User guide

13
HT644
Controls & Indicators
Antenna
H/L button
10
Push To Talk
(PTT) button
9
Lamp / key
lock button
8
On / Off button
7
Monitor button
1
Volume control
2
Speaker
Microphone
Scan button
3
Up / down buttons
4
MEM button
5
Ch. 16 button
6
Monitor button. Press to monitor channel.
Volume control
Channel scan button. Press to start / stop channel scanning.
Up / down buttons. Press up / down buttons to change channel.
MEM button. Memorise a desired channel for scanning.
Ch. 16 button. Shortcut button to access channel 16.
On / Off button. Press to turn radio on, press and hold to turn off.
Lamp/key lock button. Momentarily pressing this button illuminates the LCD display. Holding this button for
over 1 second activates the key lock.To deactivate press button again.
PTT button. Press & hold to speak. Release to listen.
H/L button. Press and hold this button for one second to toggle between high and low power (1 & 5 Watts).
WX button. Immediately recalls the weather channels.
11
10
9
8
7
6
5
4
3
2
1
WX button
11