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GMR2889-2CK

*Range may vary depending on environmental and/or topographical conditions.

• 15 GMRS / 7 FRS Channels
• 142 Privacy Codes (CTCSS Tone 

and DCS Code)

• Up to 28 Mile Range*
• Direct Call
• 143 Group Codes
• Silent Mode
• Internal VOX Circuitry
• 10 Selectable Call/Ring Tone Alerts
• Backlit LCD Display
• Optional Headset Accessories
• Headset Jack
• Roger Beep

1 Antenna
2 PTT (Push-To-Talk) Button
3 Power Boost Button
4 Weather/Alert Key
5 D-call Key
6 Menu/Group Key
7 Speaker
8 Volume Setting Nob
9 Up/Down Button

10 Headset Jack
11 Channel Tone/Scan Key
12 Monitor Key

13 Microphone
14 DC IN 9V
15 Channel Indicator
16 Sub Code Indicator
17 Alert Indicator
18 Receive Indicator
19 Miss Indicator
20 Battery Level Indicator
21 VOX Indicator
22 Call Indicator
23 Charging Contacts

Congratulations on your purchase of the Uniden
GMR2889-2CK (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 (#BT-1013), one AC adapter
(#AD-314), one charging cradle (#RC1281), two belt
clips and this reference guide. You can operate the
unit using the rechargeable NiMH battery pack or 4
AAA alkaline batteries (not included).
To order the following optional accessories, visit our
web site @www.uniden.com or call 1-800-554-3988
during business hours.

Use only Uniden accessories.

•  NiMH Battery Pack - #BT-1013
•  Charging Cradle - #RC1281
•  VOX Headset - #HS910/HS915/ZA-133
•  AC Adapter - #AD-314
•  DC Adapter - #DC-1002

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

Your radio uses a supplied NiMH battery pack or 4
AAA alkaline batteries (not included).

To install the NiMH battery pack:

1) Make sure the radio is off.
2) Remove the battery compartment door by

pressing the tab at the bottom of the
compartment door, and remove the cover.

USING THE RADIO

SETTING UP GROUP MODE

USING THE RADIO BATTERY

LEVEL AND LOW BATTERY ALERT

This radio has a battery level meter that indicates
the status of the batteries. When the battery level is
low, 

BATT

appears and the battery level meter icon

flashes. Recharge the NiMH battery pack

immediately or, if you are using the alkaline
batteries, 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.

GMR2889-2CK 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.

Charge by Using the Radio

1) Connect the DC adapter’s plug to the radios DC

IN 9V jack  and plug other end into your vehicle’s
accessory power outlet.

2) Charge the battery pack for 16 hours until the 

battery indicator stops flashing.

Using the Charging Cradle

1) Connect the adapter's plug to DC IN 9V jack of

the charging cradle and plug the other end into
an AC 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
code, available from WWW.Uniden.com.
Other power cords could damage your radio.

• Use only the supplied battery and AC adapter or

approved DC adapter from Uniden.

• Charge time may vary depending on the battery

life remaining.

3) Put the NiMH battery pack in the battery

compartment applying the battery contacts to
the lower charge contacts. Be sure to follow the
instructions written on the battery pack’s label.
Installing the battery pack incorrectly will prevent
the unit from operating.

4) Replace the battery compartment door.

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) Rotate 

vol/off

clockwise until it clicks, and set

volume to a comfortable listening level.

2) To turn off the radio, rotate 

vol/off

counterclockwise until it clicks.

Adjusting the Sound (Key Beeps)

Your radio sounds a beep each time you press a
key (except for 

PTT

and 

Power boost

).

To turn this sound off, press and hold 

d-call

while

turning on the radio. Repeat this step to turn the
sound on.

Choosing a Channel

Your radio has 22 channels and 142 Privacy codes
you can use to talk to others. In order to speak to
someone, both your radios must be set to the same
channel and Privacy code.

To choose a channel:

Press 

ch tone/scn

, then press 

or 

to increase

or decrease the channel number displayed.

