Using Your HT642/HT648
On / Off button
Press the on / off button to turn your radio on. A short turn on beep will be heard. To turn off,
press and hold the on / off button until the display extinguishes.
Using your radio
Before using your radio you may need to adjust the volume on the radio to take in to account
background noise. Adjust the volume using the rotary control on the top of the radio.
Transmitting on your radio
Before transmitting, ensure that the channel is not in use.To transmit press and hold the PTT
button and speak approximately 35 - 50mm from the microphone on the radio.To receive,
release the PTT button.
Channel Scan (dealer programmable feature)
Press the dealer assigned button on the radio to start scan. Press again to return to stop.
Monitor Button
Press the orange monitor button on the top of the radio to defeat the squelch mute. Press again
to return to squelch mute.
Securing Your Radio
You may secure your radio to you using either the supplied CBH750 belt clip or using an
optional leather case.
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