GMR3740-2CK/2CKHS
GMR3741-2CK/2CKHS
GMR3799-2CK/2CKHS
Note: Camo
pattern not
shown.
CHARGE
*Range may vary depending on environmental and/or topographical conditions.
• 15 GMRS / 7 FRS Channels
• 7 Weather Channels
• 121 Sub Codes
(CTCSS Tone and DCS Code)
• Up to 37 Mile Range*
• Internal VOX Circuitry
• 10 Selectable Call Tone Alerts
• Roger Beep
• Keypad Lock
• Backlit LCD Display
• Headset Jack
• 2
Headset Boom Mics
(GMR3740-2CKHS,
GMR3741-2CKHS and
GMR3799-2CKHS)
1 Antenna
2 PTT (Push-To-Talk) Button
3 Call/Lock Button
4 Menu/Power Key
5 Channel Up/Down Key
6 Weather/Monitor Key
7 Speaker
8 Headset Jack/DC 9V
9 Volume Up/Down Key
10 Microphone
11 Battery Level Meter
12 Receive Indicator
13 Call Indicator
14 Scan Indicator
15 Channel Indicator
16 Hi Power Indicator
17 Low Power Indicator
18 Transmit Indicator
19 Volume Setting Indicator
20 Keypad Lock Indicator
21 VOX Indicator
22 Weather Indicator
23 Sub Code Indicator
24 Charging Contacts
Congratulations on your purchase of a Uniden
GMRS (General Mobile Radio Service) radio.
These lightweight, palm-sized radios are state-of-
the-art devices. Both have many top features. The
GMR3740-2CKHS and GMR3799-2CKHS include
two headset VOX boom mics. Use them at outdoor
and sporting events, to contact family and friends,
hiking, skiing, outdoors, or in a neighborhood watch
for vital communication.
PACKAGE CONTENTS
Your package contains two radios, two rechargeable
NiMH battery packs, one AC adapter, one charging
cradle, two headset boom mics (-2CKHS models
only), two belt clips, 2 carabiner clips and this
reference guide. A NiMH battery pack or 3 AAA
alkaline batteries (not included) powers each unit. To
order the following optional accessories, visit our web
site at www.uniden.com or call 1-800-554-3988 during
regular business hours.
Use only Uniden
accessories.
• NiMH Battery Pack - #BT-1028 or BP-1028
• Charging Cradle - #RC-1287
• Headset Boom Mic - #ZA-133 or ZA-160
• AC Adapter - #AD-0001
• DC Adapter - #DC-1002
• Carabiner Clip - # TSTD0720002
GMRS LICENSE
The radio operates on the General Mobile Radio
Service (GMRS) frequencies when using
Channels 1-7 and channels 15-22. You must
have a GMRS license issued by the Federal
Communications Commission to legally use
these channels. For licensing information and
application forms, visit the FCC online at: www.
fcc.gov/wtb/uls or call the FCC hotline at
1-800-418-3676. If you have any questions, you
can contact the FCC direct at 1-888-225-5322.
No license is required for operation on channels
8-14 or operation on any channel in Canada.
INSTALL THE BATTERY
Each radio uses a supplied NiMH battery pack or
3 AAA alkaline batteries (not included).
To install the NiMH battery pack:
1) Make sure your radio is OFF.
2) Press the tab at the bottom of the battery
compartment door to remove the cover.
3) Install the NiMH battery pack into the battery
compartment. Be certain to follow the
instructions written on the label on the battery
pack. Installing the battery pack incorrectly will
prevent the unit from operating.
USING THE RADIO
• Dual Charging Cradle
with AC Adapter
• Rechargeable NiMH
Battery Packs
• Battery Level Meter
• Channel Monitor
• Channel Scan
• DC 9V Jack
• NOAA Emergency /
Weather Channels
• Camo Pattern
(GMR3799-2CK and
-2CKHS only)
• Belt Clips
• 2 Carabiner Clips
BATTERY LEVEL AND LOW
BATTERY ALERT
This unit has a battery level meter on the display to
indicate the status of the batteries. When the
battery in the unit is low, the battery level meter
icon
flashes. Recharge the NiMH battery
pack immediately or if you are using alkaline
batteries, you must replace the alkaline batteries in
order to continue using the radio.
Warning!
To avoid the risk of personal injury or
property damage from fire or electrical shock, only
use the Uniden accessories specifically designated
for this product.
GMR3740-2CK/2CKHS RADIO
GMR3741-2CK/2CKHS RADIO
GMR3799-2CK/2CKHS RADIO
CHARGING THE RADIO
If you use the rechargeable NiMH battery pack, two
radios can be charged directly or by using the
supplied charging cradle.