Note:

Channels 1-7 and 15-22 have a typical range

of up to 28 miles by pressing the 

Power Boost

button.

HI

is displayed when you select a GMRS

channel, and 

LO

is displayed when you select a

FRS channels.

Warning!

The range of channels 1-7 and 15-22 can

be boosted only when you use NiMH batteries.
When you press 

Power boost

while using alkaline

batteries, the range is not boosted.

• 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.

• Batteries must be installed for operation, even

from external power.

• If battery power is low, you cannot operate the

radio even using external power. Let the
batteries charge before using. If you try to
transmit while power is low, the radio
automatically turns off.

In order to use Group Mode you need to initialize a
couple of settings in your radio:

Set the radio to Group Mode

Set a Group Code

Set a Ring Tone

Set a Unit Number

Set a "Nickname"

Setting the Radio to Group Mode

To set the radio to Group Mode, which enables
Direct Call, Auto Channel Change and All Call,
press and hold 

menu/grp

for 2 seconds. The radio

displays 

oF GRUP

. Press 

to display 

on GRUP

,

then press 

menu/grp

to advance to setting the

Group Code.

Note:

In group mode, you cannot receive

transmissions from other radios unless they are
also set to the same channel and group code.

Setting the Group Code

Set the group code for your radio group from 0-142.
Everyone in your group must select the same
group code in order to communicate with each
other.

1) Press and hold 

menu/grp

for 2 seconds. The

radio displays 

on GRUP

.

2) Tap 

menu/grp

. The radio displays 

Gnnn

(

n

is a

number). Press 

or 

to select the group

number.

3) Press 

PTT

or 

Power boost

to return to normal

operation, or press 

menu/grp

to continue to the

next section.

Setting the Ring Tone

This setting selects the tone you hear when
someone places a direct call to you.

1) Press and hold 

menu/grp

for 2 seconds, then

tap 

menu/grp

two times until the radio displays

n RING

.

2) Press 

or 

to select the desired ring sound.

With each press, you hear a sample of the
selected tone.

3) Press 

PTT

or 

Power boost

to return to normal

operation, or press 

menu/grp

to continue to the

next section.

Setting the Unit Number

Each radio in your group needs to be set to a
unique unit number, from 1-16.

1) Press and hold 

menu/grp

for 2 seconds, then

tap 

menu/grp

three times until the radio

displays 

n - - - -

(or your current nickname).

2) Press 

or 

to select the desired unit number.

3) Press 

menu/grp

to continue to the next section.

Setting Your  Nickname

Your nickname appears on other units’ displays
when you make a All Call or direct call. This is also
the name that appears on other radio displays
when someone wants to make a direct call to you.
When no nickname is set, the unit number appears.

1) Press and hold 

menu/grp

for 2 seconds, then

tap 

menu/grp

four times until the radio displays

n - - - -

(or your current nickname) with the first

place in the nickname flashing.

2) Press 

or 

to select the letter, then 

ch

tone/scn

to advance to the next letter until you

have entered your nickname.

3) Press 

menu/grp

to confirm the setting and exit

the group settings menu.

Using Group Mode

Group mode lets you make direct calls to other
people in your group without alerting the entire
group and also lets you quickly change everyone in
your group to another channel from a single radio.
Before using group mode, follow the instructions in
"Setting Up Group Mode" on every radio in your
group. Then, to record the unit ID and everyone’s
nickname in every radio, send a call to "All" from
each radio one time (see "Sending a Direct Call").

Sending a Direct Call

Direct Call lets you call everyone in your group at
once, or call a single person in your group without
anyone else in the group knowing. It is like a
"speed dial" directly to the person(s) you want to
talk to.

To call everyone in your group, press 

d-call

in

group mode. The radio flashes 

ALL

. Then, press 

d-call

again. Everyone in your group receives a call

"chirp" for about 3 seconds. When the chirp ends,
begin your conversation.

Note:

When you make a direct call to "all," your

radio also sends out your nickname or ID so that it
will show up in the call list for everyone in your
group.

