2-1. CONTROLS AND INDICATORS (Cont)
Controls sound level from LISTEN speaker or earphone. Controls received signals, not
sidetone. When control is in MAX position, greatest level of sound is heard; when fully turned
down, lowest level of sound is heard, but radio set is not turned off. Control setting does not
affect transmitter output.
Provides connection for radio set antenna.
Provides connection for ear phone. When earphone is connected, LISTEN speaker is
shut off and sound is heard from earphone.
Projects sound of received signal; sound of MCW or beacon transmitter (sidetone)
may also be projected. LISTEN speaker is shut off when earphone is connected.