Transmit Power Selection Mode (GMRS Channels Only)
This feature permits selection of the transmitting power level to high or
low when using channels 1-7 and 15-22. Using low power, the unit will
have a lower transmit range, but battery life will be increased.
- From GMRS/FRS standby mode, press the MODE Button twice; a
flashing
oF
or sub-channel number is displayed.
- Press the Up or Down button to select the desired sub-channel for
use (
01-38
).
- Press the PTT button to confirm selection.
To change the CTCSS Sub-channel:
The CTCSS mode can be turned off by selecting the
oF
icon as the setting.
- From GMRS standby mode, press the MODE Button 3 times until
the
Po
indication appears flashing on the display with a flashing
HI
or
LO
indication.
- Press the Up or Down button to toggle between the HI and LO
selections.
To access the transmitter power selection function:
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 units that do not have subcodes, switch
your unit to the same channel with the subcode set to
oF
.
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.
NOTE:
You will find that for the majority of your needs, the low-power
setting will provide adequate communications on all channels;
there should seldom be any need to use high power, except in
situations where you need absolute maximum range. Using low
power will greatly extend battery life. We suggest you experi-
ment with switching between low and high power.
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 approxi-
mately 5 seconds after reception is terminated.
- From GMRS/FRS standby mode, momentarily press the Power
On/Off Button;
SCAN
will appear on the LCD display
- The radio will automatically display each channel (1-22) in ascending
order to find an active main channel.
- When the unit doesn’t find any signals and you want to transmit,
press the PTT Button to return to primary channel operation. The
transceiver will automatically resume scanning approximately 10
seconds after the communication is completed.
- If there is no activity and you want to leave the scan mode, press
the Power On/Off button momentarily and the unit will return to normal
operation; the
SCAN
icon will disappear from the LCD display.
To enable the channel scan mode:
NOTE:
While the SCAN mode is active, the MODE button is inopera-
tive. In addition, the scan mode will reduce the overall battery
life since the battery save function is overridden.
Roger Beep Tone
The Roger Beep is a tone which is automatically transmitted whenever the
PTT button is released and the tone is enabled. This tone alerts the
receiving party that the transmission has been terminated intentionally.
- From GMRS standby mode, press the MODE Button 5 times (in
FRS mode, 4 times) until the flashing Roger Beep icon ( ) appears
with o
n
or
oF
.
- 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.
To enable and disable the Roger Beep tone:
- From GMRS/FRS standby mode, press and hold the MODE button
for 3 seconds, or until the
VOX
icon appears on the display.
- To terminate
VOX
operation, press and hold the MODE button for at
least 3 seconds; the VOX indication will disappear.
Call Ringer Selection Mode
The transceiver provides a transmit call ring melody at the receiving
unit to alert you to an incoming call.
- From GMRS/FRS standby mode, press the PTT button twice in
quick succession; a call ring melody will sound at the receiving unit
to alert the user to an incoming transmission, provided that unit is
equipped with this capability and is set to the same channel.
To activate the call ringer melody:
NOTES FOR GOOD COMMUNICATION
Warning
1. The GMRS1572CH 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 GMRS1572CH 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, use the SCAN feature sparingly. This
feature will reduce operating time considerably.
• 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.
• 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.
Battery Alert
When the battery icon ( ) blinks steadily on the LCD panel,
recharge the unit or install fresh batteries.
Troubleshooting
Techenical Specifications:
General
Weak batteries
Charge or replace batteries
Adjust the transceiver’s
settings to match those
settings of the target
transceiver
Increase volume level
Release PT Button
Excessive radio interference
on a particular channel
Obstruction of radio signal
Change to a different
channel
Avoid operating in or near
large buildings or vehicles
Batteries extremely
discharged
Charge or replace batteries
CTCSS privacy mode
not on
Turn on the CTCSS privacy
mode and set code number
to match the setting of the
target transceiver.
Reception of
unwanted signals
Interference from
electronic devices such
as computers or TVs
Turn the devices off or move
farther away from them.
Problem
Possible cause
Correction
No transmission
while pressing
the PTT Button
Weak or no
signal received
Weak batteries
Unit beeps, but
will not function
when turned on
Charge or replace batteries
Incorrect battery polarity
Channel and privacy
code not set the same
as target transceiver
Volume level too low
PTT Button inadvertently
pressed
Install the batteries
following the directions in
paragraph Installing the
Batteries.
12.5kHz
38 for each main channel
2.25” W x 6.06” H x 1.125” D
(56.0 mm x 154.0 mm x 28.5 mm)
Refer to frequency chart on next page.
Refer to frequency chart on next page.
Refer to frequency chart on next page.
Frequency Range:
Channels 1 through 7 are
shared with FRS radios.
Channels 8 through 14 are
FRS only.
Channels 15 through 22 are
GMRS only.
Channel Spacing
Privacy Codes
Dimensions (W x H x D)
(Without Antenna)
Power Supply
Alkaline Batteries, AAA (4), 6 VDC
16 hours Low Power
12 hours High Power
Power Source
Operating Time
(Transmit: Receive: Standby)
(5: 5: 90 ratio)
(Based on alkaline batteries)
Receiver
>-119 dBm
> 0.3 Watt maximum (12 Ohm)
< 5% (1 kHz 70%)
Useable Sensitivity
Maximum Audio Output Power
Modulation Distortion
Transmitter
1.0 Watts maximum (high power)
0.45 Watt maximum (low power)
+/- 2.5 kHz
< 5% (1 kHz 70%)
RF Output Power
Maximum Deviation
Modulation Distortion
WHEN USING RADIOS PRODUCED BY OTHER MANUFACTURERS,
COMPARE CHANNEL FREQUENCIES FOR COMPATIBILITY.
