Model GMRS1072CH (FCC License Required)
Your wireless hand-held portable transceiver contains a low power
General Mobile Radio Service (GMRS)
transmitter. When the PTT button is pushed (or the VOX mode is enabled)
Never attempt to charge alkaline or dry cell batteries, as batteries may
it sends out radio frequency (RF) signals. The device is authorized to operate
burst causing personal injury and damage to the product. If rechargeable
at a duty factor not to exceed 50%. In August 1996, the Federal
batteries are used, such as Nickel Metal Hydride (NiMH), use only the
Communications Commissions (FCC) adopted RF exposure guidelines
supplied Audiovox-approved rechargeable batteries. Use of the Audiovox
with safety levels for hand-held wireless devices.
charger (also supplied) with other brands of batteries is not recommended,
as battery charging times will vary with different brands. Refer to the
To maintain compliance with the FCC' s RF exposure guidelines
Manufacturer's instructions for charging other brands of batteries.
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
In general, if handled improperly, batteries pose a risk of fire or burns. Do
headset accessory, use only the Audiovox supplied carry clip
not disassemble, crush, puncture, short external contacts, or dispose of
for this product and ensure that the antenna is at least 1 inch
the batteries in fire or water. Dispose of the batteries in a environmentally
(2.5 centimeters) from your body when transmitting. Use only
safe manner and recycle whenever possible.
the supplied antenna. Do not use your transceiver with a
damaged antenna. Unauthorized antennas, modifications, or
attachments could damage the transmitter and may violate
Replacement or substitution of transistors, diodes or other parts of a unique
nature, with parts other than those recommended by the manufacturer,
Liquid Crystal Display (LCD)
may cause a violation of the technical regulations of Part 15 of FCC Rules.
Your transceiver will only achieve its maximum operating range when
Monitor (M) Button
communicating with other transceivers across open and flat areas or
Detachable Carry Clip
Up Channel/Volume Button
between elevated points. Normally occurring environmental factors such
Push-To-Talk (PTT) Function
USE OF THIS RADIO WITHIN THE UNITED STATES REQUIRES AN FCC
as buildings, trees, terrain and weather, or interference from other radio or
GMRS LICENSE. AN INDIVIDUAL 18 YEARS OF AGE OR OLDER, WHO IS
electrical equipment, may have adverse effects on the transceiver's effective
NOT A REPRESENTATAIVE OF A FOREIGN GOVERNMENT, IS ELIGIBLE
range. These are not indicative of a fault condition.
TO APPLY FOR A GMRS SYSTEM LICENSE. YOU WILL NEED TWO FORMS
Avoid placing the GMRS1072CH radio transceiver for prolonged periods
Power On/Off Scan Button
FROM THE FCC: FCC FORM 159, AND FCC FORM 605 (MAIN FORM AND
of time in direct sunlight or temperatures below -4 F (-20 C) or above
SCHEDULE F). YOU CAN FIND THE FORMS ONLINE AT:
Microphone (MIC)/CHG Jack
Battery Charging Contacts
140 F (60 C).
HTTP://WWW.FCC.GOV/FORMPAGE.HTML, OR CALL 1-800-418-3676.
Place the rubber cover on jacks when not in use.
Model GMRS1072CH DISPLAY
Equipment and Accessories Supplied
Installing the batteries:
The following guidelines will improve performance and provide longer
operating times for the GMRS1072CH:
1. Radio (2)
Battery installation is made more convenient when the carry clip is either
1. Do not mix old and new batteries.
2. Owner's Manual (1)
rotated left or right to the horizontal position, or is removed. Simply rotate
the clip in either direction to the horizontal position. Be careful not to use
3. Rechargeable Batteries (8)
NiMH, P/N GMRS6BAT
2. The use of alkaline-type batteries is recommended to provide the
4. Dual Desk-Top Charger
excessive force. To remove the clip, press down on the release tab
longest operating time.
and pull the clip straight out from the radio body. Next, press down with the
5. AC Wall Adapter
3. Do not mix alkaline, standard (carbon-zinc) or rechargeable
thumb at the embossed arrow, slide the battery cover down and lift it away
Powering the transceiver:
from the compartment. Insert four AAA batteries (alternate positive ends (+)
Your GMRS1072CH radio transceiver operates on four AAA Alkaline batteries.
