Navicom RT-420DSC
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KEY OPERATION
Power ON/OFF & Volume Control
Turn the Volume knob clockwise until a click sound heard, the unit will power on
Volume Control:
Turn the Volume knob: Clockwise-volume up, Counter-clockwise-volume down.
Special function: Distress Key and Real DSC
Send the Distress message:
Pull the Distress key cover then able to Press the Red key into the Distress Menu selection. Then
select the current distress situation such as the “Flooding” then press and hold for 3 seconds, the
selected DSC message will be send.
This message also will be resend within 4 mines, press the Up key will pause or resume the resend,
press Call/Menu key will resend immediately. Press the CH/*/WX key will exit the current menu and
give the option on cancel of this selected distress alert.
Receive the Distress message:
The HM360 model has two receivers, one receiver used for receiving/transmit voice and another
receiver used for to continually monitor 70 channels. The DSC function for HM360 model is operated
by individual way.Even you are using the HM360 to make the transmit or receive, when the DSC
message is arrived.The HM360 handheld model always can receive all of the DSC message as a fixed
mounted marine radio.
Press the Call/Menu key and select the receive call log then press the enter to see all received DSC
message
.
SQL key
Short press the SQL key then press the Up/Down key to select squelches level accordingly. Then
short press the SQL key to exit the squelch level adjustment.
Long press SQL key, then move into GPS feature, press up/down key to see COG/SOG and the GPS
signal via the current satellite.
To select the kilometer and Knots, long press call/menu key then select the GPS setup, then choose
the GPS setting, then choose the speed unit, then you able to choose knots/km.
Once select then exit and the radio will keep your last choice.
Up/Down key
At the normal mode, they act as Channel Up/Down key. When it press > 0.5 sec, the channels will
change in a quick way. It returns to normal mode when key press is released.
16/9 key
At the normal mode ,pressing the 16 / 9 Key (short press to jump to priority CH16 at High Power and
long press to jump to priority CH9 at High Power) if the current channel is not the priority channel
After the channel is tuned to the priority channel, the “P-CH” and “P-2nd”icon is lit to indicate that the
priority CH16 or CH9 has been reached. UP/Down key functions normally.
Select the second priority channel
Change the second priority channel by 16/9 key: normally the second priority channel is initially sets
as the channel 9.At the normal mode, Long press the 16 / 9 Key will display the second priority
channel as channel 9.Then long press the 16 / 9 Key again and the “2nd Prior” icon will display on the
screen. Using the UP/Down key to choose your prefer channel as the second priority channel then