NOTE
CHANNELCROSS REFERENCE
FOR 15 CHANNEL GMRS/FRS
RADIO TO 22 CHANNEL
GMRS/FRS RADIO
1
2
3
4
5
6
7
11
8
12
9
13
10
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
CHANNELCROSS REFERENCE FOR 14 AND 15 CHANNEL GMRS/FRS
RADIO TO 22 CHANNEL GMRS/FRS RADIO
CHANNELCROSS REFERENCE
FOR 14 CHANNEL FRS
RADIO TO 22 CHANNEL
GMRS/FRS RADIO
15 CHANNEL
GMRS
22 CHANNEL
FRS/GMRS
C
H
A
N
N
E
L
S
N
O
T
A
V
A
IL
A
B
L
E
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
14 CHANNEL
FRS
22 CHANNEL
FRS/GMRS
C
H
A
N
N
E
L
S
N
O
T
A
V
A
IL
A
B
L
E
Continuous Tone Coded Squelch System Tone
Frequencies (in Hz)
CTCSS
Freq. Hz
CTCSS
Freq. Hz
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
67.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
*
oF
= No Tone
Applies to Audiovox Family Radio and General Mobile Service Products.
AUDIOVOX CORPORATION (the Company) warrants to the original retail purchaser of this
product that should this product or any part thereof, under normal use and conditions, be proven
defective in material or workmanship within 90 days from the date of original purchase, such
defect(s) will be repaired or replaced with new or reconditioned product (at the Company's option)
without charge for parts and repair labor.
To obtain repair or replacement within the terms of this Warranty, the product is to be delivered
with proof of warranty coverage (e.g. dated bill of sale), specification of defect(s),
transportation prepaid, to the warranty center at the address shown below.
The Company disclaims liability for communications range of this product.
This Warranty does not apply to any product or part thereof which, in the opinion of the
Company, has suffered or been damaged through alteration, improper installation, mishan-
dling, misuse, neglect, accident, or by removal or defacement of the factory serial number/
bar code label(s). THE EXTENT OF THE COMPANY'S LIABILITY UNDER THIS WARRANTY
IS LIMITED TO THE REPAIR OR REPLACEMENT PROVIDED ABOVE AND, IN NO EVENT,
SHALL THE COMPANY'S LIABILITY EXCEED THE PURCHASE PRICE PAID BY
PURCHASER FOR THE PRODUCT.
This Warranty is in lieu of all other express warranties or liabilities. ANY IMPLIED
WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, SHALL BE
LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY. ANY ACTION FOR BREACH
OF ANY WARRANTY HEREUNDER INCLUDING ANY IMPLIED WARRANTY OF MER-
CHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 12 MONTHS FROM DATE OF
ORIGINAL PURCHASE. IN NO CASE SHALL THE COMPANY BE LIABLE FOR ANY
CONSEQUENTIAL OR INCIDENTAL DAMAGES FOR BREACH OF THIS OR ANY OTHER
WARRANTY, EXPRESS OR IMPLIED, WHATSOEVER. No person or representative is
authorized to assume for the Company any liability other than expressed herein in connection
with the sale of this product.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion
or limitation of incidental or consequential damage so the above limitations or exclusions may
not apply to you. This Warranty gives you specific legal rights and you may also have other
rights which vary from state to state.
90 DAY LIMITED WARRANTY
AUDIOVOX ELECTRONICS CORPORATION, 150 MARCUS BLVD., HAUPPAUGE, NEW YORK 11788
1-800-290-6650
128-5385C
For Customer Service
Visit Our Website At
www.audiovox.com
Product Information, Photos,
FAQ's Owner's Manuals
©
2007 Audiovox Electronics Corp., Hauppauge, NY 11788
128-xxxx
Printed in China
- Press the PTT button to confirm selection.
The display will indicate the current setting in standby 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 4 times (3
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
.
- 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 tone sounds in response to button activation.
Auto Key Lock Selection Mode
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:
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 the Monitor Button momentarily
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 the Monitor Button momentarily;
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.
Display Backlight Enable Operation
By pressing the MODE or Up/Down button momentarily, the LCD back-
light is turned on; the LCD backlight will turn off automatically in about
5 seconds.
This transceiver complies with FCC regulations for use in the United
States of America. Use in other countries may be prohibited or restricted
by local regulation. Please check with the local regulating agency be-
fore using this device outside the United States of America.
Main Channel Frequencies:
NOTE:
Channels 1 through 7 are shared with FRS radios.
Channels 8 through 14 are FRS only.
Channels 15 through 22 are GMRS only.
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 INTERFE-
RENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE
RECEIVED,INCLUDING INTERFERENCE THAT MAY
CAUSE UNDESIRED OPERATION.
CHANNEL/TYPE
1
2
3
4
5
6
7
8
9
10
11
FREQ (MHz)
462.5625
462.5875
462.6125
462.6375
462.6625
462.6875
462.7125
467.5625
467.5875
467.6125
GMRS/FRS
GMRS/FRS
GMRS/FRS
GMRS/FRS
GMRS/FRS
GMRS/FRS
GMRS/FRS
FRS
FRS
FRS
FRS
CHANNEL/TYPE
FREQ (MHz)
467.6625
467.6875
467.7125
462.5500
462.5750
462.6000
462.6250
462.6500
462.6750
462.7000
FRS
FRS
FRS
GMRS
GMRS
GMRS
GMRS
GMRS
GMRS
GMRS
GMRS
12
13
14
22
21
20
19
18
17
16
15
467.6375
462.7250
131.8
136.5
141.3
146.2
151.4
156.7
162.2
167.9
173.8
179.9
186.2
192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
