Audiovox GMRS1600-2PK User Manual

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ModelModel

Model

ModelModel

© 2002 Audiovox Electronics Corp., Hauppauge, NY 11788 Customer Service

::

GMRS1600-2PK GMRS1600-2PK

:

GMRS1600-2PK

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GMRS1600-2PK GMRS1600-2PK

OwnerOwner

Owner

OwnerOwner

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1-800-290-6650

Released: 9-24-02.

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CAUTION

NEVER ATTEMPT TO CHARGE ALKALINE OR DRY CELL BATTERIES, AS
BATTERIES MAY BURST CAUSING PERSONAL INJURY AND DAMAGE
TO THE PRODUCT. WHEN RECHARGING NICKEL METAL HYDRIDE
(NiMH) BATTERIES WITH THE SUPPLIED AUDIOVOX CHARGER AND
WALL ADAPTER, USE ONLY AUDIOVOX-APPROVED RECHARGEABLE
BATTERIES. USE OF THE 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.

AVOID PLACING THE GMRS1600-2PK RADIO TRANSCEIVER FOR PRO­LONGED PERIODS OF TIME IN DIRECT SUNLIGHT OR TEMPERATURES
BELOW -4° F (-20° C) OR ABOVE 140 ° F (60° C).

KEEP THE ANTENNA AT 1 INCH (2.5 cm) AWAY FROM YOUR HEAD AND
BODY. DO NOT USE YOUR GMRS1600-2PK RADIO TRANSCEIVER WITH
A DAMAGED ANTENNA.

PLACE THE RUBBER COVERS ON JACKS WHEN NOT IN USE.

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
NOT A REPRESENTATAIVE OF A FOREIGN GOVERNMENT, IS ELIGIBLE
TO APPLY FOR A GMRS SYSTEM LICENSE. YOU WILL NEED 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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FEATURES

Your GMRS1600-2PK Family Radio is a portable, easy to use, two-way
radio that you can carry almost anywhere. It is skillfully constructed to give
you reliable communications for many different applications.

PERFORMANCE

Your transceiver will achieve its maximum operating range when commu­nicating with other transceivers in a flat open area with no trees or build­ings obstructing its signal. Range may be up to 7 miles under such condi­tions. Obstacles such as buildings, trees or mountains will tend to reduce
the transceiver’s effective range.

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.

SAFETY INFORMATION

Your wireless hand-held portable transceiver contains a low power
transmitter. When the PTT button is pushed 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. Unauthorized antennas, modifications, or
attachments could damage the transmitter and may violate FCC
regulations.

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Model GMRS1600-2PK (FCC License Required)

7

5

6

4

8

9

3

15

2

1

1. Battery Cover

2. Monitor Button

3. Detachable Carry Clip

4. Push-To-Talk (PTT) and Func-

tion Confirmation Button

5. Antenna

6. External Ear (EAR) /Microphone

(MIC) Jack

7. Power On/Off Button

8. Liquid Crystal Display (LCD)

14

13

9. Up Channel/Volume Button

10. Function (FUNC) Select But-

ton

11. Down Channel/Volume But­ton

12. Built-in Speaker

13. Built-In Microphone

14. Emergency (EMG/LOCK)

Button

15. Battery Charging Contacts

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10

11

12

Model GMRS1600-2PK DISPLAY

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7

9

10

11

6

5

4

3
2

1

1.Battery Save Indicator: Automatically appears 5 seconds after

idle button or receive activity, thereby entering the “Sleep” mode.

2. Transmit Call Indicator: Icon appears when the PTT button is pressed
twice to alert the receiving party that a transmission is about to occur.

3. Small Segment Display: Indicates the Continuous Tone Coded
Squelch System (CTCSS) tone code (1-38) function is active for the
main channel in use.

4 Large Segment Display: Indicates the channel number in use between

1 and 22.

5. Voice Activated Transmission (VOX) Indicator: This function allows
hands free conversation. The icon appears when the VOX mode is
active.

