Uniden GMR855-2 - Manual

Choosing a Channel

Your radio has 22 channels you can use to talk to
others. In order to speak to someone, each of you
must be set to the same channel.

To choose a channel:

With the radio in "Normal" operating mode press
the

ch/scan

▲

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 8 miles by
pressing the

Power boost

button

.

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.

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
transmission stops automatically, and you will hear
a boost time out error tone.

GMR855-2/GMR855-2CK

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

• Power Boost Button for

Maximum Range

• 15 GMRS / 7 FRS Channels
• Up to 8 Mile Range*
• 5 Selectable Call Tone Alerts
• Backlit LCD Display
• Battery Recharge Circuit
• Roger Beep
• Key Beep on/off

1 Antenna
2 PTT (Push-To-Talk) Button
3 Power boost Button
4 Monitor Key
5 Channel/Scan Up Key
6 Channel/Scan Down Key
7 Speaker
8 Call Key
9 Volume Up Key

10 On/off/select Key
11 Volume Down Key
12 Microphone

13 Battery Level Meter
14 Receive Indicator
15 Scan Indicator
16 Channel Indicator
17 Power Boost Indicator
18 Volume Setting Indicator
19 GMRS/FRS Indicator
20 Transmit Indicator
21 Call Indicator
22 Keypad Lock Indicator
23 Charging LED’s

Congratulations on your purchase of the Uniden
GMR855-2/GMR855-2CK (General Mobile Radio
Service) radios. These products are lightweight,
palm-sized radios. Use them at sporting events to
stay in contact with family and friends, hiking,
skiing, outdoors, or in a neighborhood watch for
vital communication. These compact, state-of-the-
art devices are equipped with many features.

PACKAGE CONTENTS

Your package contains 2 radios, 2 reference guides
including the product registration card, and 2 Belt
Clips. The GMRS855-2CK also contents NiMH
Battery Packs, Dual Drop-in Recharging Cradle and
AC adapter. The following optional accessories may
be purchased from your participating Uniden dealer
or call1-800-554-3988 or visit us on the web at
www.uniden.com.

Use only Uniden accessories.

• NiMH Battery Pack - #BP38

• Recharging Cradle - #RC6348

• AC Adapter - #AC6248

FCC GMRS LICENSE

The GMR855-2/GMR855-2CK radio operates on
the General Mobile Radio Service (GMRS)
frequencies which require a Federal
Communication Commission license to operate.
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.

INSTALL THE BATTERIES

Your GMR855-2/GMR855-2CK radio uses 4 AAA
alkaline batteries or NiMH battery pack (included in
GMR855-2CK only). If alkaline batteries are used,
we recommend using high quality alkaline batteries.

To install the 4 AAA alkaline batteries or Ni-MH
battery:

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

pressing up the tab at the bottom of the
compartment door allowing the door to be
removed.

3) Install 4 AAA alkaline batteries (not included)

into the battery compartment. Be certain to
follow the + and – symbols in the compartment.
If you use Ni-MH battery, install the battey
making the label faced up. Installing the batteries
incorrectly will prevent the unit from operating.

4) Replace the battery compartment door.

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 unit

ON, and increase the speaker volume by
pressing the volume

▲

key. To decrease the

volume, press the volume

▼

key.

2) Press and hold the

sel/

key again to turn the

unit OFF.

Adjusting the Sound (Key Beeps)

Your radio emits a beep each time one of the
buttons or keys (except for the

PTT

and

Power

boost

button, and

call

key) are pressed. To turn this

sound OFF, press and hold

call

key while turning ON

the radio. Repeat this step to turn the sound ON.

• Battery Level Meter
• Channel Monitor
• Channel Scan
• Keypad Lock
• Belt Clip
• NiMH Battery Pack and

Charger
(GMR855-2CK only)

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
batteries in the unit are very low, the battery level
meter icon

will flash. Replace the alkaline

batteries immediately or if you are using the NiMH
battery pack, you must recharge the battery 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

PTT

or

Power boost

button, or

mon

,

volume

▲

/

▼

, and

call

key.

c. Wait 10 seconds until the unit automatically

returns to “Normal” mode.

Transmitting a Call Tone

Your GMR855-2/GMR855-2CK 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 (

-

) will be

indicated.

2) Press the

ch/scan

▲

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.

Keypad 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 (

OFF

) blinks on the display.

2) To switch the key Lock mode from

OFF

to

ON

,

press the

ch/scan

▲

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

OFF

.

To Unlock the keypad:

1) Press and hold the

sel/

key to turn the unit

OFF.

2) Press and hold the

sel/

key again to turn the

unit ON. The keypad is unlocked.

Channel Scan Feature

Your GMR855-2/GMR855-2CK radio has a channel
Scan feature that allows you to easily Scan all 22
channels. When an active channel is detected, the
unit will pause on that channel until the channel is
clear. Then after a 2 second delay, the unit will
continue scanning. Pressing the

PTT

or

Power

boost

button while the Scan is paused on a

channel will allow you to transmit on that channel.

To turn ON channel scanning:

Press and hold either the

ch/scan

▲

or

▼

key

until the

scan

icon is displayed. The channel

number on the display will change as the radio
rapidly cycles through the channels.

Normal

Normal

Call Tone

Key Lock

1-5

ON-OFF

GMR855-2/GMR855-2CK RADIO

Automatic Power Save Feature

Your GMR855-2/GMR855-2CK 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 for the

PTT

and

Power boost

button) is pressed. The LCD display will
illuminate for 10 seconds before turning OFF.

Monitor Mode Feature

Your GMR855-2/GMR855-2CK 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 & weak
signals.

To turn OFF monitor mode:

• Press

mon

to return to "Normal" mode, and the

icon stops blinking.

Roger Beep

Roger Beep is a BEEP that is sent to notify the end
of transmission (PTT transmission.) Roger Beep
can be heard through the speaker when Key Beep
is on. If key beep is turned off, Roger Beep will not
be heard from the speaker.

To turn ON Roger Beep:

Press and hold the

ch/scan

▲

key while turning

ON the radio.

To turn OFF Roger Beep:

Press and hold the

ch/scan

▲

key while turning

ON the radio.

Navigating through the Menu

To access the advanced features of the GMR855-2
/GMR855-2CK, your radio has a Menu function.

USING THE CHARGING CRADLE

If you use the rechargeable NiMH battery pack, two
GRM855-2CK radios can be charged by using the
charging cradle.

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 (# AC6248) 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's will remain on as

long as the radios are left in the charger.

To turn OFF channel scanning:

Press the

sel/

key,

call

key,

Power boost

button

or

PTT

button.

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