To call one person in your group, without having
other people know, press 

d-call

in group mode.

Then, use 

or 

to select the person you want to

call and press 

d-call

again. Your radio sounds

tones for 3 seconds as it sends the call. When the
selected person answers, you can begin your
conversation. You can silence the call tones at any
time by pressing 

PTT

or 

Power boost

.

Your conversation remains private between you and
the person you called until 15 seconds after your
last conversation. Then, your radio automatically
exits private mode.

USING THE RADIO IN STANDARD MODE

Use the radio in standard (not group) mode when
you need to be able to communicate with radios
that do not have the group feature.

Choosing a Privacy Code

You can select a Privacy Code from 1-142 for each
channel.

oFF

(OFF) indicates no Privacy code

selected and your radio can receive a signal
regardless of the code settings of the transmitting
radio.

1) Press 

ch tone/scn

twice. The Privacy code

indicator flashes.

2) Press 

or 

to increase or decrease the

code. You can also select 

oFF

.

3) Press 

ch tone/scn

again.

Note:

Only tones 1-38 are standard across radio

brands. Other settings might differ from brand to
brand. See the specifications for the specific tones
used for each setting.

Channel Scan Feature

Your radio has a channel scan feature that lets you
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 resumes scanning.
Pressing 

PTT

or 

Power boost

while the scan is

paused on a channel lets you transmit on that
channel.

To turn on channel scan:

Press and hold 

ch tone/scn

until 

SCAN

appears.

The channel number changes as the radio rapidly
cycles through the channels.

To turn off channel scan:

Press 

d-call

PTT

Power boost

wx/alert

or

menu/grp

, or press and hold 

ch tone/scn

for 2

seconds.

Talking on Your Radio

To talk to others using the radio:

1) Press and hold 

PTT

or 

Power boost

and speak

in a clear, normal voice about 2-3 inches away
from the microphone. While you transmit, 

TXHI

or 

TXLO

appears on the display according to

the type of channel. To avoid cutting off the first
part of your transmission, pause slightly after
pressing 

PTT

or 

Power boost

before you start

talking.

2) When you finish speaking, release 

PTT

or

Power boost

. You can now receive incoming

calls. While receiving, 

rx

appears on the display.

Note:

When you press 

Power boost

BOOS

appear on the display. The radio transmits at
maximum power when a GMRS channel is
selected. If 

Power boost

is continuously pressed, 

1 minute after you start pressing 

Power boost

the

transmission stops and you hear a boost timeout
error tone.

Monitor Mode Feature

Your radio lets you 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

.

MON

appears

and 

rx

flashes.

Press and hold 

mon

for 2 seconds until two

beeps sound for continuous listening. The
receiver circuit stays open, so you hear both the
noise and weak signals.

To turn off Monitor Mode:

Press 

mon

to return to the previous mode.

MON

and 

rx

disappear.

Navigating through the Normal Menu

To access the advanced features of your radio has
a Menu function.

1) To enter the menu, press 

menu/grp

.

2) Additional presses of 

menu/grp

advances you

through the menu. After the last menu item, the
radio exits to the previous mode.

3) Other ways to exit the Menu function are:

a. Press 

PTT

Power boost

mon

d-call

,

wx/alert

, or 

ch tone/scn

.

b. Wait 10 seconds until the radio automatically

returns to the previous mode.

Voice Operated Transmission

Your radio has a user selectable Voice Operated
Transmitter (VOX) that can be used for automatic
voice transmissions. The VOX feature is designed
to be used with a headset with a microphone.
Transmission is starts when you speak into the
microphone instead of pushing the 

PTT

and 

Power

boost

button.

To select the VOX level:

1) Enter the menu.

VOX

appears and the current

setting flashes. The current level (OFF, 1-5)
flashes. Level 

oF

(OFF) disables VOX, while

levels 1-5 set the sensitivity of the VOX circuit.

2) Press either 

or 

to set the desired VOX

sensitivity level. 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.

