Uniden GMRS540 プリント

INSTALL THE BATTERIES

Your GMRS540 radio uses 3 AA Alkaline batteries
for power. We recommend using high quality alkaline
batteries.

To install the batteries:

1) Make sure your radio is OFF.

2) Remove the battery compartment door by 

pressing the tab at the bottom of the door 
allowing the door to be removed.

3) Install 3 AA 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) Optional: Your GMRS540 radio can be powered

using an optional NiMH battery pack specifically
designed for this model. Remove the alkaline 
batteries and install the battery pack by inserting
it into the battery compartment. Follow the
instructions found with the NiMH accessory.

5) Replace the battery compartment door by 

pressing the tab and snapping it into place.

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

meter

icon will flash and the unit will emit a low battery
tone. Replace the batteries immediately or if you are
using the optional NiMH battery pack, you must
recharge the battery 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.

Congratulations on your purchase of the Uniden
GMRS540 (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.

OPTIONAL ACCESSORIES

Your package contains the GMRS540 radio, this 
reference guide, and a product registration card. You
will need to purchase 3 AA Alkaline batteries in order
to operate the unit.The following optional accessories
may be purchased from your participating Uniden
dealer or call 1-800-554-3988 or visit us on the web
at www.uniden.com. Use only Uniden accessories.

•Earset Mic w/ PTT - #HS2468

•Vox Headset Mic - #HSV2469

•NiMH Battery Pack - #BP524

•Drop in Charger - #RC5248

Your GMRS540 radio emits a beep each time one 
of the keys are pressed or a Call Tone is generated.
To turn this sound OFF, press select/lock while 
turning on the radio. Repeat this step to turn the
sound ON.

To access the advanced features of the GMRS540,
your radio has a Menu function.

1) To enter the Menu, press the select/lock key.

2) Additional presses of the select/lock key will

advance you through the Menu until exiting to
"normal" operating mode.

3) Other methods of exiting the menu function are:

a. Press PTT (Press To Talk).

b. Wait 10 seconds until the unit automatically

returns to "normal" mode.

THANK YOU

FOR PURCHASING A UNIDEN

PR

ODUCT

BATTERY LEVEL AND 

LOW BATTERY ALERT

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 transmit icon T

TX

X will be

shown 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 receive icon R

RX

X

will be shown on the display.

Your GMRS540 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 C

CA

AL

LL

L icon on the 

display is shown. The current call tone
number (1

1-5

5) will be indicated.

2) Press the ▲ or ▼ keys to increase or 

decrease the number to the desired call
tone. Each tone will be heard through
the speaker.

3) Exit the Menu.

To transmit the selected call alert tone,
press the call key. The selected tone will
automatically be transmitted for a fixed
length of time.

Your GMRS540 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 4 second delay, the unit will continue 
scanning. Pressing PTT while the scan is
paused on a channel will allow you to 
transmit on that channel.

To turn ON channel scanning:
Press and hold either the ▲ or ▼ key 
until the S

SC

CA

AN

N icon on the display is 

shown. The channel number on the display
will rapidly cycle through the channels.

To turn OFF channel scanning:
Press and release either the ▲ or ▼ key.

• 5 Selectable Call Tone Alerts

• 8 GMRS/14 FRS Channels

• Battery Recharge Circuitry

• Internal VOX Circuitry

• Channel Monitor

• Headset Jack

• 38 CTCSS Codes

• 7 NOAA Emergency/Weather Channels

• Optional NiMH Battery Pack and Charger

• Extended Long Range*

• Battery Level Meter

• Backlit LCD Display

• Channel Scan

• Keypad Lock

• Weather Alert

GMRS540

1) Rotate the on/off/volume control counter

clockwise to turn the unit ON and increase 
the speaker volume.

2) Rotate the on/off/volume control clockwise 

to decrease the speaker volume and turn 
the unit OFF.

USING THE RADIO

In order to get the most out of your new radio, read
this reference guide completely before attempting to
operate the unit.

Each of the channels 1-22 may have any one of
the codes 0-38 selected. Code "0" 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. Advance through the Menu

until the CTCSS code on the LCD is flashing.

2) Press the ▲ or ▼ key to increase or decrease

the code number displayed.

3) Exit the Menu to return to "normal" mode.

1 Antenna

15 Weather Indicator

2 Monitor Button

16 Weather Alert

3 PTT Button

17 Scan Indicator

4 Up Key

18 Transmit Indicator

5 Down Key

19 Battery Level Meter

6 Select/Lock Key

20 Channel Indicator

7 Speaker

21 Lock Indicator

8 On/Off/Volume Control

22 VOX Indicator

9 Beltclip

23 Call Alert

10 Headset Jack

24 Receive Indicator

11 WX Key

25 CTCSS Code

12 Call Key

13 Microphone

14 Battery Cover

Your radio has 8 GMRS/14 FRS 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:
Press the ▲ or ▼ key to increase or decrease the
channel number displayed.

Your GMRS540 radio is equipped with a user
selectable Voice Operated Transmitter (VOX) 
which is enabled when the special headset is
inserted and can be adjusted through the Menu.
The VOX feature is designed to be used with a
headset with a microphone, but no remote PTT
switch. Transmission is initiated by speaking into
the remote microphone instead of pushing the 
PTT button.

To select a VOX level:

1) Enter the Menu. Advance through the Menu

until the V

VO

OX

X icon is displayed. The current

level (0

0-3

3) will be indicated. Level ‘0’ disables

VOX, while levels 1-3 set the sensitivity of the
VOX circuit.

2) Press the ▲ or ▼ keys to the desired VOX

sensitivity level. Use level 1 for increased

FCC GMRS LICENSE

To Lock the keypad, press and hold the
select/lock key until the     icon is displayed.
To remove the keypad Lock, press and 
hold the select/lock key until the Lock icon 
disappears.

The GMRS540 radio is equipped with an
automatic squelch system which shuts off
weak transmissions and unwanted noise due
to terrain conditions or if you have reached

sensitivity to voice in normally quiet 

environments, and use a higher level to
reduce undesired activation in very noisy
environments.

3) Exit the Menu.

GMRS540_OM.qxd  03/18/2002  11:00 AM  Page 1