Uniden EcoTerra GMR1088-2CK User's Manual

Uniden Radio User's Manual - EcoTerra GMR1088-2CK.
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Choosing a Channel
Your radio has 22 channels and 99 Sub codes you
can use to talk to others. In order to speak to
someone, each of you must set to the same 
channel and Sub code.

To choose a channel:
With the radio in "Normal" operating mode press
the ch/scan key and press the 

▲ or ▼ key to

increase or decrease the channel number 
displayed.

Note: FRS channels 8-14 have an expectancy
range of up to 3 miles. GMRS channels 1-7, 15-22
have an expectancy range of up to 10 miles by
pressing the Power boost button. You can know
which GMRS or FRS channel is active by the icon.
The 

icon indicates GMRS channel, and the 

icon indicates FRS channel.

Choosing a Sub Code
Each of the channels 1-22 may have any one of
the codes, OFF or 1-99 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) Enter the Menu. The Sub code on the LCD 

display will appear.

2) Press the 

▲ or ▼ key to increase or decrease

the code number displayed. You can also select
oF (OFF) at this stage.

3) Exit the Menu.

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 will appear 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 are finished speaking, release the PTT

button. You can now receive incoming calls. While
receiving, the 

icon will appear on the display.

GMR1088-2CK

sel/

call

ch/

scan

mon

wx/

alert

vo

l/c

h

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

• 15 GMRS / 7 FRS Channels
• 99 Sub Codes 

(CTCSS Tone and DCS Code)

• Up to 10 Mile Range*
• Internal VOX Circuitry
• Silent Call
• 5 Selectable Call 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

Call Key

5

WX/Alert Key

6

Channel/Scan Key

7

Speaker

8

Headset Jack

9

Volume/ch Up Key

10 Volume/ch Down Key
11 On/Off/Select Key
12 Monitor Key
13 Microphone
14 Battery Level Meter
15 Receive Indicator

16 Boost Indicator
17 Call Indicator
18 Scan Indicator
19 Channel Indicator
20 Alert Indicator
21 Weather Indicator
22 Transmit Indicator
23 Keypad Lock Indicator
24 Volume Setting Indicator
25 VOX Indicator
26 GMRS/FRS Indicator
27 Silent Indicator
28 Sub Code Indicator
29 Charging contacts
30 Charging LED

Congratulations on your purchase of the Uniden
GMR1088-2CK (General Mobile Radio Service)
radio. This product is a lightweight, palm-sized
radio. Use it at sporting events to stay in contact
with family and friends, hiking, skiing, outdoors, or
in a neighborhood watch for vital communication.
This compact, state-of-the-art device is equipped
with many features.

PACKAGE CONTENTS

Your package contains two GMR1088 radios, two
rechargeable NiMH battery packs (#BP38), two AC
adapters (#AD-0001), two Charging cradles
(#RC6489), two belt clips and this reference guide.
You may operate the unit using the rechargeable
NiMH battery pack or 4 AAA alkaline batteries 
(not included). To order headsets, replacement 
batteries, or other accessories, visit our website @
www.uniden.com or call 1-800-554-3988, Mon-Fri, 
8 a.m. to 5 p.m. CST. Use only Uniden accessories.

•  NiMH Battery Pack - #BP38

•  Charging Cradle - #RC6489

•  Headset - #HS2467

GMRS LICENSE

The GMR1088-2CK operates on General Mobile
Radio Service (GMRS) frequencies when using
Channels 1-7 and 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 GMR1088-2CK radio uses the NiMH battery
pack or 4 AAA alkaline batteries (not included).

To install the NiMH battery pack:

1) Make sure your radio is OFF.
2) Release the battery cover clip, then remove the

battery cover.

3) Install the NiMH battery pack into the battery

compartment. Be certain to follow the instruction
written on the label on the battery pack.
Installing the battery pack incorrectly will prevent
the unit from operating.

USING THE RADIO

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 sel/

key to turn the radio ON,

and increase the speaker volume by pressing the 

key. To decrease the volume, press the 

▼ key.

2) Press and hold the sel/

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 PTTPower boost button, and call
key) is pressed.
To turn this sound OFF, press and hold the call key while
turning ON the radio. Repeat this step to turn the sound ON.

Navigating through the Menu
To access the advanced features of the 
GMR1088-2CK, your radio has a Menu function.

• Power Boost Button for 

Maximum Range

• Battery Charger
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Keypad Lock
• NOAA Emergency / 

Weather Channels

• Emergency Weather Alert

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 

will flash.

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.

1) To enter the Menu, press the sel/

key.

2) Additional presses of the sel/

key will

advance you through the Menu until exiting to
"Normal" operating mode.

3) Other methods of exiting the Menu function are:

a. Press and hold the sel/

key again.

b. Press the PTTPower boost button, moncall,

wx/alert, or ch/scan key

c. Wait 10 seconds until the unit automatically

returns to “Normal” mode.

Note: When you press the Power boost button,
boost and 

icon appear on the display. The

radio will transmit Maximum power when a GMRS
channel is selected. After one minute past when
the boost transmission is established, the transmis-
sion stops automatically, and you will hear a boost
time out error tone.