Transmitting a Call Tone

Your radio is equipped with 10 selectable call tones
that are transmitted when you press 

d-call

in

standard mode.

To select a call tone:

1) Enter the menu. Advance through the menu until

CALL

appears. The current call tone number 

(1-10) flashes.

2) Press 

or 

to increase or decrease the

number to the desired call tone. Each tone will
be heard through the speaker.

To transmit the selected call tone, press 

d-call

. The

selected tone is transmitted for a fixed length of
time. Call Tone is cancelled if you press 

PTT

or

Power boost

.

Key Lock

VOX Level

Call Tone

Silent Mode

1-10

OFF, 1-5

ON-OFF

ON-OFF

• Power Boost Button for 

Maximum Range

• All Call
• Auto Channel Change Call
• Battery Charger
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Group Scan
• Keypad Lock
• NOAA Emergency /

Weather Channels

• Emergency Weather Alert
• DC IN 9V Jack

Automatically Changing Channels

Auto Channel Change lets you easily coordinate a
channel change for everyone in your group. You
might want to do this when you find you are getting
a lot of interference on your current channel. Or,
you can use this feature to change from a low-
power channel (8-14) to one of the high-powered
channels (1-7, 15-22) if you need more range (or to
a low-power channel if you need longer battery
life).

To start an auto channel change, on any radio in
the group tap 

ch tone/scn

twice. The current

channel and 

CHCX

appears. Use 

or 

to select

the target channel. You can check whether the
selected channel is clear. Then press 

d-call

.

Your radio chirps for about 10 seconds while it
sends out the channel change signal. As each
radio receives the channel change signal, it chirps
once, then changes to the new channel.

To ensure all radios make it to the new channel, we
recommend you:

Make sure you are in an open environment,
where the radio will get the best range.

Optimize range during the channel change
signal by raising the radio over your head to give
the best possible height.

Do a "roll call" on the new channel after the
move to be sure no one was left behind. If you
missed someone, return to the previous channel
and issue the signal again.

Setting Silent Mode

When you turn on the silent mode, all incoming calls
are muted: the radio blinks the display backlight, the
channel indicator, 

SLNT

and 

call

to alert you to an

incoming call. If you do not respond to the call within
15 seconds, the backlight turns off, and the 

call

will

blink until there is no signal. Silent mode is disabled
for 15 seconds when you transmit, receive, or press
any other button.

To set the silent mode:

1) Enter the menu. Advance through the menu until

the 

SLNT

appears. The current setting flashes.

2) Press 

to display 

on SLNT

.

Note:

To prevent unwanted silent alerts, be sure to

use a Privacy code or group code whenever you use
the Silent mode feature.
You can hear the received voice when you turn on
channel scan and an active channel is detected
even during silent mode.

Missed Call Alerts

If you receive an incoming call while silent mode is
on and do not respond, the radio will turn on the
Missed Call icon. If you are using the Group Mode,
the radio will also indicate the person who made the
call.

Key Lock

To lock the keypad:

1) Enter the menu. Advance through the menu until

LOCK

appears. The radio displays 

oF LOCK

.

2) To switch Key Lock from 

oF

(OFF) to 

on

(ON),

press 

.

3) To confirm the setting, press 

menu/grp

. The

radio returns to the current mode.

Note:

If you exit the setting mode before confirming

your selection by pressing 

menu/grp

, Key Lock is

set to 

oF

(OFF).

To unlock the keypad:

1) Turn off the radio by rotating 

vol/off

counterclockwise until it clicks.

2) Turn on the radio again by rotating 

vol/off

clockwise until it clicks. The keypad is unlocked.

Automatic Power Save Feature

Your radio has a unique circuit designed to
dramatically extend the life of the batteries. If there
is no transmission nor an incoming call within 3
seconds, your radio switches to the 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

and 

Power boost

button) is

pressed. The LCD remains lit for 10 seconds before
turning off.

UT038ZH_GMR2889-2CK_0115  1/15/08  4:24 PM  Page 1

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