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Uniden GMR648-2CK User Manual

Uniden radio user manual.
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Congratulations on your purchase of the Uniden
Installing the battery pack incorrectly will prevent
Voice Operated Transmission
Key Lock
VOX Level
Call Tone
Key Lock
GMR648-2CK (General Mobile Radio Service)
the unit from operating.
Your GMR648-2CK radio is equipped with a user
To lock the keypad:
radio. This product is a lightweight, palm-sized
selectable Voice Operated Transmitter (VOX) that
1) Enter the Menu. Advance through the Menu until
4) Replace the battery compartment door.
• 15 GMRS / 7 FRS Channels
• Battery Charger
radio. Use it at sporting events to stay in contact
can be used for automatic voice transmissions. The
icon appears on the display. The current
OFF, 1-38
OFF, 1-3
• 38 CTCSS Codes
• Battery Level Meter
with family and friends, hiking, skiing, outdoors, or
VOX feature is designed to be used with a headset
Key Lock status oF (OFF) blinks on the display.
in a neighborhood watch for vital communication.
• Up to 6 Mile Range*
• Channel Monitor
with a microphone. Transmission is initiated by
2) To switch the Key Lock mode from oF (OFF) to
• Internal VOX Circuitry
This compact, state-of-the-art device is equipped
• Channel Scan
speaking into the remote microphone instead of
on, press the L key.
1) To enter the Menu, press the sel/
with many features.
• 5 Selectable Call Tone Alerts
• Keypad Lock
pushing the PTT button.
2) Additional presses of the sel/
key will advance
3) To confirm the setting, press the sel/
• Backlit LCD Display
• NOAA Emergency /
This unit has a battery level meter on the display to
you through the Menu until exiting to "Normal"
The radio returns to the "Normal" mode.
To select the VOX level:
• Optional Headset Accessories
Weather Channels
indicate the status of the batteries. When the battery in
operating mode.
Note: If you exit the setting mode before confirming
1) Enter the Menu. Advance through the Menu until
• Headset Jack
• Emergency Weather Alert
the unit is low, the battery level meter icon
3) Other methods of exiting the Menu function are:
the vox icon appears on the display. The current
your selection by pressing the sel/
key, the Key
flash. Recharge the NiMH battery pack immediately or if
• Roger Beep
a. Press and hold the sel/
key again.
Your package contains two GMR648-2CK radios,
Lock setting will be set to oF (OFF).
level (OFF, 1-3) will be indicated. Level oF (OFF)
you are using the alkaline batteries, you must replace the
b. Press the PTT, mon, call, wx/alert, or ch/scan key
two rechargeable NiMH battery packs (#BP38), two
disables VOX, while levels
set the
alkaline batteries in order to continue using the radio.
c. Wait 10 seconds until the unit automatically returns to
AC adapters (#AD-0001), two charging cradles
sensitivity of the VOX circuit.
To unlock the keypad:
"Normal" mode.
(#RC6488), two belt clips and this reference guide.
Warning! To avoid the risk of personal injury or property
2) Press either the L or M key to the desired VOX
1) Press and hold the sel/
key to turn the radio
You may operate the unit using the rechargeable
damage from fire or electrical shock, only use the Uniden
sensitivity level. Use level 1 for increased
Choosing a Channel
NiMH battery pack or 4 AAA alkaline batteries
accessories specifically designated for this product.
2) Press and hold the sel/
key again to turn the
sensitivity to voice in normally quiet
Your radio has 22 channels and 38 CTCSS codes
(not included). The following optional accessories
environments, and use a higher level to reduce
radio ON. The keypad is unlocked.
may be purchased by calling the Customer Hotline
you can use to talk to others. In order to speak to
undesired activation in very noisy environments.
someone, each of you must set to the same
at 1-800-297-1023 (Mon-Fri 7 am to 7 pm,
Automatic Power Save Feature
3) Exit the Menu.
channel and CTCSS code.
Sat/Sun/holidays--except Thanks giving and
Your GMR648-2CK radio has a unique circuit
If you use the rechargeable NiMH battery pack, two
Christmas--9 am to 5 pm, CST). Use only Uniden
To choose a channel:
Transmitting a Call Tone
designed to dramatically extend the life of the
GMR648-2CK radios can be charged by using the
With the radio in "Normal" operating mode press the
Your GMR648-2CK radio is equipped with 5
batteries. If there is no transmission nor an
charging cradle.
ch/scan key and press the L or M key to increase or
• NiMH Battery Pack - #BP38
incoming call within 3 seconds, your radio switches
selectable call tones that will be transmitted when
Make sure to turn the radio OFF before placing
• Charging Cradle - #RC6488
decrease the channel number displayed.
the call key is pressed.
to the Power Save mode. The radio is still able to
the radio in the charging cradle. Otherwise the
*Range may vary depending on environmental and/or topographical conditions.
receive transmissions in this mode.
• Headset - #HS2467
battery level meter icon won't indicate properly.
To select a call tone:
Note: Channels 1-7 have an expectancy range of
up to 6 miles. Channels 8-14 have an expectancy
1) Enter the Menu. Advance through the Menu until
LCD Backlight
1) Connect the AC adapter (# AD-0001) to DC IN
range of up to 3 miles. Channels 15-22 have an
the call icon is shown on the display. The current
The LCD Backlight will automatically turn ON when
9V jack and to a standard 120V AC wall outlet.
expectancy range of up to 6 miles. You can know
call tone number (
) will be indicated.
2) Set the charging cradle on the desk or tabletop,
any key (except the PTT button) is pressed. The LCD
which GMRS or FRS channel is active by the icon.
2) Press the L or M key to increase or decrease
display will illuminate for 10 seconds before turning
The GMR648-2CK radio operates on the General
and place the radio in the charging cradle with
icon indicates scanning GMRS channel,
