Uniden GMRS GMR1838-2CK User Manual

Uniden Radio Stations

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GMR1838-2CK

*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 18 Mile Range*
• Internal VOX Circuitry
• 5 Selectable Call Tone Alerts
• Backlit LCD Display
• Optional Headset Accessories
• Headset Jack

1 Antenna

2 PTT (Push-To-Talk) Button

3 Monitor Button

4 Scan Key

5 Menu Key

6 Channel Tone Key

7 Speaker

8 Up/Down Button

9 Headset Jack

10 On/Off Key

11 Call Key

12 Microphone

13 DC IN 9V

14 Battery Level Meter

15 Receive Indicator

16 Call Indicator

17 Scan Indicator

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

25 Sub Code Indicator

26 Charging Contacts

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.

PACKAGE CONTENTS

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

accessories, visit our web site at www.uniden.com

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
• DC Adapter - #DC-1002

GMRS LICENSE

The GMR1838-2CK 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 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

USING THE RADIO

• Roger Beep
• Battery Charger
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Keypad Lock
• DC IN 9V Jack

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

flashes. 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.

GMR1838-2CK RADIO

CHARGING THE RADIO

If you use the rechargeable NiMH battery pack, two

GMR1838-2CK radios can be charged directly or by

using the supplied charging cradle.

Charge by Using the 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.

Using the Charging Cradle
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.

Note:
• For charging batteries directly without the cradle,

use only the #DC-1002 Cigarette Lighter Adapter

cord, available from www.Uniden.com.

Other power cords could damage your radio.

• DC IN 9V Jack of the radio is for charge only.

Be sure to install the battery before charge.

• Use only the supplied battery and AC adapter or

approved accessories from Uniden.

• Charge time may vary depending on the battery

life remaining.

• 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.

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) 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 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 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.

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 be set to the same

channel and Sub code.
To choose a channel:
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.

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.

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) Press chan tone in channel select mode.

The subcode indicator will flash.

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.

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.
To turn ON channel scan:
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.
To turn OFF channel scan:
Press the call, PTT, menu or scan key.

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 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

icon appears on

the

display.

Monitor Mode Feature
Your GMR1838-2CK radio allows you to listen for

weak signals on the current channel at the press of

a key.
To turn ON the Monitor Mode:
• 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.

To turn OFF Monitor Mode:
Press mon button to return to "Normal" mode,

and the

icon stops blinking and disappears.

Navigating through the Menu
To access the advanced features of the GMR1838-

2CK, your radio has a Menu function.

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

c. Wait 10 seconds until the unit automatically

returns to “Normal” mode.

Voice Operated Transmission
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.
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, 1-5) 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.

Transmitting a Call Tone
Your GMR1838-2CK radio is equipped with 5

selectable call tones that are 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) 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 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.

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 menu key.

The radio returns to the "Normal" mode.

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).
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.

Automatic Power Save Feature
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.

LCD Backlight
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.

Roger Beep
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.

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.

Normal

Normal

VOX Level

Call Tone

Key Lock

1-5

OFF, 1-5

ON-OFF

• Battery must be installed for operation, even from

external power.

• 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.

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