RadioShack 21-1935 - Manual

Thank you for purchasing your 2-way radio

from

RadioShack. You can talk to others in

the next room, next door, and around the

neighborhood. Your radios transmit and receive

General Mobile Radio Service (GMRS) and

Family Radio Service (FRS) frequencies.

21-1935

18-mile GMRS/FRS

2-way radio with charger

Your radio has 22 channels and 142 quiet

codes. To talk to others, you must be on the

same channel and quiet code if it is activated.
To select a channel and quiet code:

1. Repeatedly press

U

or

V

to select a channel (1-

22).

2. Press TONE/SCN. The quiet code number

fl ashes.

3. Repeatedly press

U

or

V

to select a quiet code

(oFF or 1 - 142).

4. Press TONE/SCN again.

• Quiet codes limit authorized users and

reduce interference.

• Code oFF indicates that you have no quiet

code selected. Your radio can receive a

signal regardless of other radio settings.

channel frequency chart

Ch.

Cross Ref.

Ch.

Cross Ref.

1

462.5625 FRS & GMRS

12

467.6625 FRS

2

462.5875 FRS & GMRS

13

467.6875 FRS

3

462.6125 FRS & GMRS

14

467.7125 FRS

4

462.6375 FRS & GMRS

15

462.5500 GMRS

5

462.6625 FRS & GMRS

16

462.5750 GMRS

6

462.6875 FRS & GMRS

17

462.6000 GMRS

7

462.7125 FRS & GMRS

18

462.6250 GMRS

8

467.5625 FRS

19

462.6500 GMRS

9

467.5875 FRS

20

462.6750 GMRS

10

467.6125 FRS

21

462.7000 GMRS

11

467.6375 FRS

22

462.7250 GMRS

• Use FRS (LO) channels 8 - 14, with a range

of up to 5 miles, for longer battery life. Use

GMRS (HI) channels 1 - 7 and 15 - 22, with

a range of up to 18 miles, for more power.

• You can boost the typical range of GMRS

channels only when operating on a Ni-MH

battery pack. When you press BOOST

while using alkaline batteries, TXHI

appears instead of BOOS and the range is

not boosted.

This product is warranted by

RadioShack

against manufacturing defects

in material and workmanship under normal use for one (1) year from

the date of purchase from

RadioShack

company-owned stores and

authorized

RadioShack

franchisees and dealers. For complete warranty

details and exclusions, check with your local

RadioShack

store.

RadioShack

Customer Relations

300 RadioShack Circle

Fort Worth, TX 76102

04/04

• Keep your radios dry; if they get wet, wipe them dry immediately.
• Handle your radios carefully; do not drop them.

• Wipe your radios with a damp cloth occasionally to keep them looking new.

installing batteries

To install the battery pack

or AAA batteries (not

included), release the

latch, remove the battery

compartment cover, install

the battery pack according

to the label and replace the

cover.

• Dispose of old

batteries promptly and properly. Do not burn or

bury them.

• Use only fresh batteries of the required size and

recommended type. Do not mix batteries of

different sizes or chemistries.

• If you do not plan to use your radio for a month

or more, remove the batteries. Batteries can leak

chemicals that can damage electronic parts.

charging your radios

Battery packs take about 16 hours to fully charge.

When the battery is low, BATT appears and

fl ashes. Recharge the battery pack. You can charge

in one of three ways: using AC adapters, cradles or

your car adapter (not included).

• Do not recharge alkaline batteries.

• To prolong the life of your rechargeable batteries,

always fully discharge your battery pack before

recharging.

• You cannot recharge AAA type rechargeable

batteries.

charging with AC adapters

1. Turn off the radio.
2. Connect the supplied AC adapter to the DC 9V jack of

the radio and to a standard wall outlet.

3. Charge the battery pack for 16 hours

until

stops fl ashing.

charging using the cradles

1. Plug the supplied AC adapter into the

cradle and a standard wall outlet.

2. Turn off the radio and place in the

charger.

3. Charge the battery pack for 16 hours

until

stops fl ashing. Then remove

the radio from the cradle after charging.

using vehicle battery power
You can charge the radio using a 9V, 210 mA DC

adapter and a size H Adaptaplug

TM

TM

adapter (neither

supplied). Both are available at

RadioShack.

You must use a power adapter that supplies 9V

DC and delivers at least 210 mA. Its center tip

must be set to positive and its plug must fi t the

radio’s DC 9V jack. Using an adapter that does

not meet these specifi cations could damage the

radio or the adapter.

