Audiovox GMRS8000-2 User manual

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General Mobile Radio Service (GMRS)
Model :GMRS8000-2
Owner’s Manual
Customer Service
1-800-290-6650
Released: 1-30-04
WB
MODE
S/VOX 
LOHI BUSY

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CAUTION
SAFETY INFORMATION
Your wireless hand-held portable transceiver contains a low power
transmitter. When the PTT button is pushed (or the VOX mode is enabled)
it sends out radio frequency (RF) signals. The device is authorized to operate
at a duty factor not to exceed 50%. In August 1996, the Federal
Communications Commissions (FCC) adopted RF exposure guidelines
with safety levels for hand-held wireless devices.
Important: To maintain compliance with the FCC’ s RF exposure guidelines
hold the transmitter at least 1 inch (2.5 centimeters) from your
face and speak in a normal voice, with the antenna pointed up
and away. If you wear the handset on your body while using the
headset accessory, use only the Audiovox supplied carry clip
for this product and ensure that the antenna is at least 1 inch
(2.5 centimeters) from your body when transmitting. Use only
the supplied antenna. Do not use your transceiver with a
damaged antenna. Unauthorized antennas, modifications, or
attachments could damage the transmitter and may violate
FCC regulations.
Performance:
Your transceiver will only achieve its maximum operating range when
communicating with other transceivers across open and flat areas or
between elevated points. Normally occurring environmental factors such
as buildings, trees, terrain and weather, or interference from other radio or
electrical equipment, may have adverse effects on the transceiver’s effective
range. These are not indicative of a fault condition.
Avoid placing the GMRS8000-2 radio transceiver for prolonged periods of
time in direct sunlight or temperatures below -4°F(-20°C) or above
140°F (60°C).
Place the rubber cover on jacks when not in use.

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WARNINGS:
Battery Care
Never attempt to charge alkaline or dry cell batteries, as batteries may
burst causing personal injury and damage to the product. If rechargeable
batteries are used, such as Nickel Metal Hydride (NiMH), use only Audiovox-
approved rechargeable batteries. Use of the optional Audiovox charger
with other brands of batteries is not recommended, as battery charging
times will vary with different brands. Refer to the Manufacturer’s instructions
for charging other brands of batteries.
Battery Disposal
In general, if handled improperly, batteries pose a risk of fire or burns. Do
not disassemble, crush, puncture, short external contacts, or dispose of
the batteries in fire or water. Dispose of the batteries in a environmentally
safe manner and recycle whenever possible.
FCC WARNING
Replacement or substitution of transistors, diodes or other parts of a unique
nature, with parts other than those recommended by the manufacturer,
may cause a violation of the technical regulations of Part 15 of FCC Rules.
GMRS LICENSE:
USE OF THIS RADIO WITHIN THE UNITED STATES REQUIRES AN FCC
GMRS LICENSE. AN INDIVIDUAL 18 YEARS OF AGE OR OLDER, WHO IS
NOTA REPRESENTATAIVE OF A FOREIGN GOVERNMENT, IS ELIGIBLE
TOAPPLY FORA GMRS SYSTEM LICENSE. YOU WILLNEED TWO FORMS
FROM THE FCC: FCC FORM 159, AND FCC FORM 605 (MAIN FORM AND
SCHEDULE F). YOU CAN FIND THE FORMS ONLINE AT:
HTTP://WWW.FCC.GOV/FORMPAGE.HTML, OR CALL 1-800-418-3676.
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1. Battery Door
2. Monitor/Backlight Button
3. Detachable Carry Clip
4. Push-To-Talk (PTT) Button
5. Antenna
6. External Speaker(SPK)/Micro-
phone (MIC)/Charge (CHG)
Jack
7. Built-in Speaker
8. Liquid Crystal Display (LCD)
Model GMRS8000-2 (FCC License Required)
9. Built-in Microphone
10. Up Channel/Volume Button
11. Down Channel/Volume
Button
12. MODE/Weather Button
13. Power On/Off Keylock
Button
14. SCAN/VOX Button
15. White Flashlight LED
16. Flashlight Enable Button
17. Battery Charging Contacts
1
2
3
4
58
11
9
12
6
14
10
13
7
3
(REF)
1
(REF)
17
15
16
PTT
M
WB
MODE
S/VOX 
LOHI BUSY