USING The RadIo
1) Connect optional DC adapter (#DC-1002) to the
radio DC 9V jack and to a cigarette lighter port.
2) Charge the battery pack for 16 hours until the
battery indicator stops flashing.
USING The ChaRGING CRadle
1) Connect the AC adapter (#AD-0001) to DC 9V
jack and to a standard 120V AC wall outlet.
2) Set the charging cradle on the desk or tabletop,
and place the radio in the charging cradle with
the keypad facing forward.
3) Make sure that the LED illuminates. Charge the
battery pack for 16 hours and remove the radio
from the charging cradle after charging.
Note:
• For charging batteries directly without the cradle,
use only the #DC-1002 Cigarette Lighter Adapter
cord, available from www.Uniden.com. Other
power cords could damage your radio.
• DC 9V jack of the radio is for charging only.
Be sure to install the battery before charging.
• Use only the supplied battery and AC adapter or
approved accessories from Uniden.
• Charge time may vary depending on the battery
life remaining.
• Do not recharge alkaline batteries. Doing so can
create a safety hazard or damage the radio.
• For fastest charging, turn off the radio before
charging.
• The battery must be installed for the unit to
operate, even if the unit is also connected to
external power.
In order to get the most out of your new radio, read
this reference guide completely before attempting to
operate the unit.
TURNING The RadIo oN aNd
adjUSTING The VolUMe
1) Press and hold
MENU/
to turn the radio ON.
Increase the speaker volume by pressing
VOL
▲
. To decrease, press
VOL
▼
.
2) Press and hold
MENU/
again to turn the radio
OFF.
adjUSTING The SoUNd (KeY BeepS)
Your radio emits a beep each time one of the keys
(except for the
PTT
and
CALL/LOCK
) is pressed.
To turn this sound OFF, press and hold
CALL/
LOCK
while turning ON the radio. Repeat this step
to turn the sound ON.
ChooSING a ChaNNel
Your radio has 22 channels and 121 Sub codes you
can use to talk to others. In order to speak to
someone, each of you must be set to the same
channel and Sub code.
To choose a channel:
With the radio in "Normal" operating mode, press the
CH
▲
/
CH
▼
key to increase or decrease the
channel number displayed.
Note:
Channels 1-7 have a typical range of up to 37
miles. Channels 8-14 have a typical range of up to
5 miles. Channels 15-22 have a typical range of up
to 37 miles. You can see which GMRS or FRS
channel is active by the icon. The
hi icon is
displayed while scanning GMRS channels, and the
lo icon is displayed while scanning FRS channels.
TalKING oN YoUR RadIo
To talk to others using the radio:
1) Press and hold the
PTT
button and speak in a
clear, normal voice about 2-3 inches away from
the microphone. While you are transmitting, the
icon appears on the display. To avoid cutting
off the first part of your transmission, pause
slightly after pressing the
PTT
button before you
start talking.
2) When you have finished speaking, release the
PTT
button. You can now receive incoming
calls. While receiving,
displays.
MoNIToR Mode FeaTURe
Your radio allows you to listen for weak signals on
the current channel at the press of a key.
To turn ON Monitor mode:
• Press and hold
WX/MON
for 2 seconds until two
beeps sound. The receiver circuit stays open,
and both noise and weak signals can be heard.
To turn OFF Monitor mode:
• Press and hold
WX/MON
for 2 seconds to return
to "Normal" mode; the
icon stops blinking
and disappears.
adVaNCed FUNCTIoNS (MeNUS)
Use
MENU/
to access your radio's advanced
functions.
Normal
Normal
VOX Level
Call Tone
1-10
OFF, 1-5
Sub Code
Scan
OFF, 1-121
ON/OFF
1) Press
MENU/
to enter the menus.
2) Additional presses of
MENU/
advance you
through the menus until exiting to "Normal"
operating mode.
3) Other methods of exiting the Menu function are:
a. Press and hold
MENU/
again.
b. Press any key except
CH
▲
/
CH
▼
or
VOL
▲
/
VOL
▼
and wait 10 seconds until the unit
returns to “Normal” mode.
Sub Code
Each of the channels 1-22 may have any one of
the codes, OFF, or 1-121 selected. Code
oF
(OFF)
indicates no Sub code selected and your radio can
receive a signal regardless of the code settings of
the transmitting radio.
1) Press
MENU/
to enter
Menu
mode. The
subcode indicator flashes.
2) Press
CH
▲
/
CH
▼
key to increase or
decrease the code number displayed. You can
also select
oF
(OFF) at this stage.
3) Press
MENU/
to exit Menu mode.