6. Dual Watch Mode Indicator: Icon appears when dual watch mode is
active.

12

13

14

15

16

17

18

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7. Scan Indicator: This function allows the user to scan a channel and/

or a tone code every .5 second to search for a valid signal.

8. Beep Tone Indicator: Icon appears when beep button confirmation
tone is selected; icon disappears when tone is off.

9. Lock Indicator: Icon appears when the keypad is locked. This
function disables keys such as channel up/down and MODE.

10. Battery Level Indicator: Icon indicates the battery charge level.

11. CTC Indicator: This icon appears when the Continuous Tone
Coded Squelch System is active or a CTC channel is being selected.

12. Roger Beep (RGB) Indicator: This icon appears when the Roger
Beep tone is enabled; the tone sounds at the receiving unit to indicate
voluntary “End of Transmission”.

13.User Identification (ID) Indicator: When enabled, this icon appears
on the display, and one of 10 user selectable ID codes accompanies
each transmission, letting the receiving unit (if so equipped) know
who the sender is.

14.EMG Indicator: This icon appears when the unit is placed in the
emergency transmit mode.

15. HI/LO Indicators: The HI or LO indicator appears depending on the
selected transmitter power output level.

16. Transmit Indicators: These icons appear when the PTT button is
pressed to initiate a transmission. Transmission power is depicted
by the transmit icon; in low power mode, two bars appear and in high
power mode, five bars appear

17. Receive/Monitor (BUSY) Indicators: These icons appear whenever
an incomming signal is being received, and whenever the monitor (M)
button is pressed to receive incoming transmissions.

18. Out-of-Range Indicator: Icon will be on steady when received signal
strength is normal; icon flashes when signal strength becomes weak
and intermittant.

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Equipment and Accessories Supplied

1. Radio (2) Model: GMRS1600-2PK

2. Carry Case (2) P/N: ACC-403T

3. Owner’s Manual (1) 128-6400

4. Batteries (8), Rechargeable P/N: ASB-404T

5. Dual Desk-Top Charger (1) P/N: ADT-467T

6. AC Wall Adapter (1) P/N: AAA-401T

7. Boom Microphone (2) P/N: ABM-402T

8. Car Cigarette Lighter Adapter (1) P/N: ACL-466T

Powering the Transceiver:

Your GMRS1600-2PK radio transceiver operates on four AAA batteries.
Alkaline batteries will provide slightly better performance than rechargeable
batteries. Only the supplied Audiovox-approved rechargeable batteries can
be recharged in the radio transceiver using the suppiled desk-top charger
and associated wall adapter. In addition, the unit can be operated directly
from a 12 Vdc source (such as available from a car cigarette lighter
receptacle) by connecting the vehicle cigarette lighter battery charger adapter
to the dual desk-top charger supplied with the units. When connected for
operation in this manner, the batteries are bypassed and are no longer
used to power the unit. The battery charge indicator icon displays the bat­tery charge level. This will ensure optimum performance for the GMRS1600­2PK. Battery charging time is typically 10-12 hours. Use of the Audiovox
charger with other brands of 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 GMRS1600-2PK:

1. Alkaline Batteries.

WARNING: Do not attempt to recharge Alkaline batteries.

2.Audiovox Rechargeable NiMH Batteries - (Rechargeable NiMH

batteries, Wall Adapter, Car Cigarette Lighter Adapter and Charging

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Stand included). Use only Audiovox-approved rechargeable
batteries and charger 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

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 instructions 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 clip securing the belt clip to radio and slide
the belt clip upward and away from the radio body. Next, press down with
the thumbs at the embossed diamonds, slide the battery cover down and
lift off the battery cover. Insert four AAA batteries (alternate positive ends (+)
toward the bottom of the transceiver, starting left-to-right.

