General Information | RS20S User Guide
9. 16 / 9 (radio and handset)
Short press to change to priority channel. Press again to return to
original channel.
For US models: Long press to make Channel 09 the priority
channel.
The default Priority Channel is CH16.
10. DISTRESS
Short press to start a distress call, where the nature of distress can
be selected from a list.
Long press the distress button to initiate an ‘undesignated’ distress
call.
This call is broadcast to all DSC equipped radios, so will create an
alarm on every DSC radio within range.
If position information is available it will be included in the
transmition.
11. H/L (handset mic only)
Transmission Power.
Press to toggle between high (25 W) or low (1 W) transmission
power for the entire channel bank. The HI or LO selection is shown
on the LCD.
Some channels allow only low power transmissions. Error beeps will
sound if attempting to change the transmission power while on one
of these channels.
Some channels allow only low power transmissions initially, but can
be overridden to high power by pressing (and holding) H/L after
depressing PTT. Keep the H/L button pressed down after releasing
the PTT button, if wanting to transmit again on high power.
12.
+ / - (handset mic only)
Channel change.
Short press (+) goes up one channel, or (-) goes down one channel.
Holding either key will, after a short delay, step rapidly through the
channels.
13. PTT (handset mic only)
Push-to-talk button.
Press button to transmit. Only depress for duration of message to be
broadcast. Radio can’t receive while it is transmitting.
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