0.3 V rms.

(A10A1TP10)

IF AGC

-0.3 to -0.7 V dc.

(A10A1TP12)

Turn off and disconnect

Place Radio Set

all test equipment from

AN/GRC-171 in

RT-980/GRC-171.

operational status

required.

5-23