Transmit Sec.

Question 1

When the input circuit (A4 audio) is keyed what is the voltage

Answer 1

0v, because of simplex ground

Question 2

A4 audio module the compression amp. Does what 2 things

Answer 2

Prevent over modulation and constant audio out

Question 3

A4 audio module, the low pass and high pass filter frequency range is

Answer 3

300Hz to 6kHz

Question 4

A4 audio module, the second high pass filter frequency range is

Answer 4

16Hz

Question 5

A4 audio module, the second low pass filter frequency range is

Answer 5

25kHz

Question 6

For the A/N GRC 171 how many sample mod signals that go to the ALC are there and what are there names

Answer 6

ANT. FWD PWR.
ANT. REV. PWR.
AND PA FWD. PWR.

Question 7

For UHF and VHF, what is the pwr going into the A8A3 RF pre-driver/ ALC atten

Answer 7

UHF- 20 WATTS
VHF- 25 WATTS

Question 8

The RF filter is a

Answer 8

Tuneable bandpass filter

Question 9

The xmt/rcv switch is used to route (blank)to the rf filter

Answer 9

Audio

Question 10

Where are the second and higher order harmonics attenuated

Answer 10

RF filter A7

Question 11

The RF filter has a (blank)MHz bandwidth to eliminate harmonics

Answer 11

3 MHz

Question 12

(171) normal transmit (xmt) audio or data sent from the A4 (tp11) voltage is

Answer 12

.6 to 1.1 VRMS

Question 13

For local operations, you can key the radio by using

Answer 13

Carrier test, dynamic mic, and carbon mic

Question 14

The purpose of the servo fault ampl is to

Answer 14

Determine the condition of the servomotor

Question 15

What would cause the PA power to drop to 4 watts on the out put

Answer 15

2 db pwr loss or greater

Question 16

What would cause the ALC voltage to be greater than 9vdc

Answer 16

Transmit

Question 17

(171 & 211) what is the normal output pwr. Of the rf filter

Answer 17

20 watts and 25 watts

Question 18

Key one is

Answer 18

Fast attack and slow release

Question 19

Key 2 is

Answer 19

Slow attack fast release

Question 20

(A4) During normal conditions, what is the potential applied to the ready lamp from the A4 module

Answer 20

26 v