the number to the desired call tone. Each tone
the keypad facing forward.
Mobile Radio Service (GMRS) frequencies when
and the
icon indicates scanning FRS channel.
will be heard through the speaker.
3) Make sure that the LED illuminates. Charge the
using Channels 1-7 and channels 15-22. You
3) Exit the Menu.
Monitor Mode Feature
battery pack for 16 hours and remove the radio
must have a GMRS license issued by the Federal
Choosing a CTCSS Code
from the charging cradle after charge.
Your GMR648-2CK radio allows you to listen for weak
Communications Commission to legally use
Each of the channels 1-22 may have any one of
To transmit the selected call tone, press the call
signals on the current channel at the press of a key.
these channels. For licensing information and
key. The selected tone will automatically be
the codes, OFF or 1-38 selected. Code oF (OFF)
Note: The charge indicator LED will remain on as
To turn ON the Monitor Mode:
application forms, visit the FCC online at:
indicates no CTCSS code selected and your radio
transmitted for a fixed length of time. Call Tone will
long as the radios are left in the charger.
• Press mon for brief listening, the
icon will or call the FCC hotline at
can receive a signal regardless of the code settings
be cancelled when the PTT button is pressed.
of the transmitting radio.
1-800-418-3676. If you have any questions, you
• Press and hold mon for 2 seconds for continuous
Channel Scan Feature
can contact the FCC direct at 1-888-225-5322.
listening. The receiver circuit will stay open, and
1) Enter the Menu. The CTCSS code on the LCD
Your GMR648-2CK radio has a channel Scan
No license is required for operation on channels
letting in both the noise and weak signals.
display will appear.
feature that allows you to easily Scan all 22
In order to get the most out of your new radio, read this
8-14 or operation on any channel in Canada.
2) Press the L or M key to increase or decrease
channels. When an active channel is detected, the
reference guide completely before attempting to operate
To turn OFF Monitor Mode:
the code number displayed. You can also select
radio will pause on that channel until the channel is
the unit.
Press mon to return to "Normal" mode, and the
oF (OFF) at this stage.
clear. Then after a 2 second delay, the radio will
icon stop blinking.
Turning the Radio On and Adjusting the Volume
3) Exit the Menu.
continue scanning. Pressing the PTT button while
1) Press and hold the sel/
key to turn the radio ON,
the Scan is paused on a channel will allow you to
Roger Beep
Your GMR648-2CK radio uses the NiMH battery
and increase the speaker volume by pressing the L
Talking on Your Radio
transmit on that channel.
Roger Beep is a BEEP that is sent to notify the end
1 Antenna
15 Call Indicator
key. To decrease the volume, press the M key.
pack or 4 AAA alkaline batteries (not included).
To talk to others using the radio:
2 PTT (Push-To-Talk) Button
16 Scan Indicator
of transmission (both PTT and VOX transmission).
To turn ON channel Scan:
2) Press and hold the sel/
key again to turn the radio
3 Monitor Key
17 Channel Indicator
1) Press and hold the PTT button and speak in a
Roger Beep can be heard through the speaker when
Press and hold the ch/scan key until the scan...
4 Call Key
18 Alert Indicator
To install the NiMH battery pack:
clear, normal voice about 2-3 inches away from
Key Beep is on. Roger Beep is transmitted even if
icon is displayed. The channel number on the
5 WX/Alert Key
19 Weather Indicator
1) Make sure your radio is OFF.
Adjusting the Sound (Key Beeps)
the microphone. While you are transmitting, the
Key Beep is turned off. However, Roger Beep will not
display will change as the radio rapidly cycles
6 Channel/Scan Key
20 Transmit Indicator
icon will appear on the display. To avoid
be heard from the speaker.
2) Remove the battery compartment door by
Your radio emits a beep each time one of the keys (except
through the channels.
7 Speaker
21 Volume Setting Indicator
cutting off the first part of your transmission,
pressing the tab at the bottom of the
for the PTT button and call key) is pressed. To turn this
8 Headset Jack
22 VOX Indicator
pause slightly after pressing the PTT button
To turn OFF channel Scan:
To turn ON Roger Beep:
sound OFF, press and hold the call key while turning ON
compartment door allowing the door to be
9 Up Key
23 GMRS/FRS Indicator
Press and hold the L key while turning ON the radio.
before you start talking.
the radio. Repeat this step to turn the sound ON.
Press the sel/
, call, PTT, or wx/alert key, or
10 On/Off/Select Key
24 Keypad Lock Indicator
2) When you have finished speaking, release the
press and hold the ch/scan key for 2 seconds.
11 Microphone
25 CTCSS Indicator
3) Install the NiMH battery pack into the battery
Navigating through the Menu
To turn OFF Roger Beep:
PTT button. You can now receive incoming calls.
12 Down Key
26 Charging contacts
Press and hold the L key while turning ON the radio.
compartment. Be certain to follow the instruction
To access the advanced features of the GMR648-2CK,
While receiving, the
icon will appear on the
13 Battery Level Meter
27 Charging LED
written on the label on the battery pack.
your radio has a Menu function.
14 Receive Indicator

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   Summary of Contents for Uniden GMR648-2CK

  • Page 1

    Warning! To avoid the risk of personal injury or property You may operate the unit using the rechargeable damage from fire or electrical shock, only use the Uniden NiMH battery pack or 4 AAA alkaline batteries accessories specifically designated for this product.

  • Page 2

    ELEMENTS OF WARRANTY: Uniden warrants, for (preferably in its original packaging). Disconnect the human exposure to radio frequency one year, to the original retail owner, this Uniden battery from the Product and separately secure the electromagnetic energy emitted by FCC regulated...

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