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Operating Your Radio
39
Nothing Comes Close to a Cobra
®
38
English
Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
Secondary Icons
Caution Warning
Installation
Customer
Assistance
Operating Your Radio
GMRS Mode Programming
MEMSAMEATIS VOXLOMEDHI
VHF
T
R
A
B
GMRS
X
CIU
GMRS Standby
GMRS Mode Programming
GMRS Mode Programming
The GMRS (General Mobile Radio Service) feature is a landmobile
service available for short-distance, two-way communications in the
USA. You must have a valid FCC license to communicate on these
channels (see page 28).
Start from GMRS Standby mode to begin GMRS Setup
programming. Press and hold the Call/Enter/Setup button for two
(2) seconds to enter the programming mode.
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, push 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 adjust 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.
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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.
MEMSAMEVOX HI
ROG
VHF
GMRS
T
R
X
U
Call/Enter/Setup
CTCSS and DCS Coding Mode
Continuous Tone Controlled Squelch System (CTCSS) and
Digital Coded Squelch (DCS) coding are used in two-way radio
systems. These are sub-audible frequencies or digital tones that
are sent continuously with speech to engage other radios with
this feature. This feature is generally used between talk groups on
shared channels. Radios with the same subcode set will hear your
transmission. Radios with both DCS and CTCSS set to Off or 00 will
be able to hear your transmissions.
To Set CTCSS Code Entry:
1. Display will show CTCSS icon and OFF icon flashing.
NOTE
If CTCSS was previously set to a Code number, display will
show the current GMRS channel and flash the CTCSS
icon and Code number.
2. Codes begin at 00 (OFF) and go to 38, followed by 00, and
return back to 01 again. The last used GMRS channel will
be shown in the large digit display.
NOTE
If CTCSS is On, then DCS will be Off. If DCS is On, then
CTCSS will be Off. The radio does does this automatically.
3. Press Channel Up/Down button to change code number,
or press and hold Channel Up/Down button to rapid
advance (scroll).
4. Press Call/Enter/Setup button to save entry and
move to the next setup programming mode.
MEMSAMEVOX HI
ROG
VHF
GMRS
T
R
X
U
Channel Up/Down Buttons
MEMSAMEVOX HI
ROG
VHF
GMRS
T
R
X
U
Call/Enter/Setup
MEMSAMEATIS VOXLOMEDHI
VHF
T
R
A
B
GMRS
X
CIU
CTCSS Off
Intro Operation Customer
Assistance
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Notice
Main Icons
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Intro Operation Customer
Assistance
Warranty
Notice
Main Icons
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Caution Warning
Installation
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