TABLE 2-1. QUARTERLY PMCS TABLE
Check the modem by operating it. (Refer to TM 11-5805-387-10-2.)
Be sure meter is showing correct indication for dc power input,
discriminator, dc loops or RCV setting, depending on operation.
Perform the following check (Refer to voice transmission procedure
in TM 11-5805-387-10-2)
a. Put on headset.
b. Attach microphone at microphone connector.
c. Press and hold switch to key microphone and talk.
d. Note sidetone in headset.