Radio Shack TRC-510 User manual

Cat. No. 21-410
OWNER’S MANUAL
Please read before using this equipment.
TRC-510
Voice-Activated
49 MHz FM Audionic
Five-Channel Transceiver
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FEATURES
Your Radio Shack TRC-510 Voice-Activated 49 MHz
FM Audionic Five-Channel Transceiver is a compact
and portable walkie talkie. You can communicate with
other TRC-510’s, or any other transceiver operating
on one of the same frequencies the TRC-510 uses.
The TRC-510 adds to your fun at sporting events, on
camping trips, or when biking or hiking with your
friends.
The TRC-510 is also practical on the job. Use it when
taking an inventory in a warehouse, keeping track of
your staff in a large building, ortalking to your crew on
a construction site. The TRC-510’s uses are practical-
ly unlimited!
Its features include:
Voice-Actuated or Push-To-Talk Operation — lets
you choose to transmit by simply talking or only when
you press the transmit button.
Maximum Allowed Output Power — gives you up to
1/8of a mile range.
©1995 Tandy Corporation.
All Rights Reserved.
Radio Shack is a registered trademark
used by Tandy Corporation.
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Five Frequencies — let you change channels so you
can either communicate with up to five separate sta-
tions or to eliminate interference.
Belt Clip — lets you attach the TRC-510 securely to
your belt or pocket for hands-free carrying.
Dual-Conversion Superheterodyne Circuitry —
provides clean, clear reception.
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CONTENTS
Preparation ..............................................................5
Installing the Battery...........................................5
Attaching the Belt Clip........................................6
Connecting the Earphone/Microphone...............7
Listening Safely ..........................................8
Traffic Safety...............................................9
Operation ...............................................................10
Care and Maintenance ..........................................14
FCC Notice.......................................................16
Specifications........................................................17
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PREPARATION
INSTALLING THE BATTERY
Your TRC-510 transceiver uses a standard 9-volt bat-
tery. For the longest life, we recommend an alkaline
battery such as Radio Shack Cat. No. 23-553.
Follow these steps to install or replace the battery.
(illus)
1. Remove the battery compartment cover by slid-
ing it in the direction of the arrow.
2. If necessary, remove the old battery and dispose
of it properly.
3. Snap a fresh 9-volt battery onto the wired termi-
nals and place the battery in the battery compart-
ment.
Caution: Use only a fresh battery of the required
size and type.
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4. Replace the cover.
Replace the battery when your transceiver sounds
weak or other transceivers do not receive your trans-
missions when they are setto the same frequency you
are using.
ATTACHING THE BELT CLIP
To install the clip, simply slide it up into the slot on the
back of the transceiver until it locks into place.
(illus)
To remove the clip, lift up on the locking tab and slide
the clip down.
(illus)
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CONNECTING THE
EARPHONE/MICROPHONE
Selectthe rubber tip (four are supplied) that most com-
fortably fits your ear and push it onto the earphone/mi-
crophone.
(illus)
Then insert the two prongs on the TRC-510’s cord into
the earphone/microphone.
(illus)
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Caution:The prongsare differentsizes and fit the ear-
phone/microphone only one way. If you cannot easily
insert the prongs, turn the cord over and try again. Do
not force the connection.
Listening Safely
To protect your hearing, follow these guidelines when
you use an earphone.
• Set the volume to the lowest setting before you
begin listening. After you begin listening, adjust
the volume to a comfortable level.
• Do not listen at extremely high volume levels.
Extended high-volume listening can lead to per-
manent hearing loss.
• Once you set the volume, do not increase it.
Over time, your ears adapt to the volume level,
so a volume level that does not cause discomfort
might still damage your hearing.
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Traffic Safety
Do not wear an earphone while operating a motor ve-
hicle or riding a bicycle. This can create a traffic haz-
ard and is illegal in some areas.
Even though some earphones are designed to let you
hear some outside sounds when listening at normal
volume levels, they still present a traffic hazard.
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OPERATION
You can communicate with other transceivers that op-
erate on these frequencies:
Follow these steps to use the transceiver.
1. Turn the channel selector to the desired channel.
(illus)
TRC-510
Channel Frequency (MHz)
A
B
C
D
E
49.830
49.845
49.860
49.875
49.890
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Note: If using another TRC-510, simply set the
channel selector on both to the same channel. If
using another transceiver, set it to the same fre-
quency as the TRC-510’s corresponding chan-
nel.
2. Set OFF/PTT/VOX to either PTT (for manual push-
to-talk operation) or VOX (for voice actuated
hands-free operation).
(illus)
If you set OFF/PTT/VOX to PTT, you can simply
press PUSH TO TALK to transmit, and release
PUSH TO TALK to receive.
If you set OFF/PTT/VOX to VOX, the TRC-510
automatically begins transmitting when it detects
sound, depending on the VOX HIGH/MID/LOW set-
ting.
(illus)
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•HIGH — for a low-noise area
This setting means the transceiver will begin
transmitting when it detects any voice or back-
ground noise. With this setting, you can speak in
a softer tone of voice to make the transceiver
transmit.