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Model GMRS8000-2 DISPLAY
1. Beep Tone Indicator: Icon appears when beep button confirmation
tone is selected; icon disappears when tone is off.
2. Key Lock Indicator: Icon appears when the keypad is locked. This
function disables keys such as channel up/down, SCAN and MODE.
3.Monitor Indicator: Icon appears when the Monitor (M) button is
pressed and the channel monitor function is activated.
4. Signal Strength Indicator: Icon appears when a signal is being
transmitted. The icon consists of five bars to indicate transmit signal
power level.
5. HI/LO Indicators: Power level indicator appears when the transmit
power is set to desired output power on the GMRS channels.
6. Large Segment Display: Indicates the channel number in use.
7. Scan Indicator: This function allows the user to scan a channel (and
tone code, if present) every .5 second to search for a valid signal.
8.RogerBeep Tone On/Off Indicator: This icon appears when the
Roger Beep tone is on, and disappears when tone is not in use.
9. Battery Level Indicator: Icon indicates the battery charge level.
10.Signal Receive Indicator: BUSY icon appears when a signal is being
received.
11. Weather Mode Indicator: Icon will be on steady when in the weather
band mode. When in the GMRS/FRS mode, the icon will blink when
the alert is active
1
2
3
4
5
6
7
8
9
10
11
12
13
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LOHI BUSY

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12.Small Segment Display: Displays the CTCSS tone option for each
main channel from 01-38.
13.Dual Watch Mode Indicator: Indicator appears when dual watch
mode is active.
14.Voice Activated Transmission (VOX) Indicator: This function
allows hands free conversation. The indicator appears when the
VOX mode is activated.
Equipment and Accessories Supplied
1. Radio (2) GMRS8000-2
2. Owner’s Manual 128-7030
Optional Equipment and Accessories
1. Desktop Charger GMRS8DS
2. AC Wall Adapter GMRS8AC
3. Rechargeable (NiMH) Batteries GMRS8BAT
4. Earbud with Remote PTT Button GMRSBHST8
Powering the transceiver:
Your GMRS8000-2 radio transceiver operates on five AAA Alkaline batteries.
Alkaline batteries will provide slightly better performance than rechargeable
batteries (purchased separately). Only Audiovox approved rechargeable
batteries should be recharged in the radio transceiver using the optional
charging accessories. This will ensure optimum performance for the
GMRS8000-2. Battery charging time is typically 16 - 20 hours. Use of the
optional Audiovox charging equipment with other brands of rechargeable
batteries is not recommended as battery charging times will vary. Refer to
the manufacturer’s instructions for charging other brands of batteries.
Batteries
There are three methods of powering the GMRS8000-2:
1. Alkaline Batteries.
WARNING: Do not attempt to recharge Alkaline batteries.
2. Audiovox Rechargeable Ni-MH Batteries - (Rechargeable NiMH
batteries and Charging Adapter NOT included). Use only Audiovox
approved rechargeable batteries and charging equipment

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2. Slide the cover
down and then lift
cover at bottom to
open.Remove
cover.
3. Insert five AAA batteries
(positive (+) end toward
right side begining at top
and alternating positive
terminals as shown).
1. Using thumb,
press down on
battery cover at
arrow and slide
cover down to
open.
(purchased separately) when charging batteries internal to the
unit.
NOTE: To extend battery life, avoid overcharging the batteries
3. Various Brands of Rechargeable Batteries - Use of the optional
Audiovox charger with other brands of rechargeable batteries is
not recommended, as battery charging times will vary with
different brands of batteries. Refer to the manufacturer’s instruc-
tions for charging other brands of batteries.
Installing the batteries:
Battery installation is made more convenient when the carry clip is
removed. To do this, release the spring latch securing the clip to radio
and slide the clip downward and away from the radio body. Next, press
down with the thumb at the embossed arrow, slide the battery cover down
and lift off the battery cover. Insert five AAA batteries (alternate
positive ends (+) toward the right side of the transceiver (starting top-to-
bottom).
RELEASE
BUTTON
BATTERY
COVER
CARRY
CLIP
COVER
ARROW
POSITIVE
TERMINALS
+
+
+
+
+