SPRING
CLIP

CARRY
CLIP

+ +

EMBOSSED
DIAMONDS

POSITIVE
TERMINALS

BATTERY
COVER

1. Using thumbs,
press down on
battery cover at
diamonds and
slide cover down
to open.

+ +

2. Slide the cover
down and then lift
cover at bottom to
open.Remove
cover.

8

3. Insert four AAA batteries
(positive (+) end toward
the bottom,begining at
left side, and alternating
positive terminals as
shown).

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The following guidelines will improve performance and provide longer
operating times for the GMRS1600-2PK:

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.

○○

○○○○○○○○

DESKTOP CHARGING STAND
PART NUMBER ADT-467T

CHARGING STAND
PWR JACK
(12VDC)

ADAPTER POWER
PLUG

GMRS RADIO
CHARGING
COMPARTMENTS (2)

CHARGING
COMPARTMENT
LEDs:
RED---CHARGING

9

AC WALL
ADAPTER/
CHARGING
TRANSFORMER
MODEL: AAA-401T

INPUT: 120VAC
OUTPUT: 12VDC

NOTE: Only Audiovox
approved rechargeable
batteries (P/N ASB-404T)
can be recharged in the radio
transceiver.

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GMRS1600-2PK OPERATIONAL MODES

GMRS/FRS
FUNCTION
SELECT

CHANNEL
SELECT

CTCSS
SELECT

POWER
SELECT

CHAN
SCAN

CTCSS
SCAN

DUAL
WATCH

VOX
SELECT

BUTTON
BEEP

ROGER
BEEP

USER
IDENT.

ID CODE
SELECT

CALL TONE
SELECT

Controls:

Power (P) On/Off (7) Button

Press and hold the Power on/off ( P) 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.

Adjusting the Volume (9, 11)

With the unit powered on, press the Up Channel/Volume button (
increase volume and the Down Channel/Volume button (

10

) to decrease

) to

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volume. The display will indicate the current volume level (UL) followed by
the number (1-8). As volume is increased upward, the beep sound (if
enabled) also increases, and vice-versa. When the minimum and
maximum volume settings are reached, a unique tone will sound.

Monitor (M) Button (2)

This button is used to to check activity on the current frequency before
transmitting. Check activity by pressing the Monitor (M) Button longer

than 2 seconds; the monitor icon ( ) will apppear on the display, together
with the

transmit if you hear conversation. Hold down the Monitor Button again
longer than 2 seconds; the monitor (
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; the LCD backlight will turn off automatically in about 5 seconds, unless
the monitor button is pressed once again.

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 (13). 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. While the PTT Button is pressed,

the transmit icon (
appear. Releasing the button allows the unit to revert to standby mode.

When receiving an incoming signal, the monitor (
appear.

icon, and you will hear static if the frequency is clear. Do not

)and icons will disappear

) in the lower right quadrant of the display will

) and icons will

Up Channel/Volume Button (9)

In the standby mode, pressing this button will increment the listening
volume. When in function edit mode, this button will be used to adjust the
unit’s settings.

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Down Channel/Volume Button (11)

In the standby mode, pressing this button will decrease the volume. When
in function edit mode this button will be used to adjust the unit’s settings.

FUNCtion Button (10)

This button is used to select various feature settings in the GMRS and FRS
modes.

External Speaker (EAR)/Microphone (MIC) Jack (6)

This jack accepts the Audiovox Earset/Microphone assembly. Refer to Earset/
Microphone operation later in this manual.

Emergency (EMG)/LOCK Button (14)

This radio has a quick access button (EMG) to the Emergency and
Assistance Channel. This channel is NOT monitored by local authorities.
When using this channel, EMG appears on the display. Pressing this
button will set the transceiver to channel 20, operating on 462.6750 MHz. In
addition, when the EMG button is pressed and held, the auto keylock feature
is enabled; the keylock icon (
the EMG button again, and the keylock icon will disappear.

) appears on the display. Press and hold

Operating Modes and Features

GRMS/FRS Operation:

- From GMRS/FRS standby mode, press and hold the Power (P) button

for 2 seconds to turn on power.

