Navicom RT-420DSC
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DW/TriW key (Dual Watch/Tri Watch)
At the normal mode, short press DW/TRIW key to activate the DUAL WATCH mode. Monitor the
current channel and Ch 16 in cycle. Whenever, Weather Alert is activated, the Wx Alert channel will be
monitored once every 4sec.
Long press DW/TRI key to activate the TRI WATCH mode. Monitor the Ch 16, current channel and 1
programmed channels in cycle.
MOB key
Long press the MOB key will activate the MOB function. The radio will send a MOB call with its MMSI
and latitude and longitude.
Backlight
Any key press will turn on the backlit (if backlit setting is ON ) except the PTT key. The backlit should
be remaining on for 5 seconds if no any keys pressed. The time out will be reset if any key pressed
within the time frame.
TX Time Out
The transmission will be automatically turn off after PTT key pressed over 5 consecutive minutes. The
TX mode will be terminate and back to Rx mode. To indicate the PTT key as the stuck condition. Once
the PTT key is released, the TX time out timer will be reset. PTT key will work back normally.