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The following guidelines will improve performance and provide longer
operating times for the GMRS8000-2:
1. Do not mix old and new batteries.
2. The use of alkaline-type batteries is recommended to provide the
longest operating time.
3. Do not mix alkaline, standard (carbon-zinc) or rechargeable
batteries.
4. If the unit is not to be used for an extended period of time, remove the
batteries. Old or leaking batteries can cause damage to the unit and
will void the warranty.
GMRS8000-2 OPERATIONAL MODES
WEATHER BAND
WEATHER BAND
SELECT
CHANNEL
SELECT
ROGER
BEEP
BUTTON
BEEP
DUAL
WATCH
VOX LEVEL
SELECT
CALL
SELECT
POWER
SELECT (GMRS Channels
Only)
GMRS/FRS BAND
CTCSS
SELECT
CHANNEL
SELECT
NOTE: 1. To switch between GMRS/FRS
and Weather Band modes,
press and hold the MODE/WB
button for 3 seconds. Refer to
the appropriate section of this
manual for detailed operating
instructions for each mode.
2. To enter the VOX mode, press
and hold the S/VOX button for 3
seconds.

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Controls:
LED Flashlight Button (16)
Press this button on the right side of the Transceiver to light the white LED
(15) on top of the unit, thereby activating the built-in flashlight function.
Power On/Off/Keylock (13) Button
Press and hold the power on/off button ( ) for at least 2 seconds. You
will hear a confirming melody to indicate the unit is on. To turn the unit
off, press and hold the button for at least 2 seconds. When the unit is on
and the button is pressed for less than 2 seconds, the keylock icon
( ) will appear to disable the MODE, SCAN and channel up/down
buttons.
Adjusting the Volume (10, 11)
With the unit powered on, press the Up Channel/Volume button ( ) to
increase volume and the Down Channel/Volume button ( ) to decrease
volume. The display will indicate the current volume level between 1 and 7
by the small number in the icon ( UL5 ).
Monitor/Display Backlight Button (2)
This button is used to check activity on the current frequency before
transmitting. Check activity by pressing the Monitor (M) Button longer
than 2 seconds; the icon will apppear on the display and you will
hear static if frequency is clear.
Do not transmit if you hear conversation.
Hold down the Monitor Button again longer than 2 seconds and the
icon will disapppear from the display.
The monitor function will temporarily bypass the squelch setting and play
all signals on a given channel. This feature is useful when communicating
with other parties at extreme range.
By pressing the monitor button momentarily, the LCD backlight is turned
on accompanied by a beep tone (if enabled); the LCD backlight will turn off
automatically in about 5 seconds, or when the monitor button is pressed
momentarily once again.
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Push To Talk (PTT) Button (4)
Pressing and holding this button will allow you to speak to any transceiver
that is set to the same channel and privacy code setting as yours. Hold the
transceiver approximately 1 to 2 inches from your face as you speak into
the built in microphone (9). After you have finished speaking, release the
PTT Button to allow reception of incoming signals. It is not possible to
transmit and receive at the same time. The Transmit Signal Level indicator
( ) will display the relative strength of the transmitted signal. When
receiving an incoming signal, the BUSY icon will appear in the upper right
quadrant of the display. The PTT button can also be used as a two-way call
ringer. Pressing the button twice quickly will call another party on the same
channel.
Up Channel/Volume Button (10)
In the standby mode, pressing this button will increase the listening volume.
When in function edit mode this button will be used to adjust the unit’s
settings.
Down Channel/Volume Button (11)
In the standby mode, pressing this button will decrease the listening
volume. When in function edit mode this button will be used to adjust the
unit’s settings.
Mode Button (12)
This button is used to select the various feature settings in the GMRS/FRS
or Weather band modes. Holding the MODE button longer than 2 seconds
will toggle between the GMRS/FRS and Weather band modes.
External Microphone (MIC)/Speaker (SPK)/(CHG) Jack (6)
This jack accepts an Audiovox headset/microphone connector, or the
optional Charging Adapter connector. For optional equipment and
accessories for the GMRS8000-2 visit the Audiovox web site at
www.audiovox.com.
Scan/VOX Button (14)
Press this Button momentarily to enable or disable the scan mode. Press
and hold the button for more than 2 seconds to enable or disable the VOX