- Press the FUNC button so the Channel number flashes.

- Select the desired channel with the Up (9) and Down (11) Buttons;

then press the PTT button to confirm selection (automatic confirma­tion occurs 10 seconds later). When receiving a call, the Monitor icon

(

) and indication will appear on the display.

- Press and hold the PTT button (4) to transmit, then speak into the

microphone clearly and slowly. The Transmit icon (
on the display; the number of bars will reflect the selected power
level.

12

) will appear

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- 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 sub-channel number will be displayed on the LCD panel

if the tone frequency function is enabled.

Channel Selection

In order to communicate with other GMRS/FRS units, both transmitting
and receiving party must be on the same frequency.

The GMRS1600-2PK 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 assigned GMRS only channels. Communication with
Audiovox GMRS/FRS and compatible units is possible on these 22 chan­nels. 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 FUNC button (10) until

the channel number flashes.

- Press the Up Button (9) briefly to move to the next higher main chan-

nel 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 Continuous Tone Coded Squelch System (CTCSS) provides 38 Sub-Fre­quencies. This feature allows you to utilize the coded squelch tones (1-38)
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). Since
there are 38 CTCSS Sub-channels for each main channel, a different

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subcode may be selected for each of the 22 channels.
To change the CTCSS Sub-channel:

- From GMRS/FRS standby mode, press the FUNC 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 (1-38 ).

- Press the PTT button 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 commu­nicate with other GMRS/FRS 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.

Transmit Power Selection Mode

This feature permits selection of the transmitting power level to high
(1.8 watts, maximum) or low (0.5 watt maximum). (FRS channels 8-14
operate on low power only.) Using low power, the unit will have a
lower transmit range, but battery life will be increased.

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 experi­ment with switching between low and high power. However,
we do recommend that you not change this setting unless it
proves to be necessary in your particular situation.

To access the transmitter power selection function:

- From GMRS/FRS standby mode, press the FUNC Button three times

until the Po HI or Lo indication appears with a flashing HI or LO indica-
tion on the display.

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- Press the Up or Down button to toggle between the High and Low se-

lections.

- Press the PTT or Monitor button 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 approxi­mately 4 seconds after reception is terminated.

NOTE: The scan mode will reduce the overall battery life since the bat-

tery save function is overridden.

To enable the channel scan mode:

- From GMRS/FRS standby mode, press the FUNC Button four times;

SC and the channel number will appear flashing on the LCD display.

- Press the Up button to scan each channel (1-22) in ascending order,

or press the Down button to scan each channel in descending order.
The scan mode thus operates to find an active main channel.

- When the unit doesn’t find any signals and you want to transmit, press

the PTT Button to transmit on the primary selected channel.

The transceiver will automatically resume scanning approximately 20

seconds after the communication is completed.

- If there is no activity and you want to leave the scan mode, press the

FUNC button momentarily and the unit will return to normal operation;
the SC icon will disappear from the LCD display.

CTCSS Code Channel Scan Operation

This feature allows you to monitor all CTCSS 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
approximately 4 seconds after reception is terminated.

NOTE: The scan mode will reduce the overall battery life since the bat-

tery save function is overridden.

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To enable the CTCSS channel scan mode:

- From GMRS/FRS standby mode, press the FUNC Button five times;

SC, CTC and CTCSS channel number 1 will appear flashing on the
LCD display.

- Press the Up button to scan each CTCSS channel (1-38) in ascending

order, or press the Down button to scan each channel in descending
order. The scan mode thus operates to find an active CTCSS channel.

- When the unit doesn’t find any signals and you want to transmit, press

the PTT Button to transmit on the primary channel with the CTCSS
code currently being scanned. The transceiver will automatically
resume scanning approximately 20 seconds after the communication
is completed.