Voice Operated Transmission
Your GMR1088-2CK 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 a headset
with a microphone. Transmission is initiated by
speaking into the remote microphone instead of
pushing the PTT button.

To select the VOX level:
1) Enter the Menu. Advance through the Menu until

the vox icon appears on the display. The current
level (OFF, 1-3) will be indicated. Level oF (OFF)
disables VOX, while levels 1-3 set the sensitivity
of the VOX circuit.

2) Press either the 

▲ or ▼ key to 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.

3) Exit the Menu.

Transmitting a Call Tone
Your GMR1088-2CK radio is equipped with 5 
selectable call tones that will be transmitted when
the call key is pressed.

To select a call tone:
1) Enter the Menu. Advance through the Menu until

the call icon is shown on the display. The current
call tone number (1-5) will be indicated.

2) Press the 

▲ or ▼ key to increase or decrease

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

3) Exit the Menu.

To transmit the selected call tone, press the call
key. The selected tone will automatically be 
transmitted for a fixed length of time. Call Tone will
be cancelled when the PTT button or Power boost
button is pressed.

Channel Scan Feature
Your GMR1088-2CK radio has a channel scan 
feature that allows you to easily scan all 22 
channels. When an active channel is detected, the
radio will pause on that channel until the channel is
clear. Then after a 2 second delay, the radio will
continue scanning. Pressing the PTT button or
Power boost button while the scan is paused on a
channel will allow you to transmit on that channel.

To turn ON channel scan:
Press and hold the ch/scan key until the scan...
icon is displayed. The channel number on the dis-

Normal

Key Lock

ON-OFF

ON-OFF

Silent Mode

Call Tone

1-5

VOX Level

SUB CODE

Normal

OFF, 1-99

OFF, 1-3

GMR1088 RADIO

USING THE CHARGING CRADLE

If you use the rechargeable NiMH battery pack, two
GMR1088-2CK radios can be charged by using the
charging cradles.
Make sure to turn the radio OFF before placing
the radio in the charging cradle. Otherwise the
battery level meter icon won’t indicate properly.

1) Connect the AC adapter (# AD-0001) to DC IN

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 charge.

Note: The charge indicator LED will remain on as
long as the radios are left in the charger.

play will change as the radio rapidly cycles through
the channels.

To turn OFF channel scan:
Press the sel/

callPower boost button, PTT,

wx/alert key, or press and hold the ch/scan key for
2 seconds.

Silent Call Mode
When you turn on the silent mode, all incoming
calls are muted: the radio blinks the display 
backlight and call icon to alert you to an incoming
call. If you do not respond to the call within 5 
seconds, the backlight turns off, and the call icon
will continuous blink until there is no signal. If the
incoming call end in 5 seconds, the call icon 
disappears from the display. 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 silent indicator appears on the display. The 
current Silent mode status (OFF, ON) blinks on
the display.

2) To switch the Silent mode from the oF (OFF) to

on (ON), press the 

▲ key.

3) Exit the Menu.

Note: To prevent unwanted silent alerts, be sure to
use a Sub 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. However, the (silent indi-
cator) icon still appears.

Key Lock
To lock the keypad:
1) Enter the Menu. Advance through the Menu until

the 

icon appears on the display. The current

Key Lock status oF (OFF) blinks on the display.

2) To switch the Key Lock mode from oF (OFF) to

on, press the 

▲ key.

3) To confirm the setting, press the sel/

key.

The radio returns to the "Normal" mode.

Note: If you exit the setting mode before confirming
your selection by pressing the sel/

key, the key

Lock setting will be set to oF (OFF).

To unlock the keypad:
1) Press and hold the sel/

key to turn the radio

OFF.

2) Press and hold the sel/

key again to turn the

radio ON. The keypad is unlocked.

Automatic Power Save Feature
Your GMR1088-2CK 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 will automatically turn ON when
any key (except the PTT button and Power boost
button) is pressed. The LCD display will illuminate
for 10 seconds before turning OFF.

Monitor Mode Feature
Your GMR1088-2CK radio allows you to listen for
weak signals on the current channel at the press of a
key.

To turn ON the Monitor Mode:
• Press mon for brief listening, the 

icon will

blink.

• Press and hold mon for 2 seconds for 

continuous listening. The receiver circuit will stay
open, and letting in both the noise and weak 
signals.

To turn OFF Monitor Mode:

Press mon to return to "Normal" mode, and the

icon stop blinking.

Roger Beep
Roger Beep is a BEEP that is sent to notify the end
of transmission (PTT, Power boost, and VOX 
transmission). Roger Beep can be heard through
the speaker when key beep is on. Roger Beep is
transmitted even if key beep is turned off. However,
Roger Beep will not be heard from the speaker.

To turn ON Roger Beep:
Press and hold the 

▲ key while turning ON the

radio.

To turn OFF Roger Beep:
Press and hold the 

▲ key while turning ON the

radio.

4) Align the battery cover tabs with the GMR1088

tab holes then replace the cover clip.

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