TM 11-6625-2632-14
c.If meter indicated in the red area (NO-GO) when the
Observe the meter of the test set. Release the PUSH
TO TALK button.
MCW button was pressed, MCW power output is not
satisfactory. Replace the AN/PRC-90.
b. If meter indicated in the green area (GO) briefly
during whistle, voice power output is satisfactory.
2-11. 243.0 MHz Voice Transmitter Check
NOTE
It is normal for the meter indication to
a. Set the function switch of the transmitting radio
fall back into the red area if the
to the VOICE/MCW 243.0 position. Depress the PUSH
microphone is not held close to the
TO TALK button. Make a steady clear whistle directly
mouth for full sound volume.
into the microphone from a distance of 2 to 3 inches
away.
Figure 2-2. Connection of test set to radios under test.
NOTE
To turn the knob of the function
c. If meter indicated in the red area (NO-GO)
switch to the VOICE 282.8 position,
throughout the test, voice power output is not
press the button in the center of the
satisfactory. Repeat the test carefully. If meter still does
knob while turning the knob in a
not indicate in the green area, replace the AN/PRC-90.
counterclockwise direction.
b. Press the PUSH TO TALK button. Make a
2-12. 282.8 MHz Voice Transmitter Check
steady clear whistle directly into the microphone from a
a. Set the function switch of the transmitting radio
distance of 2 to 3 inches away. Observe the meter of
to the VOICE 282.8 position.
the test set. Release the PUSH TO TALK button.
2-3
