Radio Shack 2101902 User Manual
21-1902
RadioShack Copyright
22 Ch GMRS/FRS Two-way Radio
Your RadioShack 22 Channel FRS/GMRS Two-way Radio provides short-range voice radio
communication that lets families and groups keep in touch with each other on specific reserved
channels.
Your RadioShack 22 Channel FRS/GMRS Two-Way Radio is a lightweight, palm-sized radio you
can use to talk with another person who has a FRS/GMRS radio set to the same frequency as
your radio.
Your radio has 22 channels and 38 different quiet codes, which you can use to talk with another
person who has a GMRS or FRS radio set to the same frequency as your radio. Your radio also
has auto-squelch, so you will not hear anything on a channel unless someone is transmitting
nearby on the same channel.
You can connect an optional speaker/microphone and earphone to the radio (neither supplied,
available at your local RadioShack store).
Your radio’s display has a backlight that turns on for about 5 seconds when you press any key
except PTT.
Your radio’s other features include:
Ø 22 Channels – provide clear communications for up to two miles in FRS channel and up to
three miles in GMRS channel.
Ø Channel Scan – use to find other FRS users.
Ø 38 Quiet Code – eliminates interference from other radios that are not tuned to the same
channel and quiet code as your radio.
Ø Key Beep – short beep generation for key pressed acknowledgement except PTT or
Function key.
Ø Voice Operated Transmission (VOX) – enables standalone usage and works with
handsfree accessory.
Ø Automatic Power Off – the radio auto power off when the radio is idle for 30, 60 or 90
minutes.
Ø Hi/Lo power selection – select the transmit power 0.5W or 1.0W in GMRS channel.
Ø Courtesy Tone – at the end of transmission, it generates for end of message
acknowledgement.
Ø
Caller ID
the radio will receive the Call that is address to this radio and display the transmitter ID
number on LCD.
Ø PLL (Phase –Lock Loop) Controlled Circuitry – provides accurate and stable channel
selection.
– In transmitter, user can select the receiver radio to receive the Call. In receiver,
Description of 21-1902 LCD diagram
Miss ID Indicator
Keypad Lock
Key Beep
500mW Low Power
Courtesy Tone
Battery Level Meter
Signal Strength Meter
Transmit
Scan
CTCSS code Indicator
Function
Automatic Power Off
Voice Operated Transmission
Channel Indicator
INSTALLING BATTERIES
Your radio requires four AAA alkaline batteries (not supplied) or rechargeable nickel-cadmium
(Ni-Cd) / nickel-metal hydride (Ni-MH) batteries (supplied) for power. For the best performance
and longest life, we recommend RadioShack batteries.
Cautions:
• Use only fresh batteries of the required size and recommended type.
• Do not mix old and new batteries, different types of batteries (alkaline or rechargeable), or
rechargeable batteries of different capacities.
1. Rotate VOL/OFF counterclockwise until it clicks to turn off the radio.
2.
3. Pull down the latch on the battery compartment cover, then remove the cover.
4.
5. Slide CHARGE ON/OFF inside the battery compartment to OFF (for alkaline batteries) or ON
(for Ni-Cd or Ni-MH rechargeable batteries) when charging the battery through the 6V DC
jack on the button of the radio.
Warning: Never install non-rechargeable batteries when CHARGE ON/OFF is set to ON.
Non-rechargeable batteries can get hot or explode if you try to recharge them.
6. Install four AAA batteries according to the polarity symbols (+ and -) marked inside.
5. Replace the cover and push the latch up until it clicks, then rotate VOL/OFF clockwise until it
clicks to turn on the radio.
The battery icon’s segments display to show how much power remains. When the Battery
bracket flashes, replace alkaline batteries or recharge Ni-Cd or Ni-MH batteries.
Warning:
• Dispose of old batteries promptly and properly. Do not burn or bury them.
Caution:
• If you do not plan to use the radio for a month or longer, remove the batteries.
Batteries can leak chemicals that can destroy electronic parts.
Recharging Ni-Cd or Ni-MH Batteries through 6V DC jack
Warning:
• Do not attempt to charge alkaline batteries. Non-rechargeable batteries can get hot or
explode if you try to recharge them.
