Congratulations on your purchase of the Uniden
GMR1438 Series (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.
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
To turn ON channel scan:
Voice Operated Transmission
Automatic Power Save Feature
USING THE RADIO
GMR1438-2
GMR1438-2CK
Your GMR1438 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.
Your GMR1438 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.
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.
In order to get the most out of your new radio, read
this reference guide completely before attempting to
operate the unit.
instructions written on the label on the battery
pack. Installing the battery pack incorrectly will
prevent the unit from operating.
Turning the Radio On and Adjusting the Volume
To turn OFF channel scan:
• 15 GMRS / 7 FRS Channels
• 99 Sub Codes
(CTCSS Tone and DCS Code) • Battery Level Meter
• Roger Beep
1) Press and hold the key to turn the radio ON,
and increase the speaker volume by pressing the
• Battery Charger
Press the call, PTT, menu or scan key.
4) Replace the battery compartment door.
LCD Backlight
To select the VOX level:
L key. To decrease the volume, press the M key.
2) Press and hold the
OFF.
Talking on Your Radio
• Up to 14 Mile Range*
• Internal VOX Circuitry
• 5 Selectable Call Tone Alerts
• Backlit LCD Display
• Channel Monitor
• Channel Scan
• Keypad Lock
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.
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 L or M key to the desired VOX
sensitivity level. Use level 1 for increased
sensitivity to voice in normally quiet
PACKAGE CONTENTS
To talk to others using the radio:
Depending on the model configuration, your
package should include:
BATTERY LEVEL AND
LOW BATTERY ALERT
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
display.
Adjusting the Sound (Key Beeps)
Roger Beep
• Optional Headset Accessories
• Headset Jack
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.
GMR1438-2
Two GMR1438 Radios with Belt Clips
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
GMR1438-2CK
icon
flashes. Recharge the NiMH battery
environments, and use a higher level to reduce
undesired activation in very noisy environments.
Two GMR1438 Radios with Belt Clips
One Dual Charging Cradle (#RC1032)
Two Rechargeable Batteries (BP40)
One AC Adapter (AD-0001)
pack immediately or if you are using the alkaline
batteries, you must replace the alkaline batteries in
order to continue using the radio.
Choosing a Channel
Transmitting a Call Tone
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
Your GMR1438 radio is equipped with 5 selectable
call tones that are transmitted when the call key is
pressed.
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 ON Roger Beep:
To order the following optional accessories, visit our
during regular business hours. Use only Uniden
accessories.
Monitor Mode Feature
*Range may vary depending on environmental and/or topographical conditions.
Press and hold the L key while turning ON the radio.
Your GMR1438 radio allows you to listen for weak
signals on the current channel at the press of a
key.
To choose a channel:
To select a call tone:
To turn OFF Roger Beep:
With the radio in "Normal" operating mode press the
chan tone key and press the L or M key to
increase or decrease the channel number displayed.
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 L or M key to increase or decrease
the number to the desired call tone. Each tone
will be heard through the speaker.
GMR1438 RADIO
Press and hold the L key while turning ON the radio.
• NiMH Battery Pack - #BP40
• Charging Cradle - #RC1032
• Headset - #HS910/HS915/ZA-133
• AC Adapter (AD-0001)
To turn ON the Monitor Mode:
CHARGING THE RADIO
• 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: Channels 1-7 have an typical range of up to
14 miles. Channels 8-14 have an typical range of up
to 5 miles. Channels 15-22 have an typical range of
up to 14 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.
GMR1438-2CK includes charging cradle and
rechargeable battery packs. Follow these instruc-
tions to recharge the radios in a 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.
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.
GMRS LICENSE
To turn OFF Monitor Mode:
The GMR1438 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:
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.
Press mon button to return to "Normal" mode,
and the
Note: GMR1438-2 does not include rechargeable
batteries or charger.
Choosing a Sub Code
icon stops blinking and disappears.
Key Lock
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.
To lock the keypad:
Navigating through the Menu
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.
To access the advanced features of the GMR1438,
your radio has a Menu function.
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 L key.
3) To confirm the setting, press the menu key.
The radio returns to the "Normal" mode.
Normal
VOX Level
Call Tone
Key Lock
Normal
1) Press chan tone in channel select mode.
The subcode indicator will flash.
2) Press the L or M key to increase or decrease
the code number displayed. You can also select
oF (OFF) at this stage.
1-5
OFF, 1-5
ON-OFF
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).
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.
Note: The charge indicator LEDs will remain on as
long as the radios are left in the charger.
1 Antenna
14 Receive Indicator
15 Call Indicator
16 Scan Indicator
17 Channel Indicator
18 Hi Power Indicator
19 Low Power Indicator
20 Transmit Indicator
21 Volume Setting Indicator
22 Keypad Lock Indicator
23 VOX Indicator
3) Exit the Menu.
2 PTT (Push-To-Talk) Button
3 Monitor Button
4 Scan Key
5 Menu Key
6 Channel Tone Key
7 Speaker
Note:
INSTALL THE BATTERY
Channel Scan Feature
To unlock the keypad:
•
•
•
•
Use only the supplied battery and AC adapter or
approved accessories from Uniden.
3) Other methods of exiting the Menu function are:
key again.
Your GMR1438 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.
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.
GMR1438 radio uses a supplied NiMH battery pack
(GMR1438-2CK Only) or 4 AAA alkaline batteries
(not included).
a. Press and hold the
b. Press the PTT, mon, call, scan or chan tone
key
Charge time may vary depending on the battery
life remaining.
8 Up/Down Button
9 Headset Jack
10 On/Off Key
c. Wait 10 seconds until the unit automatically
returns to “Normal” mode.
Do not recharge alkaline batteries. Doing so can
create a safety hazard or damage the radio.
To install the NiMH battery pack:
Pressing the PTT button while the scan is paused
on a channel allows you to transmit on that channel.
11 Call Key
12 Microphone
13 Battery Level Meter
24 Sub Code Indicator
25 Charging Contacts
1) Make sure your radio is OFF.
For fastest charging, turn off the radio before
charging.
2) Remove the battery compartment door by
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