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[PTT]: Push-to-Talk Key
The transmitter is enabled for voice communications with another
When the PTT key on the microphone is pressed continuously,
transmission time is limited to
five minutes. This limits unintentional
transmissions due to a stuck PTT key.
In addition, Power is automatically reduced to protect against
overheating due to continuous transmission.
[MENU/DSC]: Menu / Digital Selective Calling (DSC) Control
On the home screen:
Press: Enter "MAIN MENU"
Rotate: Switch to a channel
On other screens:
Press: Select item or confirm the selection
Rotate: Move to other item or select a number
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