4. If the unit is not to be used for an extended period of time, remove the
toward the top of the transceiver, starting left-to-right.
Alkaline batteries will provide slightly better performance than rechargeable
batteries. Old or leaking batteries can cause damage to the unit and
batteries (purchased separately). Only Audiovox approved rechargeable
1. Roger Beep Tone Indicator: This icon appears when the Roger
will void the warranty.
batteries should be recharged in the radio transceiver using the supplied
Beep tone is on, and disapppears when the tone is not in use.
charging accessories. This will ensure optimum performance for the
2. Transmit Indicator: Icon appears when the unit is in the transmit
GMRS1072CH. Battery charging time is typically 16 - 20 hours.
mode (PTT button activated or VOX mode active).
Use of the Audiovox charging equipment with other brands of rechargeable
3. Receive Indicator: This icon appears when the unit is receiving a
batteries is not recommended as battery charging times will vary. Refer to
the manufacturer's instructions for charging other brands of batteries.
4. Beep Tone Indicator: Icon appears when beep button confirmation
tone is selected; icon disappears when tone is off.
OUTPUT : 9.0VDC
5. Large Segment Display: Indicates the channel number in use
AC WALL ADAPTER/
between 1 and 22.
There are three methods of powering the GMRS1072CH:
6. Scan Indicator: This function allows the user to scan a chanel
1. Alkaline Batteries.
every 0.5 second to search for a valid signal.
WARNING: Do not attempt to recharge Alkaline batteries.
7. HI/LO Indicators: Appropriate icon appears when the transmit
2. Audiovox Rechargeable Ni-MH Batteries - (Rechargeable NiMH
power is set to desired output power.
batteries and Charging Adapter included). Use only Audiovox
8. Battery Level Indicator: Icon indicates the battery charge level.
approved rechargeable batteries and charging equipment when
9. Small Segment Display: Indicates the CTCSS tone code (1-38)
charging batteries internal to the unit.
function is active for the main channel in use.
NOTE: To extend battery life, avoid overcharging the batteries.
10. Monitor Indicator: Icon appears when the Monitor (M) button is
1. Using thumb,
2. Then lift cover at
3. Insert four AAA batteries
NOTE : Only Audiovox approved
press down on
bottom to open.
(positive (+) end toward
pressed and the channel monitor function is activated.
3. Various Brands of Rechargeable Batteries - Use of the Audiovox
battery cover at
the top begining at left
11. Key Lock Indicator: Icon appears when the keypad is locked. This
charger(s) with other brands of rechargeable batteries is not
arrow and slide
side and alternating
function disables keys such as channel up/down, SCAN and MODE.
recommended, as battery charging times will vary with different
(P/N GMRS6BAT) can be recharged
positive terminals as
12. Voice Activated Transmission (VOX) Indicator: This function
brands of batteries. Refer to the manufacturer's instructions for
in the radio transceiver
DESKTOP CHARGING STAND
charging other brands of batteries.
allows hands-free conversation. The icon appears when the VOX
PART NUMBER GMRS10DS
mode is activated.
volume. When in function edit mode this button will be used to adjust the
GMRS1072CH OPERATIONAL MODES
Monitor/Keylock Button (2)
This button is used to to check activity on the current frequency before
In order to communicate with other GMRS/FRS units, both the transmit-
transmitting. Check activity by pressing the Monitor (M) Button longer
ting and receiving party must be on the same frequency.
MODE/VOX Button (12)
than 2 seconds; the
icon will apppear on the display and you will hear
The GMRS1072CH has 22 channels (frequencies) indicated by the large
This button is used to select various feature settings in the GMRS and FRS
static if frequency is clear.
Do not transmit if you hear conversation.
digits on the LCD display panel. Channels 1 through 7 are the shared
modes. When pressed and held for 3 seconds, the VOX mode is entered
Hold down the Monitor Button again longer than 2 seconds and the
GMRS/FRS channels. Channels 8-14 are FRS only channels, while
and the VOX icon appears on the display.
icon will disapppear from the display.
channels 15-22 are assigned GMRS only channels. If an FRS only
The monitor function will temporarily bypass the squelch setting and play
channel (8-14) has been selected, the HI or LO icon will not be displayed
External Speaker (SPK)/ Microphone (MIC)/CHG Jack (6)
(GMRS channels only)
all signals on a given channel. This feature is useful when communicating
This jack accepts both the optional Audiovox earbud/microphone
on the LCD panel; otherwise, for channels 1-7 (GMRS/FRS) and 15-22
with other parties at extreme range.
