4
Basic Functions
Switch Supply On/Off
Switches equipment on when pressed. Switches equipment off when
pressed for 2 seconds.
Start-up display is ‘Telephony’ with last used settings.
Note: The equipment should always be switched on while at sea in order to
maintain continuous DSC watch on 2187.5 kHz.
Switch Speaker On/Off
Switches loudspeaker on/off.
Switch to Telephony/DSC
Switches between Telephony display and DSC display.
Telephony Functions
Select 2182 kHz
Sets TX and RX frequency to the radiotelephone distress frequency 2182
kHz, selects SSB Telephony mode, sets Power level High, Squelch Off,
Speaker On and increases Volume if lower than a preset level.
Change Mode
Changes between ‘SSB TELEPHONY’, ‘AM BROADCAST’, and ‘DSC’:
Optionally ‘LSB’ and ‘SSB REMOTE’, if enabled.
In AM BROADCAST mode TX frequency is shown dimmed and transceiver
cannot be keyed.
Change Output Power
Changes between ‘HIGH POWER’ and ‘LOW POWER’
DSC calls are automatically sent in ‘HIGH POWER’.
‘LOW POWER’ cannot be selected on the six telephony distress frequencies.
Re-tune the ATU
Starts a TX tuning sequence.
TX tuning is done automatically the first time the transmitter is keyed on a
new frequency and before any DSC transmission.
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