Uniden Two Way Radio GMR1448 2CK User Manual

Congratulations on your purchase of the Uniden  
GMR1448-2CK (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.  
compartment applying the battery contacts to  
the lower charge contacts. Be certain to follow  
the instructions written on the label on the  
battery pack. Installing the battery pack  
Do not recharge alkaline batteries. Doing so can  
create a safety hazard or damage the radio.  
1) Press chan tone/scan 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.  
Navigating through the Menu  
To select a call tone:  
GMR1448-2CK  
To access the advanced features of the GMR1448-  
2CK, your radio has a Menu function.  
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.  
For fastest charging, turn off the radio before  
charging.  
• 15 GMRS / 7 FRS Channels  
• 99 Sub Codes  
(CTCSS Tone and DCS Code) Channel Monitor  
Battery Charger  
Normal  
Scramble  
VOX Level  
OFF, 1-5  
Call Tone  
1-5  
Key Lock  
Normal  
Battery Level Meter  
incorrectly will prevent the unit from operating.  
4) Replace the battery compartment door.  
Battery must be installed for operation, even  
from external power.  
3) Press chan tone/scan to exit the Menu.  
• Up to 14 Mile Range*  
• Scramble  
Channel Scan  
Keypad Lock  
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.  
Channel Scan Feature  
ON-OFF  
ON-OFF  
Your GMR1448-2CK 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.  
• Internal VOX Circuitry  
• 5 Selectable Call Tone Alerts  
• Backlit LCD Display  
NOAA Emergency /  
Weather Channels  
Emergency Weather Alert  
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.  
1) To enter the Menu, press the menu key.  
BATTERY LEVEL AND  
LOW BATTERY ALERT  
PACKAGE CONTENTS  
2) Additional presses of the menu key advances  
you through the Menu until exiting to "Normal"  
operating mode.  
• Optional Headset Accessories DC IN 9V Jack  
• Headset Jack  
• Roger Beep  
Your package contains two GMR1448-2CK radios,  
two rechargeable NiMH battery packs (#BP40), one  
AC adapter (#AD-0001), one charging cradle  
(#RC1032), 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.  
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  
3) Other methods of exiting the Menu function are:  
a. Press and hold the  
Key Lock  
key again.  
b. Press the PTT, mon, call, wx/alert, or chan  
tone/scan key  
USING THE RADIO  
To lock the keypad:  
icon  
flashes. Recharge the NiMH battery  
1) Enter the Menu. Advance through the Menu until  
the  
In order to get the most out of your new radio, read  
this reference guide completely before attempting to  
operate the unit.  
pack immediately or if you are using the alkaline  
batteries, you must replace the alkaline batteries in  
order to continue using the radio.  
To turn ON channel scan:  
c. Wait 10 seconds until the unit automatically  
returns to Normalmode.  
icon appears on the display. The current  
Press and hold the chan tone/scan key until the  
scan... icon is displayed. The channel number on  
the display changes as the radio rapidly cycles  
through the channels.  
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.  
Turning the Radio On and Adjusting the Volume  
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.  
Setting Scramble  
1) Press and hold the  
key to turn the radio ON,  
Scramble feature allows you to make a private  
conversation. No one listening to your conversation  
can understand what you are talking about. Be sure  
that your party also sets their radio to the scramble  
feature.  
NiMH Battery Pack - #BP40  
Charging Cradle - #RC1032  
Headset - #HS910/HS915/ZA-133  
AC Adapter - #AD-0001  
and increase the speaker volume by pressing the  
L key. To decrease the volume, press the M  
key.  
To turn OFF channel scan:  
Press the call, PTT, wx/alert or menu key, or  
press and hold the chan tone/scan key for 2  
seconds.  
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).  
*Range may vary depending on environmental and/or topographical conditions.  
