Congratulations on your purchase of the Uniden
GMR1838-2CK (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.
prevent the unit from operating.
4) Replace the battery compartment door.
•
•
Battery must be installed for operation, even from
external power.
1) To enter the Menu, press the menu key.
2) Additional presses of the menu key advances
you through the Menu until exiting to "Normal"
operating mode.
3) Other methods of exiting the Menu function are:
a. Press and hold the key again.
b. Press the PTT, mon, call, scan or chan tone
key
Note: If you exit the setting mode before confirming
your selection by pressing the menu key, the Key
Lock setting will be set to oF (OFF).
GMR1838-2CK
Channel Scan Feature
Your GMR1838-2CK 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.
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.
To unlock the keypad:
1) Press and hold the key to turn the radio OFF.
2) Press and hold the key again to turn the radio
ON. The keypad is unlocked.
BATTERY LEVEL AND LOW
BATTERY ALERT
• 15 GMRS / 7 FRS Channels
• 99 Sub Codes
• Roger Beep
• Battery Charger
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
c. Wait 10 seconds until the unit automatically
returns to “Normal” mode.
(CTCSS Tone and DCS Code) • Battery Level Meter
Automatic Power Save Feature
• Up to 18 Mile Range*
• Internal VOX Circuitry
• 5 Selectable Call Tone Alerts
• Backlit LCD Display
• Channel Monitor
• Channel Scan
• Keypad Lock
USING THE RADIO
Your GMR1838-2CK 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.
PACKAGE CONTENTS
To turn ON channel scan:
Voice Operated Transmission
icon
flashes. Recharge the NiMH battery
In order to get the most out of your new radio, read
this reference guide completely before attempting to
operate the unit.
Your package contains two GMR1838-2CK radios,
two rechargeable NiMH battery packs (#BP40), one
AC adapter (#PS-0007), one charging cradle
(#RC1286), 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
or call 1-800-554-3988 during regular business
hours. Use only Uniden accessories.
• NiMH Battery Pack - #BP40
• Charging Cradle - #RC1286
• Headset - #HS910/HS915/ZA-133
• AC Adapter - #PS-0007
Press the scan key until the scan... icon is
displayed. The channel number on the display
changes as the radio rapidly cycles through the
channels.
Your GMR1838-2CK 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.
pack immediately or if you are using the alkaline
batteries, you must replace the alkaline batteries in
order to continue using the radio.
• DC IN 9V Jack
• Optional Headset Accessories
• Headset Jack
Turning the Radio On and Adjusting the Volume
1) Press and hold the 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
OFF.
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.
To turn OFF channel scan:
LCD Backlight
Press the call, PTT, menu or scan key.
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.
To select the VOX level:
Talking on Your Radio
key again to turn the radio
1) Enter the Menu. Advance through the Menu until
the vox icon appears on the display. The current
level (OFF, 1-5) will be indicated. Level oF
(OFF)
disables VOX, while levels 1-5 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.
To talk to others using the radio:
CHARGING 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
Adjusting the Sound (Key Beeps)
Roger Beep
If you use the rechargeable NiMH battery pack, two
GMR1838-2CK radios can be charged directly or by
using the supplied charging cradle.
Your radio emits a beep each time one of the keys
(except for the PTT 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.
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 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 neither be herad nor transmitted.
*Range may vary depending on environmental and/or topographical conditions.
• DC Adapter - #DC-1002
Charge by Using the Radio
GMR1838-2CK RADIO
1) Connect the optional DC adapter (#DC-1002) to
DC IN 9V jack of the radio and to a cigarette
lighter port.
2) Charge the battery pack for 16 hours until the
battery indicator stops flashing.
Choosing a Channel
GMRS LICENSE
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 be set to the same
channel and Sub code.
icon appears on
The GMR1838-2CK radio operates on the
General Mobile Radio Service (GMRS)
the
display.
Transmitting a Call Tone
To turn ON Roger Beep:
Your GMR1838-2CK radio is equipped with 5
selectable call tones that are transmitted when the
call key is pressed.
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 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.
Using the Charging Cradle
Press and hold the ▲ key while turning ON the radio.
1) Connect the AC adapter (#PS-0007) 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 charging.
To choose a channel:
Monitor Mode Feature
To turn OFF Roger Beep:
Your GMR1838-2CK radio allows you to listen for
weak signals on the current channel at the press of
a key.
With the radio in "Normal" operating mode press the
chan tone key and press the ▲ or ▼ key to
increase or decrease the channel number displayed.
Press and hold the ▲ key while turning ON the radio.
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) is 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.
To turn ON the Monitor Mode:
Note: Channels 1-7 have an typical range of up to
18 miles. Channels 8-14 have an typical range of
up to 5 miles. Channels 15-22 have an typical
range of up to 18 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.
• 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.
Note:
•
For charging batteries directly without the cradle,
use only the #DC-1002 Cigarette Lighter Adapter
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 is pressed.
INSTALL THE BATTERY
To turn OFF Monitor Mode:
Other power cords could damage your radio.
Choosing a Sub Code
Your radio uses a supplied NiMH battery pack or
4 AAA alkaline batteries (not included).
Press mon button to return to "Normal" mode,
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DC IN 9V Jack of the radio is for charge only.
Be sure to install the battery before charge.
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 Antenna
14 Battery Level Meter
2 PTT (Push-To-Talk) Button 15 Receive Indicator
and the
icon stops blinking and disappears.
Key Lock
3 Monitor Button
4 Scan Key
5 Menu Key
16 Call Indicator
17 Scan Indicator
Use only the supplied battery and AC adapter or
approved accessories from Uniden.
To install the NiMH battery pack:
Navigating through the Menu
To access the advanced features of the GMR1838-
2CK, your radio has a Menu function.
To lock the keypad:
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
1) Enter the Menu. Advance through the Menu until
18 Channel Indicator
19 Hi Power Indicator
20 Low Power Indicator
21 Transmit Indicator
22 Volume Setting Indicator
23 Keypad Lock Indicator
24 VOX Indicator
Charge time may vary depending on the battery
life remaining.
6 Channel Tone Key
7 Speaker
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 menu key.
The radio returns to the "Normal" mode.
1) Press chan tone in channel select mode.
The subcode indicator will flash.
Normal
VOX Level
Call Tone
Key Lock
Normal
8 Up/Down Button
9 Headset Jack
10 On/Off Key
11 Call Key
12 Microphone
13 DC IN 9V
Do not recharge alkaline batteries. Doing so can
create a safety hazard or damage the radio.
2) Press the ▲ or ▼ key to increase or decrease
the code number displayed. You can also select
oF (OFF) at this stage.
For fastest charging, turn off the radio before
charging.
1-5
OFF, 1-5
ON-OFF
25 Sub Code Indicator
26 Charging Contacts
3) Exit the Menu.
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