The radio’s DC 6V jack is for charging Ni-Cd or Ni-MH batteries and powering the radio.
You can recharge Ni-Cd or Ni-MH batteries inside the radio at home or vehicle, using a 6V,
600mA AC or DC adapter and a size F Adaptaplug
TM
connector.
Cautions:
• You must use a Class 2 power source that supplies regulated 6V DC (Not more than 6V)
and delivers at least 600mA. Its center tip must be set to positive and its plug must fit
the radio’s DC 6V jack. Using an adapter that does not meet these specifications could
damage the radio or the adapter.
• Always connect the adapter to the radio before you connect it to an external power
source (such as an AC outlet or a vehicle cigarette-lighter socket). When you finish,
disconnect the adapter from the power source before you disconnect it from the radio.
1. Rotate VOL/OFF fully counterclockwise to turn off the radio.
2. Pull down the latch on the battery compartment cover and remove the cover.
3. Set CHARGE ON/OFF to ON.
4. Place four Ni-Cd or Ni-MH batteries in the compartment according to the polarity symbols (+
and -) marked inside. Then replace the cover and push the latch up until it clicks.
5. Attach the Adaptaplug to the adapter so TIP reads positive (+).
6. Connect the Adaptaplug’s other end to the radio’s DC 6V jack and plug the adapter into a
standard AC outlet or vehicle’s power source.
Note:
• Complete charging takes about 10 hours. When charging is complete, unplug the AC
or DC adapter from the power source, then disconnect it from the radio’s DC 6V jack.
Ni-MH batteries take longer to charge than Ni-Cd batteries.
•
Recharging Ni-CD or Ni-MH batteries through slow-charger
1. Power up the slow-charger.
2. Place four Ni-CD or Ni-MH batteries in the compartment according to the polarity symbols (+
and -) marked inside, then replace the cover and push the latch up until it clicks.
3. Place the radio into the slow-charger.
Note:
• Complete charging takes about 10 hours. When charging is complete, remove the
radio from the slow-charger.
Important: The EPA certified RBRC® Battery Recycling Seal on the nickel-cadmium (Ni-Cd)
battery indicates RadioShack is voluntarily participating in an industry program to collect and
recycle these batteries at the end of their useful life, when taken out of service in the United
States or Canada. The RBRC program provides a convenient alternative to placing used Ni-Cd
batteries into the trash or the municipal waste stream, which may be illegal in your area. Please
call 1-800-THE-SHACK (1-800-843-7422) for information on Ni-Cd battery recycling and disposal
bans/restrictions in your area. RadioShack’s involvement in this program is part of the company’s
commitment to preserving our environment and conserving our natural resources.
OPERATION
Power On/Off
Rotate VOLUME/ OFF to turn the radio on or off and adjust the volume.
Transmit
Hold down PTT to send a page to other FRS radios set to the same channel (and the same quiet
code, if you selected one). TX appears. Release PTT to stop transmission.
Note:
• If you hold down PTT for about 2 minutes, the radio automatically stops transmission
to save power.
Selecting Channel
Press UP or DOWN key manually to select the desired channel. The selected channel number
appears.
FRS Frequencies Table
Channel Frequency (MHz) Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
462.5625 FRS 1/GMRS Interstitial 1
462.5875 FRS 2/GMRS Interstitial 2
462.6125 FRS 3/GMRS Interstitial 3
462.6375 FRS 4/GMRS Interstitial 4
462.6625 FRS 5/GMRS Interstitial 5
462.6875 FRS 6/GMRS Interstitial 6
462.7125 FRS 7/GMRS Interstitial 7
467.5625 FRS 8
467.5875 FRS 9
467.6125 FRS 10
467.6375 FRS 11
467.6625 FRS 12
467.6875 FRS 13
467.7125 FRS 14
462.5500 GMRS Primary 1
462.5750 GMRS Primary 2
462.6000 GMRS Primary 3
462.6250 GMRS Primary 4
462.6500 GMRS Primary 5
462.6750 GMRS Primary 6
462.7000 GMRS Primary 7
462.7250 GMRS Primary 8
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