2) Press and hold the  
radio OFF.  
key again to turn the  
GMR1448-2CK RADIO  
DC Adapter - #DC-1002  
Note: Scramble only operates on FRS channels  
8-14.  
CHARGING THE RADIO  
To unlock the keypad:  
Talking on Your Radio  
Adjusting the Sound (Key Beeps)  
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.  
If you use the rechargeable NiMH battery pack, two  
GMR1448-2CK radios can be charged directly or by  
using the supplied charging cradle.  
To set Scramble:  
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.  
To talk to others using the radio:  
1) Enter the Menu.  
2) Select on using L or M.  
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.  
GMRS LICENSE  
Automatic Power Save Feature  
The GMR1448-2CK radio operates on the  
General Mobile Radio Service (GMRS)  
Charge by Using the Radio  
Voice Operated Transmission  
Your GMR1448-2CK 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.  
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.  
Your GMR1448-2CK 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.  
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,  
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.  
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.  
2) When you have finished speaking, release the  
PTT button. You can now receive incoming calls.  
While receiving, the  
display.  
icon appears on the  
Using the Charging Cradle  
LCD Backlight  
To choose a channel:  
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 charging.  
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:  
With the radio in "Normal" operating mode press  
the chan tone/scan key and press the L or M key  
to increase or decrease the channel number  
displayed.  
Monitor Mode Feature  
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  
Your GMR1448-2CK radio allows you to listen for  
weak signals on the current channel at the press of  
a key.  
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.  
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.  
To turn ON the Monitor Mode:  
sensitivity of the VOX circuit.  
1 Antenna  
16 Call Indicator  
17 Scan Indicator  
18 Channel Indicator  
19 Hi Power Indicator  
20 Low Power Indicator  
21 Alert Indicator  
22 Transmit Indicator  
23 Volume Setting Indicator  
24 Keypad Lock Indicator  
25 VOX Indicator  
For brief listening, press mon button. The  
icon blinks.  
Press and hold mon button for 2 seconds untill  
two beeps sound for continuous listening. The  
receiver circuit stays open, letting both the noise  
and weak signals to be heard.  
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  
environments, and use a higher level to reduce  
undesired activation in very noisy environments.  
2 PTT (Push-To-Talk) Button  
3 Monitor Button  
4 Weather/Alert Key  
5 Menu Key  
6 Channel Tone/Scan Key  
7 Speaker  
INSTALL THE BATTERY  
Note:  
Your GMR1448-2CK radio uses a supplied NiMH  
battery pack or 4 AAA alkaline batteries (not  
included).  
For charging batteries directly without the cradle,  
use only the #DC-1002 Cigarette Lighter Adapter  
Other power cords could damage your radio.  
Transmitting a Call Tone  
To turn OFF Monitor Mode:  
8 Up/Down Button  
9 Headset Jack  
10 On/Off Key  
11 Call Key  
12 Microphone  
Choosing a Sub Code  
DC IN 9V Jack of the radio is for charge only.  
Be sure to install the battery before charge.  
To install the NiMH battery pack:  
Your GMR1448-2CK radio is equipped with 5  
selectable call tones that are transmitted when the  
call key is pressed.  
To turn ON Roger Beep:  
Press mon button to return to "Normal" mode,  
and the  
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) Make sure your radio is OFF.  
icon stops blinking and disappears.  
Press and hold the L key while turning ON the radio.  
Use only the supplied battery and AC adapter or  
approved accessories from Uniden.  
26 Weather Indicator  
27 Sub Code Indicator  
28 Scramble Indicator  
29 Charging Contacts  
2) Remove the battery compartment door by  
pressing the tab at the bottom of the  
To turn OFF Roger Beep:  
13 DC IN 9V  
14 Battery Level Meter  
15 Receive Indicator  
Charge time may vary depending on the battery  
life remaining.  
compartment door, and remove the cover.  
3) Install the NiMH battery pack into the battery  
Press and hold the L key while turning ON the radio.  
 

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