- If there is no activity and you want to leave the CTCSS scan mode,

press the FUNC button momentarily and the unit will return to normal
operation; the SC icon will disappear from the LCD display and the
currently displayed CTCSS code will remain along with the CTC indi­cation.

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
dual watch channel. Received signals will be heard 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 FUNC button six times;

the DW appears flashing on the display with channel number 1.

- To enable the dual watch mode, press the Up or Down button; the dual

watch channel number starts to increment up or down as the Up or
Down button is pressed.

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- The display will immediately alternate between the primary channel

and the dual watch channel just selected.

- To cancel the dual watch mode, press the FUNC button six times; then

press the Up or Down buttons to set the dual watch mode to oF .

VOX Selection Mode

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 set radio for VOX operation:

- From GMRS/FRS standby mode, press the FUNC button seven times

until the VOX icon flashes on the display.

- Press the Up or Down button to select VOX On (if oF appears) and the

1-5 VOX sensitivity level .

- Momentarily press the PTT button to confirm the VOX selection; the VOX

icon will appear steady on the LCD display.

A VOX sensitivity of 1 is the most sensitive, and should be used in a rela­tively quiet surrounding. A VOX sensitivity of 5 is the least sensitive and
should be used in a noisy surrounding.

VOX can be turned off by selecting oF as the setting.

Key Beep Tone

The key tone feature allows the transceiver to sound a confirmation tone
whenever the following keys are pressed: Up/Down Buttons, FUNC But­ton, EMG Button or the Power (off) Button.

To turn the key tones on or off:

- From GMRS/FRS standby mode, press the FUNC Button eight times

until the tone (

- Press the Up or Down Button to toggle the key tone feature On or Off.

- Press the PTT button to confirm selection.

) icon, and On or oF flash on the LCD display.

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When the key tone features is on, the tone 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 trans­mission has been terminated intentionally.

To turn the Roger Beep tone on or off:

- From GMRS/FRS standby mode, press the FUNC Button nine times

until the rb and On or oF indications appear on the display, together
with a flashing RGB.

- Press the Up or Down Button to toggle the Roger Beep tone feature On

or oF.

- Press the PTT button to confirm selection.

When the Roger Beep tone features is on, the RGB indication appears
steady on the display.

Caller Identification (ID) Select

The caller ID function allows you to assign an ID code between 1 and 10,
accompanied by a unique call tone; this code and tone accompanies your
transmission whenever you call another party, and will appear at the
receiving unit, provided it has caller ID capability.

To select a caller ID code for your unit:

- From GMRS/FRS standby mode, press the FUNC button 10 times;

Id appears, together with oF or 1-10 and a flashing ID indication.

- Use the Up or Down button to select the desired call identification

number.

- As you step through the ID codes between 1 and 10, stop at the de-

sired code number.

- Press the PTT or Monitor button to confirm selection.

Now, your caller ID number will accompany each transmission, and will
appear on the receiving unit, if so equipped, and vice-versa.

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Call Ring

The transceiver provides 3 user-selectable call ringer melodies to alert
the remote receiver to an incoming call. Any one of these melodies can be
selected whenever you select your personal call ring melody.

To select your favorite call ringer melody:

- From the GMRS/FRS standby mode, press the FUNC button 11 times
until CA appears with a flashing call melody number (1-3). Then use
the Up or Down Button to select the desired call melody between 1
and 3. As each code selection appears, it causes a sample call tone
to play. Stop at the desired call tone.

- Press the PTT button to confirm selection.

Now, your call ring melody will sound whenever you press the PTT button
twice to initiate a transmission. It will be heard at the receiving unit, pro­vided it is the same type and has the same capabilities.

Emergency and Assistance Channel Mode

This radio has a quick access button (EMG) to the Emergency and
Assistance Channel. This channel is NOT monitored by local
authorities.The Emergency Channel can be selected quickly from any user
mode.

To turn the Emergency Channel feature on or off:

- Press and release the EMG Button; EMG appears on the display
together with a Channel 20 indication.

