2-1. CONTROLS AND INDICATORS (Cont)
Turns on 243.0 MHz transmitter and transmits a beacon tone. Swept audio tone is continuously
transmitted for rescue aircraft to home on. Voice reception and transmission cannot be used
in this mode.
Turns receiver on for reception of 243.0 MHz voice or MCW signals. Also permits 243.0 MHz
voice or MCW transmission when keyed by PUSH TO TALK or MCW buttons.