4.4 Microphone
1
2
10
3
5
6
9
7 8
4
NO. Key Functions
1 UP Increase frequency, channel number or setting value
2 DOWN Decrease frequency, channel number or setting value
3 PTT Press the PTT (Push-TO-Talk) key to transmit
4 Number Key Input VFO frequency or DTMF dial out etc.
5 A/B band Choose left band or right band as Main band
6 Band indicator The indicator light on for Main band
7 TX/RX indicator Light green while receiving, Light red while transmitting
8 MIC Speak here during transmission
9 Speaker
When shut the speaker in the base, you can hear the calling by
this speaker
10 Lock UP/DOWN
When this key is in up position, It is unlock UP/DOWN key, when
this key is in down poisition, UP/DOWN key will be locked
MIC Connector Diagram(in the front view of connector)
Key Pad Serial Data
+5V
DOWN
UP
MIC GND
MIC
PTT
GND
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