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mode; the VOX icon will appear in the bottom right corner of the display
when enabled.
Operating Modes and Features
GMRS Operation:
- From GMRS/FRS standby mode, press and hold the ( ) button for
2 seconds to turn on power.
- Press the MODE button so the Channel number flashes.
- Select the desired channel with the Up (10) and Down (11) Buttons.
When receiving a call, the BUSY icon appears to indicate the incom-
ing signal.
- Press and hold the PTT button (4) to transmit, then speak into the
microphone clearly and slowly. The Transmit Signal Level indicator
() will display the relative strength of the transmitted
signal.
- Release PTT Button (4) to receive.
- Communication can only be accomplished when the channel and
CTCSS tone frequency of at least two parties are the same.
- The CTCSS small segment display will appear next to the main
frequency channel on the display if the CTCSS tone frequency
function is enabled.
Channel Selection
In order to communicate with other GMRS units, both transmitting and
receiving party must be on the same frequency. The GMRS8000-2 has 22
channels (frequencies) indicated by the large digits on the LCD display
panel. Channels 1 through 7 are the shared GMRS/FRS channels.
Channels 8-14 are FRS only channels, while channels 15-22 are as-
signed GMRS only channels. If an FRS only channel (8-14) has been
selected, the HI or LO indicator will not be displayed on the LCD panel;
otherwise, for channels 1-7 (GMRS/FRS) and 15-22 (GMRS only), the
HI or LO indicator will be displayed. Communication with Audiovox FRS
and compatible units is possible on the shared and FRS only channels.

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Before transmitting on the selected channel, press the Monitor (M) Button
(2) to check the activity on that channel. If there is activity on the selected
channel, change to another channel that is clear.
To change the channel:
- From GMRS/FRS standby mode, press the MODE button (12) once
or until the channel number flashes.
- Press the Up Button (10) briefly to move to the next higher main
channel number.
- Press the Down Button (11) briefly to move to the next lower main
channel number.
- Press the PTT button momentarily to confirm selection.
CTCSS Mode (Sub-Channel) Selection
The Coded Tone Controlled Squelch System (CTCSS) provides 38 Sub-Fre-
quencies. This feature allows you to utilize the coded squelch tones (01–
38) within a main channel, and enables you to communicate with another
party on the same main channel using the same subcode. (This filters out
unwanted transmissions without the same coded squelch tone). There
are 38 CTCSS Sub-channels for each main channel. A different
subcode may be selected for each of the 22 channels.
To change the CTCSS Sub-channel:
- From GMRS/FRS standby mode, press the MODE Button twice; a
flashing oF or sub-channel number is displayed. If oF is displayed,
press the Up or Down button to enable the CTCSS mode.
- Then press the Up or Down button to select the desired sub-channel
for use (01-38).
- Press the PTT button momentarily to confirm selection.
The CTCSS mode can be turned off by selecting the oF icon as the setting.
NOTE: To communicate with other GMRS/FRS units, they must be
switched to the same channel and CTCSS subcode. To commu-
nicate with other GMRS/FRS units that do not have subcodes,
switch your unit to the same channel with the subcode set to oF.

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The CTCSS subcodes do not prevent others from hearing your
transmission. This will only allow you to ignore all traffic on a
given channel not using the same subcode.
Transmit Power Selection Mode
This feature permits selection of the transmitting power level to high
or low. When operating on FRS only channels (8-15), no power selec-
tion is possible or is displayed. Using low power, the unit will have a
lower transmit range, but battery life will be increased.
To access the transmitter power selection function:
- From GMRS/FRS standby mode (shared channels 1-7 or GMRS only
channel (15-22) selected), press the MODE Button three times until
the power HI or Lo indication appears with a flashing Po indication
on the display.
- Press the Up or Down button to toggle between the High and Low se-
lections.
- Press the PTT button momentarily to confirm selection.
VOX Sensitivity Level Selection
This selection enables you to set the sensitivity level to compensate for
ambient noise in your immediate area. A VOX sensitivity of 3 is the most
sensitive, and should be used in a relatively quiet surrounding. A VOX
sensitivity of 1 is the least sensitive and should be used in a noisy sur-
rounding.
To set the VOX sensitivity level:
- Press the MODE button 4 times (3 times for FRS) until the VOicon
appears on the display accompanied by the flashing VOX icon and the
numeral 1, 2or 3.
- Press the Up or Down button to select the 1-3 VOX level sensitivity.
- Press the PTT button momentarily to confirm the VOX selection.
- The VOX icon will disappear from the display unless VOX mode is
enabled.
Dual Watch Mode
This feature allows you to monitor two channels at the same time. While in
dual watch mode, the unit will continuously monitor both the primary and

