Uniden GMRS680 Two-Way Radio User Manual

Choosing a Channel
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 choose a channel:
With the radio in "Normal" operating mode press
the channel/scan or key to increase or
decrease the channel number displayed.
Choosing a CTCSS Code
Each of the channels 1-22 may have any one of
the codes, OFF or 1-38 selected.Code "OFF"
indicates no CTCSS code selected and your radio
can receive a signal regardless of the code settings
of the transmitting radio.
1) Enter the Menu.The CTCSS code on the LCD
display will flash.
2) Press the channel/scan or key to
increase or decrease the code number
displayed.You can also select “OFF”at this
3) Exit the Menu to return to “Normal” mode.
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 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.
2) When you are finished speaking, release the PTT
button.You can now receive incoming calls.While
receiving, the icon will appear on the display.
Voice Operated Transmission
Your GMRS680 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, 1-3) will be indicated.Level oF
disables VOX, while levels - set the
sensitivity of the VOX circuit.
*Range may vary depending in environmental and/or topographical conditions.
8 GMRS / 14 FRS Channels
38 CTCSS Codes
Up to 5 Mile Range*
Internal VOX Circuitry
5 Selectable Call Tone Alerts
Backlit LCD Display
Optional Headset Accessories
Headset Jack
Battery Recharge Circuit
Optional NiMH Battery Pack
and Charger
1 Antenna
2 PTT (Push-To-Talk) Button
3 Channel/Scan Up Key
4 Call Key
5 Channel/Scan Down Key
6 Sel/ Key
7 Speaker
8 Mon Key
9 Volume Up Key
10 Volume Down Key
11 Battery Level Meter
12 Receive Indicator
13 Scan Indicator
14 Channel Indicator
15 Call Indicator
16 VOX Indicator
17 Keypad Lock Indicator
18 Transmit Indicator
19 Volume Setting Indicator
20 CTCSS Indicator
Congratulations on your purchase of the Uniden
GMRS680 (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.
Your package contains the GMRS680 radio, this
reference guide, including a product registration
card.You may operate the unit using 4 AAA alkaline
batteries or the rechargeable NiMH battery pack
(not included).The following optional accessories
may be purchased from your participating Uniden
dealer or call1-800-554-3988 or visit us on the web
at www.uniden.com.Use only Uniden accessories.
NiMH Battery Pack - #BP38
Recharging Cradle - #RC6248
Dual Recharging Cradle
with AC Adapter - #CK6000
The GMRS680 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:
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.
Your GMRS680 radio uses 4 AAA alkaline batteries
or the optional NiMH battery pack (not included).
If alkaline batteries are used, we recommend using
high quality alkaline batteries.
To install the 4 AAA alkaline batteries:
1) Make sure your radio is OFF.
2) Remove the battery compartment door by
pressing the tab at the bottom of the
compartment door allowing the door to be
3) Install 4 AAA alkaline batteries (not 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.
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 sel/ key to turn the unit
ON, and increase the speaker volume by
pressing the volume key.To decrease the
volume, press the volume key.
2) Press and hold the sel/ key again to turn the
unit OFF.
Adjusting the Sound (Key Beeps)
Your radio emits a beep each time one of the
buttons or keys (except for the PTT button 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.
Navigating through the Menu
To access the advanced features of the GMRS680,
your radio has a Menu function.
Battery Level Meter
Channel Monitor
Channel Scan
Keypad Lock
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
icon will flash.Replace the alkaline
batteries immediately or if you are using the NiMH
battery pack, you must recharge the 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.
1) To enter the Menu, press the sel/ key.
2) Additional presses of the sel/ key will
advance you through the Menu until exiting to
"Normal" operating mode.
3) Other methods of exiting the Menu function are:
a.Press and hold the sel/ key again.
b.Press PTT, mon, volume /, and call.
c.Wait 10 seconds until the unit automatically
returns to Normalmode.
2) Press either the channel/scan 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.
3) Exit the Menu.
Transmitting a Call Tone
Your GMRS680 radio is equipped with 5 selectable
call tones that will be 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 ( - ) will be
2) Press the channel/scan or key to
increase or decrease the number to the desired
call tone.Each tone will be heard through the
3) Exit the Menu.
To transmit the selected call tone, press the call
key.The selected tone will automatically be
transmitted for a fixed length of time.
Channel Scan Feature
Your GMRS680 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 PTT while the Scan is paused
on a channel will allow you to transmit on that
To turn ON channel scanning:
Press and hold either the channel/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.
To turn OFF channel scanning:
call, or PTT.
Normal NormalCTCSS VOX Level Call Tone Key Lock
off, 1-38 off, 1-3
Keypad 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 (OFF) blinks on the display.
2) To switch the key Lock mode from OFF to ON,
press the channel/scan key.
3) To confirm the setting, press the sel/ key.The
radio returns to the "Normal" mode.
Note: If you exit the setting mode before confirming
your selection by pressing the sel/ key, the key
Lock setting will be set to OFF.
To Unlock the keypad:
1) Press and hold the
sel/ key to turn the unit
2) Press and hold the sel/ key again to turn the
unit ON.The keypad is unlocked.
Automatic Power Save Feature
Your GMRS680 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 will automatically turn ON when
any key (except PTT button) is pressed.The LCD
display will illuminate for 10 seconds before turning
Monitor Mode Feature
Your GMRS680 radio allows you to listen for weak
signals on the current channel at the press of
a key.
To turn ON the monitor mode:
Press mon for brief listening, the icon will
Press and hold mon for 2 seconds for
continuous listening.The receiver circuit will stay
open, and letting in both the noise & weak
To turn OFF monitor mode:
mon to return to "Normal" mode, and the
icon stops blinking.