- When the transceiver is set to Emergency Channel 20, the trans­ceiver transmits and receives on a special frequency (CH20:

462.6750 MHz).

- To exit the Emergency Channel mode, press the Emergency (EMG)
Button; EMG and Channel 20 disappear from the display, and the
radio reverts to the current user selected channel.

Out of Range Indication

The GMRS1600-2PK provides an Out-of-Range indication when reception
is no longer intelligible or too weak to be discernible. When this condition

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occurs, the icon appears on the display, reminding you that you are
outside the range of the unit, or that signal reception is being obstructed by

natural or man-made objects.

VOX Operation

When in the VOX mode, hands-free conversation is possible when using
the internal microphone/speaker or external microphone/earset
(Supplied). Your voice or the signal is detected and the radio transmits and
receives automatically.

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 Up, Down
and FUNC Buttons. Press and hold the EMG Button for more than 1 sec­ond to lock or unlock the key pad, except PTT and Monitor (M). When the

keypad is locked, the (
To access the Auto Key Lock feature:

- From GMRS/FRS standby mode, press and hold the EMG Button
for over 2 seconds to Lock the Auto Key function; the (

appears on the display.

- The PTT and Monitor Buttons are not effected.

- To unlock the Auto Key function, press and hold the EMG button for
at least 2 seconds; the icon (

) icon will display in the upper left corner.

) icon

) disappears from the display.

Battery Alert

When the battery icon ( ) blinks on the LCD panel, recharge or install
fresh batteries. If the batteries are not replaced, the ( ) icon will appear
and an audio tone will sound intermittently to warn the user that the batter­ies must be recharged/replaced.

Battery Saver Mode

Your GRMS1600-2PK has a unique circuit designed to dramatically
extend the life of its batteries. After 8-10 seconds of inactivity, the unit will
switch to battery saver mode. While in battery saver mode, the battery saver

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mode indicator ( ) is present on the display; however, the transceiver
will still remain ready to receive any incoming transmissions in this idle
(sleep) mode. Pressing any button will exit the battery saver mode.

Earset/Microphone Assembly

The supplied Microphone/Earset assembly contains a convenient
integral PTT switch, and eliminates the need of using the PTT switch
on the unit to transmit voice communications. In the VOX mode, press­ing this switch to transmit is not required, since this mode enables
hands-free communication simply by speaking into the microphone.

To transmit using the earset/microphone:

1. Set the desired primary channel; then press and hold the Earset/Micro
phone assembly Push-to-Talk (PTT) button while speaking slowly and
clearly in a normal voice into the boom microphone.

2. Release the PTT button when you finish speaking to receive incoming
signals.

To receive using the earset/microphone:

1. Set the desired channel, and adjust the volume control to the desired
listening volume by using the up and down buttons.

2. The transceiver will play received signals through through the
earset/microphone assembly.

NOTES FOR GOOD COMMUNICATION

1 . The 22 channels of the GMRS1600-2PK 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.

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2. The GMRS1600-2PK 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 (13) and speak slowly in a normal voice.

4. To increase battery life, avoid features such as Scan and Dual Watch .
These features will reduce battery operating life considerably.

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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Troubleshooting

Problem Possible cause Correction

No transmission Weak batteries Charge or replace batteries
while pressing Incorrect battery polarity Install the batteries
the PTT Button following the directions in

Weak or no Weak batteries Charge or replace batteries
signal received Channel and privacy Adjust the transceiver’s

code not set the same settings to match those
as target transceiver settings of the target

Volume level too low Increase volume level
PTT Button inadvertently Release PTT Button
depressed
Excessive radio interference Change to a different
on a particular channel channel
Obstruction of radio signal Avoid operating in or near

Unit beeps, but Batteries extremely Charge or replace batteries
will not function discharged
when turned on

Reception of CTCSS privacy mode Turn on the CTCSS privacy
unwanted signals not on mode and set code number to

Interference from Turn the devices off or move
electronic devices such farther away from them.
as computers or TVs

paragraph Installing the
Batteries.

transceiver

large buildings or vehicles

match the setting of the
target transceiver.