(GMRS only) the HI or LO icon will be displayed. Communication with
connector and the supplied wall charging adapter. For additional
By pressing the monitor button momentarily, the keylock icon (
(on or oF)
equipment and accessories for the GMRS1072CH, refer to page 7
Audiovox GMRS/FRS and compatible units is possible on these 22
appear to confirm that the MODE, SCAN and channel up/down buttons
channels. Before transmitting on the selected channel, press the Monitor
and/or visit the Audiovox web site at www.audiovox.com.
have been disabled.
(M) Button (2) to check the activity on that channel. If there is activity
(on or oF)
Scan Button (13)
on the selected channel, change to another channel that is clear.
Push To Talk (PTT) Button (4)
With the unit in standby mode, press the Power On/Off Button momentarily
Pressing and holding this button will allow you to speak to any transceiver
To differentiate between operating modes, look for HI or LO
To change the channel:
to enable or disable the scan function; SCAN will appear on the display.
that is set to the same channel and privacy code setting as yours. Hold the
indication below the battery power level indicator when in GMRS
- From GMRS/FRS standby mode, press the MODE button (12)
transceiver approximately 1 to 2 inches from your face as you speak into
mode. Refer to the appropriate section of this manual for de-
once; the channel number flashes.
Operating Modes and Features
the built in microphone (9). After you have finished speaking, release the
tailed operating instructions for each mode. Channels 1 through
- Press the Up Button (10) briefly to move to the next higher main
PTT Button to allow reception of incoming signals. It is not possible to
7 are shared GMRS/FRS. Channels 8 through 14 are FRS only,
and channels 15 through 22 are GMRS only.
transmit and receive at the same time. Whenever the button is pressed,
- Press the Down Button (11) briefly to move to the next lower main
- Press and hold the Power On/Off button for 2 seconds to turn on
the transmit signal icon (TX) will appear in the upper left corner of the
display. Releasing the button allows the unit to revert to standby mode.
- Press the PTT button momentarily to confirm selection.
Power On-Off/SCAN Button (13)
- Press the MODE button so the Channel number flashes.
When receiving an incoming signal, the (RX) icon will appear.
- Select the desired channel with the Up (10) and Down (11) Buttons.
Press and hold the PWR on/off button for at least 2 seconds. You will hear
CTCSS Mode (Sub-Channel) Selection
The PTT Button can also be used as a two-way call ringer. Pressing the
- When receiving a call, the (RX) icon appears to indicate an incoming
a confirming melody to indicate the unit is on. To turn the unit off, press and
button twice quickly will call another party on the same channel.
The Coded Tone Controlled Squelch System (CTCSS) has 38 Sub-Fre-
hold the button for at least 2 seconds.
The transmit icon (TX) will be displayed for 3 seconds and then disappear.
- Press and hold the PTT button (4) to transmit, then speak into the
This feature allows you to utilize the coded squelch tones (01-38) within
Adjusting the Volume (11, 10)
Up Channel/Volume Button (10)
microphone clearly and slowly.The Transmit icon (TX) appears on
a main channel and enables you to communicate with another party on
With the unit powered on, press the Up Channel/Volume Button (
In the standby mode, pressing this button will increment the listening
the display while the button is pressed.
the same main channel using the same subcode. (This filters out
increase volume and the Down Channel/Volume button (
) to decrease
- Release PTT Button (4) to receive.
volume. When in function edit mode this button will be used to adjust the
unwanted transmissions from the same main channel). Since there are
volume. The display will indicate the current volume level ( U ) followed by
- Communication can only be accomplished when the channel and
38 CTCSS Sub-channels for each main channel, a different subcode
the number ( 0-7 ). As volume is increased upward, the unit will beep at
CTCSS tone frequency of at least two parties are the same.
Down Channel/Volume Button (11)
may be selected for each of the 22 channels.
each step, and vice-versa. When the minimum and maximum volume
- The CTCSS subcode (01-38) will be displayed on the LCD panel if the
In the standby mode, pressing this button will decrement the listening
settings are reached, a unique tone will sound.
CTCSS tone frequency function is enabled (not oF).