User's Manual Part 1

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Mode Selection
The mode key changes the mode of operation - LSB, USB, AM, CW or AFSK of the
selected channel. The mode key will only temporarily set the mode for a selected
channel, the mode reverting to that channel’s programmed mode after the channel
is changed, or the transceiver is turned off.
Press the key repeatedly to select the required mode:-
Note:- If the IF filter option is physically fitted and enabled in software, it will
automatically be selected when CW and AFSK mode is selected.
Tune
Press and hold down the key to tune:-
When tuning, the transceiver will transmit, at the power level selected, a carrier on
the channel selected, at 1.6 kHz above the Suppressed Carrier Frequency (SCF)
(displayed frequency) of that channel.
When the tune key is released the display shows the antenna VSWR.