-7-
ExtIntercom AuxAudio 1
3
4
2
PortableStationConnect
BTR-300
Talk
HeadsetControls
Volume
Power
Headset
PortableTransmitOn
Gain O/M
PushTwiceto Latch
RadioCom
ä
POWERON
INDICATOR
POWERON-OFF SWITCH
LOCALHEADSET CONNECTOR
LOCALHEADSET VOLUME
MICON PUSH-TO-TALK/
LOCK-TO-TALKSWITCH
LOCALPUSH-TO-TALK INDICATOR
LOCALMIC GAIN CONTROL
LOCALMIC
OVERMODULATION
INDICATOR
EXTERNAL
INTERCOM
AUXILIARY
AUDIO
PORTABLEENABLE
SWITCHESAND INDICATORS
Figure 3
Front Panel BTR-300