•MID — for a moderate noise area
This setting prevents moderate noises from
keeping the transceiver in the transmit mode.
With this setting, you can speak in a normal tone
of voice to make the transceiver transmit.
•LOW — for a noisy area.
This setting prevents any background noise from
keeping the transceiver in the transmit mode.
With this setting, you must speak louder to make
the transceiver transmit.
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3. Set VOLUME HIGH/MID/LOW to LOW, insert the
earphone/microphone into your ear, then set
VOLUME HIGH/MID/LOW to the most comfortable
listening level.
(illus)
4. Set OFF/PTT/VOX to OFF to turn off the trans-
ceiver.
Notes:
• The TX/BUSY indicator lights green when your
TRC-510 receives a sound, and lights red when
it transmits a sound.
(illus)
• The TRC-510 cannot receive while you transmit.
To avoid interrupting a reception, wait for the
other person to stop talking before you start.
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CARE AND MAINTENANCE
Your Radio Shack TRC-510 Voice-Activated 49 MHz
FM Audionic Five-Channel Transceiver is an example
of superior design and craftsmanship. The following
suggestions will help you care for the transceiver so
you can enjoy it for years.
Keep the transceiver dry. If it gets
wet, wipe it dry immediately. Liquids
can contain minerals thatcan corrode
the electronic circuits.
Handle the transceiver gently and
carefully. Dropping it can damage cir-
cuit boards and cases and can cause
it to work improperly.
Use and store the transceiver only in
normal temperature environments.
Temperature extremes can shorten
the life of electronic devices and dis-
tort or melt plastic parts.
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Keep the transceiver away from dust
and dirt, which can cause premature
wear of parts.
Wipe the transceiver with a damp
cloth to keep it looking new. Do not
use harsh chemicals, cleaning sol-
vents, or strong detergents to clean
the transceiver.
Use only a fresh 9-volt battery. Al-
ways dispose of an old battery
promptly and properly.
Modifying or tampering with your transceiver’s internal
components can cause a malfunction and might inval-
idate the transceiver’s warranty and void your FCC au-
thorization to operate it. If your transceiver is not
performing as it should, take it to your local Radio
Shack store for assistance.
CLEANER
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FCC NOTICE
Your transceiver might cause TV or radio interference
even when it is operating properly. To determine
whether your transceiver is causing the interference,
turn off your transceiver.If theinterference goes away,
your transceiver is causing it.
Try to eliminate the interference by:
• Moving your transceiver away from the receiver.
• Contacting your local Radio Shack store for help.
If you cannot eliminate the interference, the FCC re-
quires that you stop using your transceiver.
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SPECIFICATIONS
Operating Frequencies:
Channel A............................................... 49.830 MHz
Channel B................................................49.845 MHz
Channel C............................................... 49.860 MHz
Channel D................................................49.875 MHz
Channel E................................................49.890 MHz
Input Voltage.....................................................9 VDC
Current Drain......................... (Stand By) 30 mA MAX
(Receive) 40 mA MAX
(Transmit) 60 mA MAX
Dimensions (HWD)..............25/8×57/16 ×17/16 Inches
(66.2 ×140 ×30.5 mm)
Sensitivity...........(20 dB Quieting)1 mV MAX Squelch
(Threshold) 1 mV MAX Modulation
Acceptance Bandwidth......................... (±)7 kHz MIN
RF power Output................... 10,000 mV @ 3 meters
(FCC MAX)
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Spurious and Image Rejection...................20 dB MIN
Spurious and Harmonic Emissions ......20 dB MIN FM
Hum and Noise...........................................30 dB MIN
Audio Distortion...........................................10% MAX
Frequency Tolerance (0°C to 40°C) ..... (±)2 kHz MAX
Specifications are typical; individual units might vary.
Specifications are subject to change and improvement
without notice.
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NOTES
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RADIO SHACK
A Division of Tandy Corporation
Fort Worth, Texas 76102
6A5 Printed in the Philippines
RADIO SHACK LIMITED WARRANTY
This product is warranted against defects for 90 days from
date of purchase from Radio Shack company-owned stores
and authorized Radio Shack franchisees and dealers.
Within this period, we will repair it without charge for parts
and labor. Simply bring your Radio Shack sales slip as
proof of purchase date to any Radio Shack store. Warranty
does not cover transportation costs. Nor does it cover a
product subjected to misuse or accidental damage.
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES
NO EXPRESS WARRANTIES AND ANY IMPLIED WAR-
RANTIES ARE LIMITED IN DURATION TO THE DURA-
TION OF THE WRITTEN LIMITED WARRANTIES
CONTAINED HEREIN. Some states do not permit limitation
or exclusion of implied warranties; therefore, the aforesaid
limitation(s) or exclusion(s) may not apply to the purchaser.
This warrant
y
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ives
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ou ma
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also have
other ri
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from state to state.
We Service What We Sell
9/94
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