11
Controls & Indicators
HT642
On / Off button. Press to turn radio on, press and hold to turn off.
Press up / down buttons to increase / reduce volume.
Channel / Scan Control. Rotate to select the desired channel or scan setting.
Push To Talk (PTT) button. Press to speak and release to listen.
Dealer programmable button 1 (ask your dealer for more information).
Dealer programmable button 2 (ask your dealer for more information).
Monitor button. Press button to turn on / off.
LED indicator.
• RED Steady = Transmitting
• RED flashing slowly = Battery needs re-charging
• GREEN Steady = Receiving
1
8
7
6
5
4
3
2
Antenna
Dealer
programmable
button 1
5
Push To Talk
(PTT) button
4
Dealer
programmable
button 2
6
On / Off
1
Volume control
2
Speaker
Microphone
Monitor
button
7
LED indicator
8
Channel / Scan /
control
3
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