INSTRUMENT MANUAL –SAILOR PORTABLE VHF SP3520
Poseidon Simulation AS Pharos 7.8 [15-08] Page 9
Using the VHF GMDSS
Basic functions
Switching the radio on and off
To switch the radio on, turn the knob at the top of the radio
clockwise. The display lights up showing the last used channel
and the battery level.
To switch the radio off, turn the knob back counter-
clockwise until it light in the display is turned off.
Selecting the working channel
To select channel 16 (Distress or Safety), press the 16/C key.
To select the Call channel, use a long press on 16/C (not supported).
To select among all available channels, press ▲ or ▼ on the keypad. For fast
selection, press and hold ▲ or ▼.
The display shows the currently selected channel.
Long press on ▲ or ▼ to select preferred channels are not supported.
Activating a call
To activate a call to the selected channel, press and hold the PTT
button on the side of the radio.
The radio transmits as long as the PTT button is pressed. A small
Tx sign next to the channel number indicates when the radio is in
transmit mode.
Adjusting the volume
To increase the volume, turn the on/off knob at the top of the radio clockwise.
To decrease the volume, turn the knob counter-clockwise.
The display shows the level of the volume, e.g. “VOL 5”, while it is adjusted.
Using Squelch control
To activate Squelch control, press the SQ key.
To set the Squelch level, press (closing) or (opening). The display shows the Squelch
level while it is adjusted, e.g. “SQ 5”.