1. Turn off the radio.
2. Insert the Adaptaplug into the adapter’s cord

with center tips set to positive +

.

Then, insert the

Adaptaplug into the radio’s 9V jack and plug the other

end of the adapter into your vehicle’s power adapter

socket.

3. Charge the battery pack for 16 hours until

stops

fl ashing.

automatic power save feature
After three seconds of inactivity, your radio switches

to Power Save mode. The radio can still receive

transmissions in this mode.

attaching belt clips

Attach each belt clip by sliding the

belt clip down. To remove, lift the

tab and slide the belt clip upward.

making a call

1. Turn on the radio.
2. Verify the person you wish to talk to is on the same

channel.

3. Press PTT (push to talk) to talk, then release to listen.

muting keystroke tones

To mute the keystroke tones, press and hold

D-CALL while turning on the radio. To reactivate the

keystroke tones, turn the radio off. Then turn it back

on while holding down D-CALL.

activating roger beep

A roger beep is sent to notify the end of a

transmission. To activate the roger beep, press and

hold

U

while turning on the radio. To deactivate the

roger beep, turn the radio off. Then turn it back on

while holding

U

. You can hear a sent roger beep

when the keystroke tone feature is on.

This radio operates on the General Mobile Radio Service (GMRS)
frequencies when using Channels 1—7 and channels 15—22. You
must have a GMRS license issued by the Federal Communications
Commission to legally use these channels. For licensing information and
application forms, visit the FCC online at: www.fcc.gov/wtb/uls or call
the FCC hotline at 1-800-418-3676. If you have any questions, you can
contact the FCC direct at 1-888-225-5322.
No license is required for operation on channels 8-14 or operation on
any channel in Canada.

Channels ................................................................................................................................. 15 GMRS / 7 FRS / 7 Weather
Quiet Codes ............................................................................................................ 38 Sub-Audible Tones, 104 DCS Codes
Operating Frequency
GMRS/FRS .............................................................................................................................UHF 462.5500 - 467.7125 MHz
WX ................................................................................................................................................. 162.4000 - 162.5500 MHz
Range
Channels 8 -14 ................................................................................................................................................. Up to 5 miles
Channels 1 - 7, 15 - 22 .............................................................................. Up to 10 miles (or up to 18 miles with BOOST)
Power Source ...................................Ni-MH battery pack (supplied) or 4 AAA Alkaline Batteries (optional, not supplied)
Battery Life (5/5/90 duty cycle) ......................................................................... About 12 hours (with Ni-MH Battery Pack)
Specifi cations are typical; individual units may vary. Specifi cations are subject to change and improvement without

notice. Actual product may vary from the images in this document.

WARNING! The Federal Communications Commission has adopted a safety standard for human exposure to radio frequency electromagnetic energy

emitted by FCC regulated transmitters. It is up to the user to properly operate this radio transmitter to insure safe operation. Please adhere to the

following: Never allow children to operate the radio without adult supervision and the knowledge of these guidelines. Avoid touching the antenna

when transmitting. Do not use the radio with a damaged antenna. Please contact your local

RadioShack

store for a suitable replacement. This

device was tested for typical body-worn operations. Use only the supplied belt-clip to maintain compliance with FCC RF exposure requirements.

For hand-held operation, the radio should be held 1 inch from the user’s face. Use only the supplied accessories to comply with FCC RF exposure

requirements. For more information about RF exposure, please visit the FCC web site at www.fcc.gov.
Changes or modifi cations not expressly approved by

RadioShack

may cause interference and void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: (1) This device may not cause harmful

interference, and (2) This device must accept any interference received, including interference that may cause undesired operation.

NOTES

Please read this user’s guide before

installing, setting up, and using your new product.

www.radioshack.com

GMRS/FRS Radios (2)

NOTES

UTZZ01018AZ(0)

21-1935

01A06

Printed in China

©2006

RadioShack Corporation.

All rights reserved.

RadioShack and RadioShack.com are trademarks used by

RadioShack Corporation.

Charging Cradles (2)

AC Adapters (2)

Battery Packs (2)

Belt Clips (2)

NOTES

NOTE

To access advanced features, repeatedly press MENU/GRP to scroll through the menu.

