Uniden Two Way Radio GMRS750 User Manual

UT896ZH (GMRS750)-0625 6/25/03 11:14 AM Page 1  
Congratulations on your purchase of the Uniden  
GMRS750 (General Mobile Radio Service) radio.  
This product is a lightweight, palm-sized radio.  
Use it at sporting events to stay in contact with  
family and friends, hiking, skiing, outdoors, or in  
a neighborhood watch for vital communication.  
This compact, state-of-the-art device is equipped  
with many features.  
Choosing a Channel  
instead of pushing the PTT button. A beep tone will  
be heard to indicate the transmission has stopped.  
Note: When the VOX feature is enabled ,the  
GMRS750 will emit a confirmation tone to indicate  
the end of transmission. While the Headset jack  
cover is open, it does not meet JIS4 waterproof.  
Keypad Lock  
BATTERY LEVEL AND  
LOW BATTERY ALERT  
GMRS750  
Your radio has 22 channels and 38 CTCSS 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 CTCSS code.  
To Lock the keypad:  
Power Boost key for Maximum  
Range  
Transmit Confirmation  
Tone  
1) Enter the Menu. Advance through the Menu until  
This unit has a battery level meter on the display to  
indicate the status of the batteries. When the  
batteries in the unit are low, the battery level meter  
the Keypad Lock icon the  
icon appears on  
38 CTCSS Codes Headset Jack  
Up to 7 Mile Range* Battery Level Meter  
7 FRS/GMRS, 7 FRS, 8 GMRS Channel Monitor  
the display. The current key Lock status (OFF)  
blinks on the display.  
To choose a channel:  
icon  
will flash. Replace the alkaline  
To select the VOX level:  
2) To switch the key Lock mode from OFF to ON,  
press the chan/scan + key.  
With the radio in "Normal" operating mode press  
the chan/scan + or key to increase or decrease  
the channel number displayed.  
batteries immediately.  
Internal VOX Circuitry  
5 Selectable Call Tone Alerts  
Backlit LCD Display  
Channel Scan  
Keypad Lock  
7 Emergency / Weather  
Channels  
1) Enter the Menu. Advance through the Menu until  
the vox icon appears on the display. The current  
level (off, 1-4) will be indicated. Level  
3) To confirm the setting, press the select/ key.  
The radio returns to the "Normal" mode.  
Headset Accessory  
4 DuraCell Ultra AAAlkaline  
Batteries included  
Note: FRS Channels 8-14 have an expectancy  
range of up to 2 miles. GMRS channels 1-7, 15-22  
have an expectancy range of up to 5 miles and up  
to 7 miles by pressing the Power boost key.  
disables VOX, while levels  
-
FCC GMRS LICENSE  
USING THE RADIO  
Emergency / Weather  
Alert  
set the sensitivity of the VOX circuit.  
2) Press either the chan/scan + or key to the  
desired VOX sensitivity level. Use level 4 for  
increased sensitivity to voice in normally quiet  
environments, and use a lower level to reduce  
undesired activation in very noisy environments.  
3) Exit the Menu.  
Note: If you exit the setting mode before confirming  
your selection by pressing the select/ key, the key  
Lock setting will be set to OFF.  
The GMRS750 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:  
In order to get the most out of your new radio, read  
this reference guide completely before attempting to  
operate the unit.  
Choosing a CTCSS Code  
To Unlock the keypad:  
Turning the Radio On and Adjusting the Volume  
Each of the channels 1-22 may have any one of  
the codes, OFF or 1-38 selected. Code  
indicates no CTCSS code selected and your radio  
can receive a signal regardless of the code settings  
of the transmitting radio.  
1) Press and hold the select/ key to turn the unit  
OFF.  
1) Press and hold the select/ key to turn the unit  
ON, and increase the speaker volume by  
pressing the vol + key. To decrease the volume,  
press the vol key.  
1-800-418-3676. If you have any questions you  
can contact the FCC direct at 1-888-225-5322.  
2) Press and hold the select/ key again to turn  
the unit ON. The keypad is unlocked.  
The Uniden GMRS750 Radio meets the stringent JIS4 waterproof specification.  
You are encouraged to thoroughly read the rest of this Operating Guide to  
acquaint yourself with the characteristics and operation of your transceiver so  
that you can contribute to the longevity of your investment.  
Features, specifications, and availability of optional accessories are all subject  
to change without notice.  
Transmitting a Call Tone  
Your GMRS750 radio is equipped with 5 selectable  
call tones that will be transmitted when the call key  
is pressed.  
2) Press and hold the select/ key again to turn  
the unit OFF.  
Note: Key Lock is automatically canceled when WX  
alert is decoded.  
1) Enter the Menu. The CTCSS code on the LCD  
display will flash.  
2) Press the chan/scan + or key to increase or  
decrease the code number displayed. You can  
also select (off) at this stage.  
