Chapter 2: Operation
10 General use and navigation
Power on, speaker volume and antenna tuning
The MF/HF radio has a dual-function on/off knob for power
on/off and volume control.
Action Procedure
Power on push the on/off knob.
Power off push and hold the on/off knob and follow the
instructions in the display.
Speaker volume
Turn the volume knob (clockwise = louder,
counterclockwise = softer, until muted). When muted,
is shown in the display.
Volume of the
handset
earpiece
To adjust the volume of the handset earpiece see
Controller setup on page 49.
Tuning the
antenna unit
The radio tunes first time you push the
PTT button on a new frequency. As long
as the tuning symbol is in the display, the radio is not
transmitting. Wait until the tuning symbol has
disappeared before talking. Tuning may take from 0.1 s
to 8 s.
Tuning is automatically done
• after selection of a new frequency,
• after a four hour time out
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