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TT

ecec

hnical Specifhnical Specif

T

ec

hnical Specif

TT

ecec

hnical Specifhnical Specif

GeneralGeneral

General

GeneralGeneral

Frequency Range:

Channels 1 through 7 are
GMRS/FRS Frequencies. Refer to frequency chart on next page.
Channels 8 through 14 are
FRS only. Refer to frequency chart on next page.
Channels 15 through 22 are

GMRS only. Refer to frequency chart on next page.
Channel Spacing 12.5kHz
Privacy Codes 38 for each main channel

Dimensions (W x H x D) 2.125 W x 4.0 H x 1.325 D
(Without Antenna) (54.0 mm x 101.6 mm x 33.6 mm)

Power SupplyPower Supply

Power Supply

Power SupplyPower Supply

Power Source Alkaline Batteries, AAA (4), 6 VDC

Operating Time 30 hours Low Power
(Transmit: Receive: Standby) 14 hours High Power
(5: 5: 90 ratio)
(Based on alkaline batteries)

ReceiverReceiver

Receiver

ReceiverReceiver

Useable Sensitivity >-119 dBm
Maximum Audio Output Power > 0.3 Watt maximum (8 Ohm )
Modulation Distortion < 5% (1 kHz 70%)

TT

rr

ansmitteransmitter

T

r

ansmitter

TT

rr

ansmitteransmitter

RF Output Power 1.8 Watts maximum (high power)

Maximum Deviation +/- 2.5 kHz
Modulation Distortion < 5% (1 kHz 70%)

icaica

tions:tions:

ica

tions:

icaica

tions:tions:

Ni-MH rechargeable, AAA (4),

4.8 VDC, 650 mAh

0.5 Watt maximum (low power)

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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 before using
this device outside the United States of America.

Main Channel Frequencies:

EPYT/LENNAHC)zHM(QERFEPYT/LENNAHC)zHM(QERF

SRF/SRMG15265.264SRF215266.764

SRF/SRMG25785.264SRF315786.764

SRF/SRMG35216.264SRF415217.764

SRF/SRMG45736.264SRMG510055.264

SRF/SRMG55266.264SRMG610575.264

SRF/SRMG65786.264SRMG710006.264

SRF/SRMG75217.264SRMG810526.264

SRF85265.764SRMG910056.264

SRF95785.764SRMG020576.264

SRF015216.764SRMG120007.264

SRF115736.764SRMG220527.264

NOTE: Channels 1 through 7 are GMRS/FRS Frequencies.

Channels 8 through 14 are FRS only.
Channels 15 through 22 are GMRS only.

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Continuous Tone Coded Squelch System Tone

Frequencies (in Hz)

CTCSS Freq. Hz CTCSS Freq. Hz

1 67.0 20 131.8
2 71.9 21 136.5
3 74.4 22 141.3
4 77.0 23 146.2
5 79.7 24 151.4
6 82.5 25 156.7
7 85.4 26 162.2
8 88.5 27 167.9

9 91.5 28 173.8
10 94.8 29 179.9
11 97.4 30 186.2
12 100.0 31 192.8
13 103.5 32 203.5
14 107.2 33 210.7
15 110.9 34 218.1
16 114.8 35 225.7
17 118.8 36 233.6
18 123.0 37 241.8
19 127.3 38 250.3

* oF = No Tone

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90 DAY LIMITED WARRANTY

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, mishan­dling, 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 MER­CHANTABILITY MUST BE BROUGHT WITHIN A PERIOD OF 30 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.

AUDIOVOX CORPORATION, 150 MARCUS BLVD., HAUPPAUGE, NEW YORK 11788

1-800-290-6650

128-5385A

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© 2002 AUDIOVOX ELECTRONICS CORP., HAUPPAUGE, NY

Printed in China

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