4) Press any key other than
CH
▲
/
CH
▼
or
VOL
KeY loCK
To lock the keypad:
1) Press and hold
CALL/LOCK
; displays.
These functions are not affected by Key Lock:
• Volume adjust
• Call tone transmission
• Enter monitor mode
• PTT transmission
• Power off
To unlock the keypad:
Press and hold
CALL/LOCK
again; disappears.
aUToMaTIC poWeR SaVe
Your radio has a circuit designed to dramatically
extend the life of the batteries. If there is no
transmission or an incoming call within 3 seconds,
your radio switches to Power Save mode. The radio
is still able to receive transmissions in this mode.
lCd BaCKlIGhT
The LCD Backlight automatically turns ON when any
key (except the
PTT
button) is pressed. The LCD
display illuminates for 10 seconds before turning
OFF.
RoGeR Beep
Roger Beep is a BEEP that is sent to notify the end of
transmission (both PTT and VOX transmission).
Roger Beep can be heard through the speaker when
both Roger Beep and Key Beep are set to ON. When
Roger Beep is set to ON and Key Beep is set to OFF,
Roger Beep will not be heard from the speaker but it
will be transmitted to your party. When Roger Beep is
set to OFF, Roger Beep will neither be heard nor
transmitted.
To change Roger Beep setting:
Press and hold
VOL
▲
while turning the radio on and
off. If Roger Beep is ON, it will be turned off; if it is
OFF, it will be turned on.
• If battery power is low, you cannot operate the
radio even using external power. Allow the
batteries to charge before using. If you try to
transmit while power is low, the radio will
automatically turn off.
▲
/
VOL
▼
and the radio returns to Idle
mode in 10 seconds.
Scan
Your radio has a channel scan feature that
allows you to easily scan all 22 channels.
When an active channel is detected, the radio
pauses on that channel until the channel is
clear. Then, after a 2 second delay, the radio
continues scanning. Pressing the
PTT
button
while the scan is paused on a channel allows
you to transmit on that channel.
To turn ON channel scan:
1) Press
MENU/
repeatedly until the
scan...
icon and
oF
blink.
2. Press
CH
▲
/
CH
▼
to select Scan mode
and press
MENU/
to start it.
To turn OFF channel scan:
1) Press
MENU/
with the scan setting
oF
.
2) Press any key other than
CH
▲
/
CH
▼
or
VOL
▲
/
VOL
▼
to turn channel scan off in
10 seconds.
Voice Operated Transmission
Your radio is equipped with a user selectable
Voice Operated Transmitter (VOX) that can be
used for automatic voice transmissions. The
VOX feature is designed to be used with or
without a headset with a microphone.
Transmission is initiated by speaking into the
microphone instead of pressing
PTT
.
To select VOX level:
1) Press
MENU/
repeatedly until the
vox
icon and the VOX sensitivity level (
OFF
,
1-5
)
blink.
2) Press
CH
▲
/
CH
▼
to change the VOX
sensitivity levels. Use level 1 for increased
sensitivity to voice in normally quiet
environments, and use a higher level to
reduce undesired activation in very noisy
environments.
Call Tone
Your radio is equipped with 10 selectable call
tones that are transmitted when
CALL/LOCK
is
pressed.
To select a call tone:
1) Press
MENU/
repeatedly until the
CALL
icon and
Call Tone
start to blink on the
display.
2) Press
CH
▲
/
CH
▼
to move through the
available call tones. Each tone will be heard
through the speaker but will not be
transmitted. Cycle through these tones and
stay on the tone you want to select.
3) Exit Call Tone to set the selected tone.
USING A HEADSET
You can use a headset (#ZA-133 ou ZA-160) for
more private communications. To use a headset,
lift the rubber cover from over the headset jack,
then plug in the headset.
Important: Your radio is not weather resistant
when using a headset jack. When you remove the
headset, be sure to fully press the jack cover into
place to restore its weather resistant capability.
USING THE WEATHER RADIO
Your radio can receive weather broadcasts from the
NOAA National Weather Service. While using the
Weather Radio, you are not able to receive GMRS
communications.
1) To turn on the Weather Radio Broadcast mode,
press
WX/MON
. The icon appears.
2) Press
CH
▲
/
CH
▼
to increase or decrease the
number to the desired Weather Channel.
3) To exit the Weather Radio Broadcast mode, press
WX/MON
. The icon disappears.
NOAA Weather Radio Frequency List
Channel 1 162.550 MHz Channel 5 162.450 MHz
Channel 2 162.400 MHz Channel 6 162.500 MHz
Channel 3 162.475 MHz Channel 7 162.525 MHz
Channel 4 162.425 MHz
4) Replace the battery compartment door.
U01UT063AZA(0)
English
