Table 4-8. TRANSMIT CIRCUITS TEST PROCEDURE (Cont'd)

TM 11-5895-1141-34

Step

Operation

Normal Indication

a. Reconnect ac voltmeter to transmitting

output terminals, across 600 ohm load

resistor (fig. 4-7).

b. Disconnect audio oscillator.

c. Connect a short circuit across attenu-

Noise level should not exceed -50 dBm.

ator output.

d. With no signal applied measure trans-

mitting output noise level.

Continuity should be indicated between pins

line using an ohmmeter.

4, 18 or pins 1, 17 of J201.

For each additional channel used, repeat

steps 1 through 10. Refer to figure FO-15

for connecting to J201 and J202 for trans-

mitting audio and keying terminals on

other channels.

Remove the audio signal source from the

microphone input leads to the dual plug

upon completion of all tests.

4-17