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dual watch channel. Received signals will be played for 5 seconds, then
the unit will resume scanning the two channels. Pressing the PTT button
during a received transmission will set the unit to transmit on the same
channel. Pressing the PTT button when no signal is received will set the
unit to transmit on the primary channel.
To set the Dual Watch Mode:
- From GMRS/FRS standby mode, press the MODE button 5 times (4
times for FRS); DW appears flashing on the display. If the dual watch
mode is off, the oF icon will also appear flashing.
- To enable the dual watch mode, press the Up or Down button; the dual
watch channel number will flash and start to increase or decrease as
the Up or Down button is pressed.
- To select a subcode for the dual watch channel, press the MODE
button while the selected dual watch channel is flashing. Then use the
Up and Down buttons to select the desired CTCSS subcode
- Press the PTT button momentarily to confirm selection of the dual
watch channel. The display will now alternate between the primary
channel and the dual watch channel just selected.
NOTE: Pressing the PTT button during dual watch mode will trans-
mit on the primary channel and suspend dual watch opera-
tion for 20 seconds. Dual watch mode will then resume.
- Momentarily press the SCAN button to exit the dual watch mode.
Key Tone
This feature allows the transceiver to sound a confirmation tone whenever
the following keys are pressed: Monitor (M) Button, Up/Down Buttons, MODE
Button or SCAN Button.
To turn the key tones on or off:
- From GMRS/FRS standby mode, press the MODE Button 6 times (5
times for FRS) until the Bell ( ) icon flashes, and on or oF appears on
the display.
- Press the Up or Down Button to toggle the key tone feature On or Off.

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- Press the PTT button momentarily to confirm selection.
When the key tone feature is on, the Bell icon appears steady on the
display, and the beep tones sound in response to button activation.
Roger Beep Tone
The Roger Beep is a tone which is automatically transmitted whenever the
PTT button is released. This tone alerts the receiving party that the trans-
mission has been terminated intentionally.
To enable and disable the Roger Beep tone:
- From GMRS/FRS standby mode, press the MODE Button 7 times (6
times for FRS) until the flashing Roger Beep icon ( ) and on or oF
appears on the display.
- Press the Up or Down button to select the tone on or off as desired.
- When enabled, the tone icon ( ) appears steady on the display.
- Press the PTT button momentarily to confirm selection.
Call Ringer Selection Mode
The transceiver provides 3 user-selectable call ringer melodies to alert
you to an incoming call.
To select your favorite call ringer melody:
- From GMRS/FRS standby mode, press the MODE Button 8 times (7
times for FRS). CA will appear on the display, together with a flashing
number between 01 and 03, and an appropriate call ring.
- Press the Up or Down Button to preview and hear the 3 available call
melodies.
- Press the PTT button momentarily to confirm selection.
Channel Scan Operation
This feature allows you to monitor all channels automatically for valid
signals. While scanning, you can transmit and receive. When a signal is
received, the scan is interrupted and will return to scan mode 5 seconds
after reception is terminated.

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NOTE: While the scan function is active, the MODE button will be
inoperative. The scan mode will reduce the overall battery life
since the battery save function is overridden.
To enable the channel scan mode:
- From GMRS/FRS standby mode, momentarily press the SCAN But
ton; (SCAN) will appear on the LCD display.
- The radio will display each channel (1-22) in ascending order as the
scan mode operates to find an active main channel.
- If the unit doesn’t find any signals and you want to transmit, press the
PTT button to return to home channel operation. The transceiver will
automatically resume scanning approximately 5 seconds after the
communication is completed.
- If there is no activity and you want to leave the scan mode, press the
SCAN button momentarily and the unit will return to normal operation;
the SCAN icon will disappear from the LCD display.
Auto Key Lock Selection Mode
This feature prevents accidental channel change to the preferred settings
of the unit. The Auto Key Lock function temporarily disables the MODE, Up/
Down and SCAN Buttons.
To access the Auto Key Lock selection menu:
- From GMRS/FRS standby mode, press and hold the Power Button for
2 seconds to enable the Auto Key lock function; the unit will beep once
and the lock ( ) icon appears on the display.
- The Power, PTT, and Monitor Buttons are not effected.
- To unlock the Auto Key function, press and hold the Power button for
2 seconds; the unit beeps once and the lock icon ( ) disappears
from the display.
NOTE: If the unit is turned off while Key Lock is on, the Key Lock
mode will still be in effect when the unit is again turned on.

