GMR2638-2CK
CHARGE
*Range may vary depending on environmental and/or topographical conditions.
• 15 GMRS / 7 FRS Channels
• 121 Sub Codes
(CTCSS Tone and DCS Code)
• Up to 26 Mile Range*
• Internal VOX Circuitry
• 10 Selectable Call Tone Alerts
• Backlit LCD Display
• Optional Headset Accessories
• Headset Jack
1 Antenna
2 PTT (Push-To-Talk) Button
3 Monitor Button
4 Channel Up/Down Button
5 Call/Lock Button
6 Speaker
7 Headset Jack
8 Menu/Power Button
9 Volume Up/Down Button
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 Sub Code Indicator
23 Charging Contacts
Congratulations on your purchase of the Uniden
GMR2638-2CK (General Mobile Radio Service)
radio. This lightweight, palm-sized, radio is a state-
of-the-art device, equipped with many valuable
features. Use it at sporting events, to stay in
contact with 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 belt clips and this reference guide. You
can operate each unit using the rechargeable NiMH
battery pack or 3 AAA alkaline batteries (not
included). 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
• AC Adapter - #AD-0001
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) Remove the battery compartment door by
pressing the tab at the bottom of the
compartment door, and 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.
4) Replace the battery compartment door.
USING THE RADIO
• Roger Beep
• Battery Charger
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Keypad Lock
• 2 Belt 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 the 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.
GMR2638-2CK 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 ChaRGING CRadle
1) Connect the charging cradle (#RC-1287) 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:
• 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.
• Battery must be installed for operation, even from
external power.
• 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.
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 the
MENU/ key to turn the
radio ON, and increase the speaker volume by
pressing
VOL
▲
. To decrease the volume, press
VOL
▼
.
2) Press and hold the
MENU/ key 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 button and CALL/LOCK key) is
pressed. To turn this sound OFF, press and hold the
CALL/LOCK key 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.
With the radio in "Normal" operating mode press
CH
▲
/
CH
▼
to increase or decrease the channel
number. The channel number blinks. Press the
MENU/ key to set the channel.
Note: Channels 1-7 have an typical range of up to
26 miles. Channels 8-14 have an typical range of
up to 5 miles. Channels 15-22 have an typical
range of up to 26 miles. You can know which GMRS
or FRS channel is active by the icon.
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, the
icon appears on the
display.
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 the Monitor Mode:
• For brief listening, press
MON button. The
icon blinks.
• Press and hold
MON button for 2 seconds until
two beeps sound for continuous listening. The
receiver circuit stays open, letting both the noise
and weak signals to be heard.
To turn OFF Monitor Mode:
• Press
MON button to return to "Normal" mode,
and 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 Menu
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
▲
/
VOL
▼
and the radio returns to Idle mode
in 10 seconds.
Scan Menu
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/ when the scan setting is
oF
.
2) Press any key other than
CH
▲
/
CH
▼
or
VOL
▲
/
VOL
▼
to turn channel scan off in 10
seconds.
Voice Operated Transmission Menu
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 Menu
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.
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:
1) 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.
U01UT062ZZA(0)
English
NoTe: Before using this product, please read the manual.
