Realistic trc 500 voice activated fm transmitter

Page 1

W©D©E A©FQJJATE® FM TMN$©EHWEIR

THC-500
OWNER'S
MANUAL

PLEASE READ BEFORE
USING THIS EQUIPMENT

*TRADEMARKS 0F RADIO SHACK DIVISION, TANDY CORPORATION

RADIO SHACK LIMITED WARRANTY

This product is warranted against delecls for ninety (90) days from the date of purchase
from Radio Shack companyowned stores and authorized Radio Shack dealers. Wiihin
1his period Radio Shack will repair the product without charge for pans and Iabour.Simply
brlllg your Radio shack nhs sllp as proof-oI-purchase date i0 any Radio Shack store.
Warranry does not cover Iransporiaiion costs. Nor dues it cover a produci subjecied to

misuse or accidental damage.

EYIFDT AQ Dnnurncn MCDEIM Danln DUA/V nun-o a Mann/«Numb. EKFHE§§
OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.

This warranty gives you specific regal rights and you may have other rights which vary rrom province to

province.
WE SERVICE WHAT WE SELL

RADIO SHACK DIVISION, TANDY ELECTRONICS LIMITED

CANADA: BARRIE, ONTARIO LAM 4W5
U.S.A.: FORT WORTH, TEXAS 76102

TANDY CORPORATION

AUSTRALIA U.I(, BELGIUM
DE NANINNE
K RRAJONG AVENUE BILSTON ROAD, WEDNESEURV PARC INDUSTRIEL
MEIUNl'JI' DRUITT, N.S.W. 2770 WEST MIDLANDS WSIO UN 5100 NANINNE

Primed In Korea

Page 1

W©D©E A©FQJJATE® FM TMN$©EHWEIR

THC-500
OWNER'S
MANUAL

PLEASE READ BEFORE
USING THIS EQUIPMENT

*TRADEMARKS 0F RADIO SHACK DIVISION, TANDY CORPORATION

RADIO SHACK LIMITED WARRANTY

This product is warranted against delecls for ninety (90) days from the date of purchase
from Radio Shack companyowned stores and authorized Radio Shack dealers. Wiihin
1his period Radio Shack will repair the product without charge for pans and Iabour.Simply
brlllg your Radio shack nhs sllp as proof-oI-purchase date i0 any Radio Shack store.
Warranry does not cover Iransporiaiion costs. Nor dues it cover a produci subjecied to

misuse or accidental damage.

EYIFDT AQ Dnnurncn MCDEIM Danln DUA/V nun-o a Mann/«Numb. EKFHE§§
OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE.

This warranty gives you specific regal rights and you may have other rights which vary rrom province to

province.
WE SERVICE WHAT WE SELL

RADIO SHACK DIVISION, TANDY ELECTRONICS LIMITED

CANADA: BARRIE, ONTARIO LAM 4W5
U.S.A.: FORT WORTH, TEXAS 76102

TANDY CORPORATION

AUSTRALIA U.I(, BELGIUM
DE NANINNE
K RRAJONG AVENUE BILSTON ROAD, WEDNESEURV PARC INDUSTRIEL
MEIUNl'JI' DRUITT, N.S.W. 2770 WEST MIDLANDS WSIO UN 5100 NANINNE

Primed In Korea

Page 2

Your Realistic TRC-500 is a compact, portable FM 2-way
radio with hands-free operation. You can communicate
with another THC-500 or any FM transceiver operating on
the same frequency. Take your THC-500 to sporting events
or on camping, hiking or bicycling outings. it can add to
the fun of any recreational activity. Locate a friend or find
out "what's cooking back at camp." It can have more
practical uses, too: at your business, in the warehouse
during inventory. in the hospital, at the construciton site.
The uses are practically unlimited!

FEATURES

Transmission range of 1/4 mile (line of sight) -- you get
clean, noise-free reception through the doubleconversion
superheterodyne circuit.

Switchable VOX operation -« you can send your message
automatically or use the push-to-talk button as an
ordinary transceiver.

Adiustable headset -- soft foam-cushioned earphone plus
high-qualitymicrophone that you can swivel freely.
Whip antenna -- you can tack it onto the headset in case
it hinders your movement.

VOX sensitivity -- you can adjust to three levels.

Volume level switch. ,

Lightweight »- it weighs only nine ounces, so it's easy to
carry or, with the belt clip, to clip to your belt or pocket.

CONTROLS AND FUNCTIONS

. Whip antenna
Be sure to straighten the antenna fully when communi-
cating. Secure it to the headset when not in use or when
the straightened antenna hinders your movement. Note,
however, that the efficiency will be reduced by about 75%
when the antenna is retracted.

. POWER switch
Set to MAN for manual opiaration and press the PUSH
TO TALK button when you transmit. At VOX position,
transmit/receive switching is automatic: your voice
activates the transmit circuit. Set to OFF when you have
finished communicating.