3) Exit the Menu to return to “Normal” mode.  
Note: GMRS750 meets JIS4 requirements.  
INSTALL THE BATTERIES  
To select a call tone:  
* Range may vary depending on environmental and/or topographical conditions.  
Adjusting the Sound (Key Beeps)  
1) Enter the Menu. Advance through the Menu until  
the call icon is shown on the display. The  
Your GMRS750 radio uses 4 AA alkaline batteries.  
If alkaline batteries are used, we recommend using  
high quality alkaline batteries.  
GMRS750 RADIO  
Your radio emits a beep each time one of the  
buttons or keys (except for the PTT button, Power  
boost key and call key) are pressed. To turn this  
sound OFF, press and hold call while turning ON  
the radio. Repeat this step to turn the sound ON.  
Automatic Power Save Feature  
current call tone number (  
indicated.  
-
) will be  
Your GMRS750 radio has a unique circuit designed  
to dramatically extend the life of the  
batteries.  
Talking on Your Radio  
2) Press the chan/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 install the 4 AA alkaline 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.  
To talk to others using the radio:  
1) Make sure your radio is OFF.  
2) Open the battery compartment door by sliding  
the catch on the bottom of the radio. Then,  
remove the battery holder.  
Navigating through the Menu  
To access the advanced features of the  
GMRS750, your radio has a Menu function.  
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.  
To transmit the selected call tone, press the call  
key. The selected tone will automatically be  
transmitted for a fixed length of time.  
3) Pull up the tab on the battery holder to open the  
battery compartment cover.  
LCD Backlight  
Normal  
CTCSS  
VOX Level  
Call Tone  
Key Lock  
Normal  
The LCD backlight will automatically turn ON when  
any key (except the PTT button or the Power boost  
key) is pressed. The LCD display will illuminate for  
10 seconds before turning OFF.  
Pull up  
Channel Scan Feature  
2) When you are finished speaking, release the PTT  
button.You can now receive incoming calls. While  
1-5  
off, 1-38  
off, 1-4  
ON-OFF  
Your GMRS750 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 button or the Power  
boost key while the Scan is paused on a channel  
will allow you to transmit on that channel.  
receiving, the  
icon will appear on the display.  
1) To enter the Menu, press the select/ key.  
2) Additional presses of the select/ key will  
Monitor Mode Feature  
Note: When you press the Power boost key, boost  
and tx 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.  
Your GMRS750 radio allows you to listen for weak  
signals on the current channel at the press of a key.  
advance you through the Menu until exiting to  
"Normal" operating mode.  
4) Install the 4 AA alkaline batteries (included) into  
the battery compartment. Be certain to follow the  
+ and symbols in the compartment. Installing  
the batteries incorrectly will prevent the unit from  
operating.  
1
2
3
4
5
6
7
8
9
Antenna  
15 Scan Indicator  
16 Channel Indicator  
17 VOX Indicator  
18 Volume Setting Indicator  
19 Weather Indicator  
20 Weather Alert Indicator  
21 GMRS/FRS Indicator  
22 Battery Level Meter  
23 Keypad Lock Indicator  
24 rx (receive) Indicator  
3) Other methods of exiting the Menu function are:  
a. Press and hold the select/ key again.  
b. Press PTT, boost, mon, vol +/, or call.  
c. Wait 10 seconds until the unit automatically  
returns to Normalmode.  
To turn ON the monitor mode:  
PTT (Push-To-Talk) Button  
Power Boost Key  
Select/ (power) Key  
Vol (volume) Up Key  
Vol (volume) Down Key  
WX/Alert Key  
Press the mon key for brief listening, the  
icon will blink.  
To turn ON channel scanning:  
Press and hold either the chan/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.  
Press and hold the mon key for 2 seconds for  
continuous listening. The receiver circuit will stay  
open, and letting in both the noise & weak  
signals.  
Voice Operated Transmission/Confirmation Tone  
5) Replace the battery compartment cover.  
6) Insert the battery holder into the radio until it  
clicks.  
Call Key  
Headset Jack  
Your GMRS750 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 (included). Transmission is  
initiated by speaking into the remote microphone  
Note: Only the Key Lock menu is available when it  
is in the Weather Radio Broadcast mode.  
To turn OFF channel scanning:  
10 Speaker  
7) To make sure that the battery pack is secure  
after installation, press up on the catch until it  
"clicks".  
To turn OFF monitor mode:  
11 Chan(Channel)/scan + (up) Key 25 tx (transmit) Indicator  
12 Chan(Channel)/scan (down) Key 26 Boost Indicator  
Press the select/ , call, the Power boost key,  
wx/alert key, or the PTT button.  
Press the mon key to return to "Normal" mode,  
and the  
13 Mon (monitor) Key  
14 Mic  
27 Call Indicator  
28 CTCSS Indicator  
icon stops blinking.  
 

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