To exit, press PTT, BOOST, MON, D-CALL, WX/ALERT, or TONE/SCN or wait 10 seconds for the radio

to automatically exit. Or, press MENU/GRP at the key lock setting.

scramble

You can use scramble mode if you want to make a private conversation. This works by garbling your

transmission to unwanted listener. Be sure that your party also sets their radio to the scramble mode to

listen in. To scramble your conversation:

1. Repeatedly press MENU/GRP until SCRM appears.
2. Use

U

or

V

to select on or off.

voice operated transmission (VOX)

Voice Operated Transmission (VOX) mode enables handsfree operation. To use VOX mode:

1. Insert a headset microphone into the headset jack.
2. Repeatedly press MENU/GRP until VOX appears. Selecting oF (OFF) disables VOX.
3. Repeatedly press

U

or

V

to select a VOX sensitivity level (1 - most sensitive to 5 - least sensitive) to suppress

background noise. This helps prevent unintended transmission.

call tones

To change call tones:

1. Repeatedly press MENU/GRP until CALL appears.
2. Repeatedly press

U

or

V

to select a call tone (1 - 10).

3. To transmit the selected call tone, press D-CALL.
4. To cancel the tone, press PTT or BOOST.

silent mode

When silent mode is on, all incoming calls are muted, the backlight blinks, and “SLNT” and the call icon

display to alert you of an incoming call. If you do not respond to the call within 15 seconds, the backlight

turns off, and the miss call icon will continuously blink. Silent mode is disabled for 15 seconds when you

transmit or press any other key, or after you receive the last signal.
To enter silent mode:

1. Repeatedly press MENU/GRP until SLNT appears.
2. Repeatedly press

U

or

V

to select on or off.

3. To confi rm the setting and exit the menu mode, press MENU/GRP twice.

• To prevent unwanted silent alerts, be sure to use a quiet code whenever you use the silent mode feature.
• Even during silent mode, you can hear other users when you turn on the channel scan and an active

channel is detected.

key lock

To lock the radio keys:

1. Repeatedly press MENU until LOCK appears.
2. Press

U

or

V

to select oF (OFF) or on (ON).

3. To confi rm the setting, press MENU/GRP. If you do not confi rm your selection, the keys will not lock.

4. To unlock the keypad, turn the radio off and then back on.

In order to use group mode Direct Call and Auto Channel

Change, you need to initialize the following settings on your

radio:

• Set the radio to Group Mode
• Set a Group Number
• Set a Ring Tone
• Set a Unit Number
• Set a Nickname

setting the radio to group mode

To set the radio to group mode, press and hold MENU/GRP for 2

seconds. The radio displays oF GRUP.

Press

U

to display on GRUP, then press MENU/GRP to continue

to the next section.

In group mode, you cannot receive transmissions from other

radios unless they are also set to the same channel and group

number.

setting a group number

Set a group number from 0-142, so the group member can

select the same group number to communicate with each other.

1. Press and hold MENU/GRP for 2 seconds. The radio displays on

GRUP.

2. Press MENU/GRP. The radio displays Gnnn (where n is a number).

Press

U

or

V

to select a group number.

3. Press PTT or BOOST to exit, or continue to the next section.

setting a ring tone

You can select a tone for a direct call.

1. Press and hold MENU/GRP for 2 seconds. Then press MENU/GRP

two times until the radio displays n RING.

2. Press

U

or

V

to select the desired ring tones.

3. Press PTT or BOOST to exit, or continue to the next section.

setting a unit number

Each radio in your group needs to be set to a different number,

from 1-16.

1. Press and hold MENU/GRP for 2 seconds, then press MENU/

GRP three times until the radio displays n _ _ _ _ (or your current

nickname).

2. Press

U

or

V

repeatedly to select the desired unit number.

3. Press MENU/GRP to set the unit number and continue to the next

section.

setting your nickname

Your nickname appears on other group member’s displays when

you make a group call or direct call. When no nickname is set,

the unit number appears.

1. Press and hold MENU/GRP for 2 seconds. Then press MENU/

GRP four times until the radio displays n _ _ _ _ (or your current

nickname) with the fi rst place in the nickname fl ashing.

2. Repeatedly press

U

or

V

to select a letter. Then press TONE/SCN

to enter it and go to the next letter. Repeat step 2 until you have

entered your nickname.

3. Press MENU/GRP to confi rm the group settings menu.

using group mode

You can make direct calls to one of your group members

You can make direct calls to one of your group members

privately and quickly change everyone in your group to another

privately and quickly change everyone in your group to another

channel from a single radio.

channel from a single radio.

1. Set up the group mode instructions above on every radio in your

1. Set up the group mode instructions above on every radio in your

group.

group.

2. To record the unit number and nickname of each, send a call to

2. To record the unit number and nickname of each, send a call to

“ALL” from each radio one time (see “sending a direct call”).

