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11

Using CH9 

Important:  Channel 9 is reserved for
motorist assistance and for reporting
emergency information about acci-
dents, hazardous road conditions,
and so on. Always give emergency
messages priority on Channel 9.  

You can instantly switch to Channel 9
at any time by pressing CH9. The
display shows 

9

.

Note: Pressing CH9 disables CHAN-
NEL
 and SCAN.

To return to normal operation, press
CH9 again. Your CB returns to the
channel you were previously using.

Using SCAN

You can use the scan function to
scan for incoming signals. Press
SCAN. The TRC-495 starts to scan,
and the SCAN indicator lights. 

The CHANNEL indicator shows the
scanned frequencies, then stops at
the incoming signal.

Note: If the signal is lost for about 3
seconds, the CB begins scanning
again.

Using NB and ANL 

If you encounter noise while receiv-
ing, press NB (noise blanker) or ANL
(automatic noise limiter). The NB or
ANL indicator lights, and the noise
level should drop.

NB eliminates impulse-type noise
(like that produced by vehicle igni-
tions or engines).

ANL reduces the level of continuous
noise so it does not interfere with re-
ception.

If you still hear the noise, refer to
“Noise Reduction” for additional in-
formation. 

If parts of the received signal sound
choppy, press NB or ANL again (to
the out position) to turn off the func-
tion.

21-1579.fm  Page 11  Thursday, August 5, 1999  9:34 AM

Summary of Contents for TRC-495

Page 1: ...Cat No 21 1579 OWNER S MANUAL 40 Channel CB Base Station Transceiver Please read before using this equipment TRC 495 21 1579 fm Page 1 Thursday August 5 1999 9 34 AM...

Page 2: ...the following valu able features Large Analog Meter lets you see how well you are getting out and how well others are getting in Scan seeks out other CB users by searching through all channels for tra...

Page 3: ...ations Com mission FCC does not require you to get a CB license to operate your CB However you are required to know Part 95 of FCC Rules This in formation applies to the operation of a Class D citizen...

Page 4: ...an External Speaker 8 Connecting Headphones 8 Operation 9 Receiving Transmissions 9 Transmitting 10 Using Special Controls 10 Using CH9 11 Using SCAN 11 Using NB and ANL 11 Using RF GAIN 12 CB Courte...

Page 5: ...or 20 feet higher than the highest point on a building For the best performance the antenna must be tuned see the instructions provided with the antenna and positioned verti cally Select an antenna w...

Page 6: ...ECTING THE MICROPHONE Mount the supplied microphone clip on the left side of the CB horizontally or vertically using the two supplied screws Then slide the microphone onto the microphone holder Connec...

Page 7: ...ower If you want to use your CB where 120 volt AC power is not available for example when AC power fails or at a remote location you can power your CB from 12 volt DC power Use the supplied DC power l...

Page 8: ...d for use as an external CB speaker Connecting an external speaker silences the CB s internal speaker CONNECTING HEADPHONES To reduce distractions or help you hear weak signals you can use your CB wit...

Page 9: ...t VOLUME to MIN 2 To turn on the CB press POWER to the position The CHANNEL display shows the last channel used 3 Turn RF GAIN to HIGH fully clockwise 4 Turn SQUELCH to MIN fully counterclockwise so y...

Page 10: ...o select a channel 2 Hold the microphone about 3 inches from your mouth Press and hold the microphone s talk button and speak in a normal voice The TX POWER meter shows the strength of the transmittin...

Page 11: ...AN indicator lights The CHANNEL indicator shows the scanned frequencies then stops at the incoming signal Note If the signal is lost for about 3 seconds the CB begins scanning again Using NB and ANL I...

Page 12: ...talking This is called dead keying Help callers with directions information about road condi tions and any other reasonable requests Always yield any channel for emergency transmissions MAXIMUM RANGE...

Page 13: ...busy or are you busy 10 7 Out of service 10 8 In service 10 9 Repeat last message 10 10 Negative No 10 11 ____________ in service 10 12 Stand by 10 13 Report ____________ conditions 10 14 Information...

Page 14: ...active channel Microphone connected Connect micro phone Antenna con nections Secure connec tions RF gain too low Adjust RF GAIN as needed Channel 9 locked Press CH9 again Check Solution Transmission c...

Page 15: ...en na or cable might cause noises Try relocating your CB or antenna away from any noise generating sources Provide a good ground for your antenna with UL listed compo nents Ensure a good shielding con...

Page 16: ...e extremes can shorten the life of electronic devices and distort or melt plastic parts Keep the CB away from dust and dirt which can cause premature wear of parts Wipe the CB with a damp cloth occasi...

Page 17: ...ts the CB when you power it from 12 volts DC If the CB does not work when you apply power check the fuse If it has blown replace it with one of an identical type and rating 2 Amps Cat No 270 1007 1 Gr...

Page 18: ...Frequency Coverage All 40 CB Channels Class D 26 965 to 27 405 MHz Output Power 4 Watts Modulation Capability 90 Spurious Emission Less Than 70 dB Frequency Tolerance 0 002 Antenna Impedance 50 Ohms...

Page 19: ...19 NOTES 21 1579 fm Page 19 Thursday August 5 1999 9 34 AM...

Page 20: ...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...

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