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VOX Enable Operation
This option enables you to have hands-free conversation. Your voice or
nearby sound is detected and the radio transmits without the need to
press the PTT button.
To enable VOX operation:
- From GMRS/FRS standby mode, press the SCAN button for 3 sec-
onds or until the VOX icon appears steady on the display.
- Press the PTT button momentarily to confirm VOX enable mode.
- To disable the VOX mode, press the SCAN button for 3 seconds or
until the VOX icon disappears from the display.
Weather Band Operation
Channel Selection
This feature provides access to 10 channels within the weather band (7
NOAA channels and 3 Canadian marine channels). To select a weather
channel, the unit must be in the weather channel mode. Press and hold
the MODE button for at least 3 seconds; the weather alert icon ( ) will
appear, together with a channel number in the band. Momentarily press
the MODE button (12) once; the channel number flashes.
To change the channel:
- Press the Up Button (10) briefly to move to the next higher
main channel number.
- Press the Down Button (11) briefly to move to the next lower main
channel number.
NOTE: When the weather band operation mode is entered the transceiver
will bypass the squelch setting and open the channel.
Weather Alert Mode
The weather alert mode notifies the user of unusual weather situations
when the radio is operating in the GMRS/FRS mode.
To access the weather alert function:
- From Weather Band standby mode, press the MODE button once to
access the weather channels as instructed above, and use the Up
or Down Button to select the desired channel.

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- Momentarily press the MODE button again to access the weather alert
function; the weather icon ( ) and AL on or oF appear flashing on
the display.
- Use the Up or Down buttons to enable (on)/disable (oF) the alert
function. The weather icon will stop blinking on the display in the
GMRS mode when the alert is disabled.
- Press the PTT Button to confirm your selection.
- Press and hold the MODE button for at least 2 seconds to exit the
weather function.
NOTE: When the unit is the GMRS/FRS or Weather Band mode, if a
weather alert signal is received, the unit will generate a warn-
ing tone.
Battery Alert
When the battery icon is empty ( ) and flashing on the display, re-
charge unit or install fresh batteries.
NOTES FOR GOOD COMMUNICATION
1 . The GMRS8000-2 22 channels are shared on a ‘take turns’ basis.
This means other groups may be talking on any of the channels.
A common code of ethics/courtesy is to switch to another vacant
channel and not to attempt to talk over someone who is already using
the channel you first selected.
2. The GMRS8000-2 has been designed to maximize performance
and improve transmission range in the field. To avoid interference,
it is recommended that you do not use the units closer than 5 feet
apart.
3. For best transmission results, always keep your mouth about 2-3
inches from the microphone (9) and speak slowly in a normal voice.
4. To increase battery life, avoid features such as Scan and Dual
Watch. These features will reduce operating time considerably.
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Warning
•Do not operate the transceiver unless you are licensed to do so.
•Remove the batteries from the transceiver if it is not expected to be used
for long periods. This will eliminate the possibility of chemicals leaking
from the batteries and corroding the transceiver.
•Avoid exposing the transceiver to water or extremes of temperature.
•Do not use this device in or near a mining facility, which uses remotely
triggered explosives or in areas labeled “Blasting Area”. Premature or
accidental detonation may result.
•Do not attempt to modify or in any way increase the output of this
transceiver. Its output is designed to meet the legal limits set by the FCC.
•Do not use this device or change its batteries in potentially explosive
atmospheres as sparks in such areas could result in an explosion.
•Turn your transceiver off wherever posted notices restrict the use of radios
or cellular telephones. Facilities such as hospitals may use equipment
that is sensitive to RF energy.
•Turn your transceiver off on board aircraft when requested to do so.
•Do not place your radio in front of a vehicle’s air-bag. If the air-bag
deploys, it could propel the transceiver like a projectile causing bodily
injury.
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