AB Amps 980A Operations Instructions download pdf (Page 121)

TO 31R2-2GRC171-2

TM 11-5820-815-14

NAVELEX 0967-LP-544-5010

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

CONTROL SETTINGS

OPERATION OF TEST AND OPERATION PERFORMANCE

STEP EQUIPMENT POINT OF TEST OF EQUIPMENT STANDARD

RADIO RECEIVER-TRANSMITTER OPERATIONAL PERFORMANCE (Cont)

73 PLL OUT PLL OUT 0.5 to 1.5 V dc.

(Cont) (A10A1TP4)

PLL FAULT PLL FAULT 2.0 to 5.0 V dc.

(A10A1TP5)

PA FWD PA FWD 0.5 to 1.2 V dc.

(A10A1TP6)

PA REFL PA RE FL -0.3 to 0.3 V dc.

(A10A1TP7)

ALC ALC 0.5 to 2.5 V dc.

(A10A1TP8)

KEY 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 RECT DC 21 to 60 V dc.

(A10A1TP13)

74 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)

75 Connect digital multi- Unkey transmitter.

meter to the following

RT-980/GRC-171 test

points and verify

readings:

RCV AUDIO RCV AUDIO 0.16 to 0.3 V rms.

(A10A1TP10)

IF AGC IF AGC -0.3 to -0.7 V dc.

(A10A1TP12)

76 Turn off and disconnect Place Radio Set

all test equipment from AN/GRC-171 in

RT-980/GRC-171. operational status

required.

5-23

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