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VHF Marine Radio Protocols
Operating Your Radio
19
Nothing Comes Close to a Cobra
®
Setup Mode Programming
International/Canada/USA Channel Maps
Three (3) sets of VHF Channel Maps have been established
for marine use: International, Canada and USA. Most of the
channels are the same for all three (3) maps, but there are
definite differences (see table in the Apendix on page 50).
Your radio has all three (3) maps built into it and will operate
correctly in whichever area you choose.
To Set Channel Map Operating Area:
1. The Channel Map mode is the second mode on
the Marine (VHF) Setup programming.
2. U, I and C will display, with the current setting
(the I icon is the default) flashing.
3. Press Channel Up/Down button to select the
I, C or U icon.
4. Press Call/Enter/Setup button to save this entry
and move to the next Setup mode programming.
NOTE
One or two of the channel maps might have been
disabled for sales of this radio in some countries.
Call Tone Alert
If Call Tone Alert is set to On, the radio will alert you to a call
from a compatible Cobra radio with a Call Alert.
To Set Call Tone On or Off:
1. Display will show Call Tone icon and ON or OFF
flashing.
2. Press Channel UP/Down button to select ON or OFF.
3. Press the Call/Enter/Setup button to save this entry
and move to the next Setup mode programming.
The Call Tone icon will show in the Standby mode
when set to ON.
Call Tone Select
This setting will also allow you to transmit a unique
Call Tone alert to identify your radio when you transmit
messages. You can select from one of 10 different
Call Tone signals.
Call Tone Alert
VHF Marine Radio Protocols
Operating Your Radio
18
English
Setup Mode Programming
Active Channel Map Icon
Channel Up/Down Buttons
Squelch Control
Squelch Control filters weak signals and radio frequency (RF)
noise so that you will clearly hear the signals you want.
The Squelch Control on this radio is set through the following
keypad operation.
To Set Squelch Control:
1. With the power On, press and hold Call/Enter/Setup
button to access the Setup menu.
2. Squelch control will be the first menu item to appear.
Press the Channel Up and Channel Down buttons to
set level. The signal level bar graph shows squelch
level while you are in Setup mode on the squelch
adjust function.
3. To tune your squelch, press the Channel Down
button until you hear a hissing sound, then press
and release the Channel Up button until the hissing
stops. This will establish a “Baseline” squelch.
4. By pressing the Channel Up button further, you will
filter weak and medium strength signals. By pressing
Channel Down button, you will receive weaker
signals.
5. Press the Call/Enter/Setup button to save this entry
and move to the next Setup mode programming.
NOTE
If the Squelch is set so that you can hear a continuous
hissing sound, the Memory Scan and Tri-Watch
functions will be blocked.
Squelch Control
Channel Up/Down Buttons
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