. VOLUME control
Select the position that will give you the most com
fortable listening level via earphone.

. VOX/MIC switch
Adjust for sensitivity of the microphone.

. PUSH TO TALK button
Press to talk; release to listen when youre in manual
mode.

. Microphone
Speak here, Adjust the position for best fit.

. Earphone
Listen here.

. Battery compartment (on the rear)
Load a 9-volt battery here.

. Belt clip (on the rear)
Clip your unit to your belt or pocket.

SPECIFICATIONS
GENERAL
Operation Frequency ................ 49.830 MHz
Number of Channels ........................ 1
Input Voltage ......................... 9V DC
Current Drain (Standby) ................. 13.5 mv
(Receive) ............... 40 mA max.
(Transmit) .............. 40 mA max.
Dimensions ....... (H) 4-9/16" (116mm) x (W) 2-1/2"
(64mm) x (D) 15/16 (24mm)
Weight .......................... 9 02 (25.59)
RECEIVER
Sensitivity (20 dB Ouieting) ............... 0.5MV
Squelch Sensitivity (Threshold) .............. 0.5pV
Modulation Acceptance Bandwidth .......... :7 kHz
Spurious and Image Reiection ............ 20 dB min.
Frequency Stability (0°C to + 4ODC) ..... :2 kHz max.
TRANSMITTER
RF Energy Output .......... 10,000uV/m @3 meters
(FCC max.)
Spurious and Harmonic Emissions ............ 20 dB
FM Hum and Noise ................... 40 dB min.
Audio Distortion ..................... 10% max.
Frequency Stability (0° to 40°C) ............ :2 kHz

Page 2

Your Realistic TRC-500 is a compact, portable FM 2-way
radio with hands-free operation. You can communicate
with another THC-500 or any FM transceiver operating on
the same frequency. Take your THC-500 to sporting events
or on camping, hiking or bicycling outings. it can add to
the fun of any recreational activity. Locate a friend or find
out "what's cooking back at camp." It can have more
practical uses, too: at your business, in the warehouse
during inventory. in the hospital, at the construciton site.
The uses are practically unlimited!

FEATURES

Transmission range of 1/4 mile (line of sight) -- you get
clean, noise-free reception through the doubleconversion
superheterodyne circuit.

Switchable VOX operation -« you can send your message
automatically or use the push-to-talk button as an
ordinary transceiver.

Adiustable headset -- soft foam-cushioned earphone plus
high-qualitymicrophone that you can swivel freely.
Whip antenna -- you can tack it onto the headset in case
it hinders your movement.

VOX sensitivity -- you can adjust to three levels.

Volume level switch. ,

Lightweight »- it weighs only nine ounces, so it's easy to
carry or, with the belt clip, to clip to your belt or pocket.

CONTROLS AND FUNCTIONS

. Whip antenna
Be sure to straighten the antenna fully when communi-
cating. Secure it to the headset when not in use or when
the straightened antenna hinders your movement. Note,
however, that the efficiency will be reduced by about 75%
when the antenna is retracted.

. POWER switch
Set to MAN for manual opiaration and press the PUSH
TO TALK button when you transmit. At VOX position,
transmit/receive switching is automatic: your voice
activates the transmit circuit. Set to OFF when you have
finished communicating.

. VOLUME control
Select the position that will give you the most com
fortable listening level via earphone.

. VOX/MIC switch
Adjust for sensitivity of the microphone.

. PUSH TO TALK button
Press to talk; release to listen when youre in manual
mode.

. Microphone
Speak here, Adjust the position for best fit.

. Earphone
Listen here.

. Battery compartment (on the rear)
Load a 9-volt battery here.

. Belt clip (on the rear)
Clip your unit to your belt or pocket.

SPECIFICATIONS
GENERAL
Operation Frequency ................ 49.830 MHz
Number of Channels ........................ 1
Input Voltage ......................... 9V DC
Current Drain (Standby) ................. 13.5 mv
(Receive) ............... 40 mA max.
(Transmit) .............. 40 mA max.
Dimensions ....... (H) 4-9/16" (116mm) x (W) 2-1/2"
(64mm) x (D) 15/16 (24mm)
Weight .......................... 9 02 (25.59)
RECEIVER
Sensitivity (20 dB Ouieting) ............... 0.5MV
Squelch Sensitivity (Threshold) .............. 0.5pV
Modulation Acceptance Bandwidth .......... :7 kHz
Spurious and Image Reiection ............ 20 dB min.
Frequency Stability (0°C to + 4ODC) ..... :2 kHz max.
TRANSMITTER
RF Energy Output .......... 10,000uV/m @3 meters
(FCC max.)
Spurious and Harmonic Emissions ............ 20 dB
FM Hum and Noise ................... 40 dB min.
Audio Distortion ..................... 10% max.
Frequency Stability (0° to 40°C) ............ :2 kHz