Navicom RT-420
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Direct Key Operation
Power ON/OFF
Turn the Volume key knob clockwise until a click sound heard the unit will power on.
The volume VR include the power switch.
The unit will start with Normal mode. .
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Turn on the backlit in full scale for 5 sec
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Recall the last channel number, TX power settings and operational mode
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If no last channel info, go to Channel 16, TX Power be Hi
Volume Control
Adjust the volume knob to control the loudspeaker volume level.
Squelch
At the radio mode to adjust the squelch level, short press the SQL key will
Flash SQL’s level , press UP/DOWN key to select SQL level accordingly.
UP/DOWN
At the normal mode, they act as Channel Up/Down. When it press > 0.5 sec, the unit will start scrolls
through the channels at 125ms intervals. It returns to normal mode when key press is released.
16/9 CHANNEL
Summary of CH16/9 Key operation:
1. Jump to either Channel 16 or 9 (priority channel) directly by 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.
Note: Accessing the priority channel will change the power setting to high power. The user can change
the power setting to low power by pressing Hi/Lo/LOCK key. If the priority channel is limited by the
cloning software for 1-W only, accessing priority channel will still follow the low power limitation. The
setting in the cloning software takes precedent. It is done to make it consistent with the Fix VHF radio.
2.
After the channel is tuned to the priority channel, the “P” icon is lit to indicate that the priority
CH16 or CH9 has been reached. UP and Down key functions normally.
3. When the radio already tunes to the priority channel pressing 16/9 key will revert radio to
the previously used working channel depending on how it being press (see flow chart
above).
To reprogram a secondary priority channel:
1.
Tune to priority CH9. It is indicated by “P” icon. It is done by pressing “16/9” key for more
than 3 sacs.
2.
Then, press and hold the “16/9”key for 3 seconds.
3.
and the current secondary priority channel number should start flashing.
4.
While the channel number is flashing, it can be changed with the “UP” and
“DOWN”
arrow
buttons. The selection can be saved by pressing the “16/9” key (short) and the screen
display “P” icon to indicate that the secondary priority channel has been changed.
5.
The user can reprogram the secondary priority channel on the HM160
