Trisquare Communications GMRS520A 22 CH FRS/ GMRS Transceiver User Manual Unofficial GMRS520 Owners Guide Content v0
Trisquare Communications Inc. 22 CH FRS/ GMRS Transceiver Unofficial GMRS520 Owners Guide Content v0
users manual
GMRS520 – User Instruction Guide – Content Draft
TriSquare Communications Version 0 (11/9/01) Page 1
BUTTONS AND CONTROLS
1) On/Off/Mode Control
2) PTT Button
3) Up Key
4) Down Key
5) Call Key
LCD DISPLAY
1) Channel Indicator
2) Tx/Rx Indicators
INTRODUCTION
Congratulations on your purchase of the Uniden GMRS520 Family Radio
Service radio. [add marketing description of product ]. This state-of-the-
art device is equipped with the following features:
o 22 FRS Channels
o Up to 2 mile range*
o LCD Display
o Call Tone Alert
o Channel Scan
* Range may vary depending on environmental and/or topographical
conditions.
PACKAGE CONTENTS
o Your package contains the GMRS520 radio, this reference guide,
and a product registration card. You may operate each unit using 3
AAA Alkaline batteries (not included).
RADIO
PICTURE
HERE
GMRS520 – User Instruction Guide – Content Draft
TriSquare Communications Version 0 (11/9/01) Page 2
INSTALL THE BATTERIES
Your GMRS520 radio uses 3 AAA Alkaline batteries.
To install Alkaline batteries:
1) Make sure your radio is OFF.
2) Remove the battery compartment door by pressing the top and sliding it
down allowing the door to be removed.
3) Install 3 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.
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.
Turning the Radio On and Adjusting Volume
1) Press and hold the on/off/mode key for 2 seconds to turn the unit ON.
2) Press and hold the on/off/mode for 2 seconds to turn the unit OFF.
Adjusting the Sound (Key Beeps)
Your radio emits a beep each time one of the buttons is pressed or a Call
tone is generated. To turn the sound OFF, press the Call button while
turning on the radio. Repeat this step to turn the sound ON.
Choosing a Channel
Your radio has 22 channels you can use to talk to others. In order to speak
to someone, each of you must be set to the same channel.
To choose a channel:
Press and release the on/off/mode key to change the mode from volume
control to channel control. Press the Up or Down button to increment or
decrement the channel number displayed.
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Talking on Your Radio
To talk to others using the radio PTT button:
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 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 will be
shown on the display.
Transmitting a Call Alert Tone:
Your GMRS520 radio is equipped with a call tone that will be transmitted
when the Call button is pressed.
To transmit the call alert tone, press the Call button. The tone will
automatically be transmitted for a fixed length of time.
Channel Scan Feature
Your GMRS520 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 Up or Down button until the radio has moved
through 14 channels. The channel number on the display will be rapidly
cycling through the channels.
To turn off channel scanning:
Press and release either the Up or Down button.
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Auto Squelch Feature
The 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 your range limit.
Automatic Power Save Feature
Your radio has a unique circuit designed to dramatically extend the life of
the batteries. If there is no transmission within 5 seconds, your radio
switches to the Power Save mode. The radio is still able to receive
transmissions in this mode.
FCC LICENSING INFORMATION
The GMRS520 radio operates on Family Radio Service (FRS) as well as
General Mobile Radio Service (GMRS) frequencies and is subject to the
Rules and Regulations of the Federal Communications Commission (FCC).
The FCC requires that all operators using the GMRS frequencies obtain a
radio license before operating their equipment
For licensing information and applications forms, visit the FCC online at
www.fcc.gov/wtb/uls or call the FCC Hotline at: 1-800-418-FORM. If you
have any questions regarding the license application you can contact the
FCC direct at 1-888-CALL-FCC.
SPECIFICATIONS
Description
Channels 22 FRS/GMRS
Operating Frequency UHF 462.5500-467.7125 MHz
Power Source 3 AAA Alkaline Batteries
Output Power 500mW ERP maximum
Battery Life 55 Hours – (5/5/90 duty cycle)
Channel Frequency Chart (MHz)
Ch No Frequency
MHz Cross Reference
1 462.5625 GMRS & FRS 1
2 462.5875 GMRS & FRS 2
3 462.6125 GMRS & FRS 3
4 462.6375 GMRS & FRS 4
5 462.6625 GMRS & FRS 5
6 462.6875 GMRS & FRS 6
7 462.7125 GMRS & FRS 7
8 467.5625 FRS 8
9 467.5875 FRS 9
10 467.6125 FRS 10
11 467.6375 FRS 11
12 467.6625 FRS 12
13 467.6875 FRS 13
14 467.7125 FRS 14
15 462.5500 GMRS 11
16 462.5750 GMRS 8
17 462.6000 GMRS 12
18 462.6250 GMRS 9
19 462.6500 GMRS 13
20 462.6750 GMRS 10
21 462.7000 GMRS 14
22 462.7250 GMRS 15
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FCC INFORMATION
• This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
• Important: Changes or modifications to this unit not expressly approved
by Uniden could void your authority to operate this unit. Your radio is
set up to transmit a regulated signal on an assigned frequency. It is
against the law to alter the settings inside the radio to exceed those
limitations. Any adjustments to your radio must be made by qualified
technicians.
• To be safe and sure:
o Never open your radio’s case
o Never change or replace anything in your radio except the batteries.
• Your radio might cause TV or radio interference even when it is
operating properly. To determine whether your radio is causing the
interference, turn it off. If the interference goes away, your radio is
causing it. Try to eliminate the interference by moving your radio away
from the receiver. If you cannot eliminate the interference, the FCC
requires that you stop using the radio.
SAFETY GUIDELINES
• Audio Accessories: Do not operate the radio with audio accessories at
high volume levels. Hearing experts advise against continuous high
volume operation. If you experience a ringing in your ears, reduce the
volume level or discontinue use. Always make sure the radio is turned
off before plugging audio accessories into the accessory jack.
• Hazardous Environments: Do not operate the radio in hazardous
environments. Explosion or fire may result. Do not operate the radio
near unshielded electrical blasting caps. Under certain conditions, radios
can interfere with blasting operations and may cause an explosion. Turn
your radio OFF to prevent accidental transmission when in a blasting
area or in areas posted: “Turn off two-way radios.” Construction crews
often use remote control RF devices to set off explosives.
Care and Safety: To clean the radio, use a soft cloth dampened with water.
Do not use cleaners or solvents because they can harm the body of the unit
and leak inside, causing permanent damage. Use a dry, lint-free cloth to
clean the battery contacts. Do not submerge the unit in water. If the unit
gets wet, turn it off and remove the batteries immediately. Dry the battery
compartment with a soft cloth to minimize potential water damage. Leave
the battery compartment cover off overnight to ensure complete drying. Do
not use the radio until the unit is completely dry.