“ALL” from each radio one time (see “sending a direct call”).

sending a direct call

You can call everyone in your group at once:

1. Press D-CALL in group mode. The radio fl ashes ALL.
2. Press D-CALL again. Everyone in your group receives a “chirp” for

about 3 seconds. When the chirp ends, begin your conversation.

If the unit number on your radio is the same as that of the

received signal, FAIL appears. In this case, change the unit

number on your radio.

Or,
Call one group member without the other members knowing:

1. To call a group member privately, press D-CALL in group mode.

Then, use

U

or

V

to select the person and press D-CALL again.

Your radio sounds a tone for 3 seconds and the selected person’s

radio sounds a tone for 10 seconds. If the person does not respond,

your radio returns to group mode after 15 seconds. You can start a

conversation by pressing PTT before the tone ends on your radio.

2. Your conversation will remain private until 15 seconds after your last

transmission. After that, your radio automatically returns to group

mode.

automatically changing channels

If the current group channel has RF interference, you can

coordinate a group channel change.

• Press TONE/SCN, the current channel and CHCX appears.

Use

U

or

V

to select your target channel. Check whether the

selected channel is vacant, then press D-CALL. Your radio chirps for

about 10 seconds while it sends out the channel change signal. As

each radio receives the channel change signal, it chirps once; then it

changes to the new channel.

To ensure all radios make it to the new channel, we recommend

you:

• Operate the radio in an open environment to allow the radio the best

range.

• Optimize range during the channel change signal by raising the

radio over your head for extra height.

• Do a “roll call” on the new channel to make sure no radio was left

behind. If you missed someone, return to the previous channel and

issue the signal again.

Your radio can receive weather broadcasts

from the NOAA National Weather Service.

There are 7 common NOAA channel

frequencies in the US and Canada:
NOAA weather radio frequency list
Channel 1

162.550 MHz

Channel 2

162.400 MHz

Channel 3

162.475 MHz

Channel 4

162.425 MHz

Channel 5

162.450 MHz

Channel 6

162.500 MHz

Channel 7

162.525 MHz

1. To listen to a weather channel, press

WX/ALERT. WX appears.

2. Repeatedly press

U

or

V

to select the desired

weather channel. To change the channel

continuously, press and hold

U

or

V

for more

than 1 second.

3. To exit the weather channel mode, press WX/

ALERT. WX disappears.

using the weather alert

In weather alert mode, the radio operates

normally but also monitors the selected

weather channel for alerts when it is not

transmitting or in the menu mode. Your radio

sounds an alert for serious weather conditions

when it receives a weather alert.

1. Select your local weather channel.
2. Press and hold WX/ALERT; alert appears and

the sound is muted.

3. Press WX/ALERT to change the mode from

weather to GMRS/FRS. You can use the radio as

usual.

4. When the radio receives a warning signal, an

alert tone sounds for 5 seconds. alert and the

channel indicator blink. Press any key to turn off

the alert tone before it automatically stops.

5. To exit the weather alert mode and listen to the

weather channel, press WX/ALERT.

To turn off the weather alert mode before

a warning signal is detected, press and

hold WX/ALERT. alert disappears.

Scramble

VOX Level

Call Tone

Silent Mode

Key Lock

NOTES

User’s Guide

Belt clip

Tab

NOTES

PTT (Push to Talk)
Hold down to talk. Release to receive.

display with backlight
Lights up for 10 seconds when you press

any key (except PTT and BOOST).

MENU/GRP
Accesses

advanced

features and

group mode.

D-CALL
Press to send a short call tone to a

person, a group, or all radios.

WX/ALERT
• Press to listen to a weather

channel.

• Press and hold to set the radio

to the weather alert mode.

BOOST
Press for maximum transmission

for one minute when you’re using

a GMRS channel. Requires Ni-MH

batteries.

on/off/volume
Rotate to turn on/off or to adjust volume.

U

/

V

Press to select a channel.

headset jack

Connect a headset (not supplied).

TONE/SCN
• Press before selecting a quiet code.
• Hold down to scan all channels. The

radio pauses on active channels until

activity clears. Press PTT to transmit on

a paused channel. Press D-CALL, PTT,

BOOST, WX/ALERT or MENU/GRP,

or hold TONE/SCN for two seconds to

cancel the scan.

MON
Press briefl y to monitor for weak signals on

the current channel or quiet code. Hold for

2 seconds to continuously monitor. Press

again to stop monitor.

MIC
To transmit, hold down the PTT button and

speak into the microphone.

CAUTION

NOTES

NOTES