10
Powering TheCOM
It is preferred that TheCOM be connected (the positive lead RED wire) directly to the positive
post of the vehicle’s battery. If this is not available a fuse block may be used. If external noises
are heard through the radio such as “alternator wine” (could be from pumps, switches, lights,
clutch fans, other accessories) it is recommended that the power be re-rout directly to the battery
posts.
Turning on the Mobile Radio
Press and hold the volume knob down until the display lights up.
Turing off the Mobile Radio
Press and hold the volume knob down until the display powers down.
Operations
Adjusting the volume
The volume control on the mobile radio affects the overall volume to TheCOM users. It is
typically set a half a turn from the bottom. Turning the volume clockwise will increase the radio
volume and counterclockwise will lower the volume. It is best to adjust the volume while
someone else is broadcasting. For best results we suggest setting the radio to the local weather
channel (see below common channels for weather frequency) and slowly turn the radio volume
clockwise until desired volume is clear. Sometimes backing the volume on the radio slightly will
give a clearer communication from outside signals. After the radio is set, fine tune the volume
with the individual volume controls found on the intercom.
Receiving & Transmitting a Call
Both the receiving radio and the transmitting radio need to be on the same frequency (channel)
that includes privacy codes (CTCSS or DCS codes).
To make a call, press and hold the PTT button wait a moment before speaking and speak into the
microphone. If using a headset, make sure that mic is right against your lips. If using a hand mic,
hold the hand mic about 1-2 inches from your mouth.
To receive a call release the PTT and listen for the transmission to come through. Adjusting your
volume as necessary.
Selecting a Channel
Turn the selector knob to select your desired channel. Alternatively, the up and down arrows on
the mic will change the channel as long as the keypad is not locked. Additional frequencies are
programed into the radio like the weather channels, but they are receive only.
