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PROCEDURE TO RECEIVE AND TRANSMIT

A. MICROPHONE

The  receiver  and  transmitter  are  controlled  by  the  push-to-talk  switch  on  the
microphone. Press the switch and the transmitter is activated, release switch to
receive.  When  transmitting,  hold  the  microphone  two  inches  from  the  mouth
and speak clearly in a normal voice. The transceiver comes complete with a low
impedance dynamic microphone. 

B. PROCEDURE TO RECEIVE

1.  Be  sure  that  power  source,  microphone  and  antenna  are  connected  to  the

proper connectors before going to the next step.

2. Turn 

VOL

 knob clockwise to apply power to the radio.

3. Set the 

VOL

 for a comfortable listening level.

4. Set the 

MODE

 switch to the desired mode.  

5. Listen to the background noise from the speaker. Turn the 

SQ

 knob slowly

clockwise until the noise just disappears. The 

SQ

 is now properly adjusted.

The  receiver  will  remain  quiet  until  a  signal  is  actually  received.  Do  not
advance the control too far or some of weaker signals will not be heard.

6. Set the 

CHANNEL 

selector switch to the desired channel.

7. Set the 

RF GAIN

 control fully clockwise for maximum RF gain.

8.  Adjust  the 

CLARIFIER

  control  to  clarify  the  SSB  signals  or  to  optimize

AM signals.

C. PROCEDURE TO TRANSMIT

1. Select the desired channel of transmission

2. Set the 

MIC GAIN 

control fully clockwise.

3. If the channel is clear, depress the push-to-talk switch on the microphone and

speak in a normal voice.

RECEIVING SSB SIGNALS

There  are  three  types  of  signals  presently  used  for  communications  in  the
Citizens  Band  :  AM,  USB,  LSB.  When  the  MODE  switch  on  your  unit  is
placed in the AM position, only standard double-side band, full carrier signals
will be detected. An SSB signal may be recognized while in the AM mode by
its  characteristic  "Donald  Duck"  sound  and  the  inability  of  the  detector  to
produce an intelligible output. The USB and LSB modes will detect upper side
band and lower side band respectively, and standard AM signals.

SSB reception differs from standard AM reception in that an SSB receiver does
not require a carrier or opposite side band to produce an intelligible signal. A
single-side band transmitted signal consists only of the upper or the lower side
band and no carrier is transmitted. The elimination of the carrier from the AM
signal  helps  to  eliminate  the  biggest  cause  of  whistles  and  tones  heard  on
channels  which  make  even  moderately  strong  AM  signals  unreadable.  Also,
SSB  takes  only  half  the  space  of  an  AM  channel,  therefore  two  SSB
conversations will fit into each channel, expanding the 40 AM channels to 80
SSB  channels.  The  reduction  in  channel  space  required  also  helps  in  the
receiver  because  only 

half

  of  the noise  and  interference  can be  received  with

100% of the SSB signal.

An SSB signal may be received only when the listening receiver is functioning
in  the  same  mode.  In  other  words,  an  upper  side  band  signal  (USB)  may  be
made intelligible 

only

 if the receiver is functioning in the USB position. 

If  a  lower  side  band  (LSB)  signal  is  heard  when  the  receiver  is  in  the  USB
mode, no amount of tuning will make the signal intelligible. The reason for this
may be understood if you consider that when the modulation is applied to the
transmitter's microphone in the USB mode, the transmitter output frequency is
increased  whereas  in  the  LSB  mode  the  transmitter's  output  frequency  is
decreased. 

The result in listening to the receiver is that when the MODE switch is in the
proper  position  (either  USB  or  LSB),  a  true  reproduction  of  a  single  tone  of
modulation  will  result,  and  if  the  tone  is  increased  in  frequency  (such  as  a
low-pitched whistle or a high-pitched whistle) you will hear the increase in the
output tone of the receiver. If the incorrect mode is selected, an increase in tone
of a whistle applied to the transmitter will cause a decrease in the resultant tone
from the receiver.

- 12 - 

- 11 - 

Zeon PDF Driver Trial

www.zeon.com.tw

Содержание TR-966

Страница 1: ...CA 91950 800 446 5778 FAX 619 426 3788 Email rci rangerusa com http www rangerusa com Printed In Malaysia AT6960A11B PD000619 TR 966 SOLID STATE CITIZENS BAND AM SSB MOBILE TRANSCEIVE R OWNER S MANUAL Zeon PD F D river Trial w w w zeon com tw ...

Страница 2: ...mV for 10 dB Change in Audio Output AGC Figure of Merit More than 65 dB Image Rejection 2W at 10 THD Audio Power Output 0 5uV Squelch Sensitivity 0 5 uV AM 0 25 uV SSB Sensitivity for 10 dB S N N RECEIVER Dynamic Microphone 300 to 2500 Hz Frequency Response 10 Audio Distortion 55 dB Spurious Emission 55 dB Carrier Emission AM 4W SSB 12W PEP RF Power Output TRANSMITTER 5 0 lbs Weight 7 7 8 W x 9 1 ...

Страница 3: ...a mobile receiver at low signal levels is normally limited by the presence of electrical noise The primary source of noise in automobile installations is from the generator and ignition system in the vehicle Under most operating conditions when signal level is adequate the background noise does not present a serious problem Also when extremely low level signals are being received the transceiver m...

Страница 4: ...o proper length 1 Follow the same procedure as above but adjust the length by cutting in 1 8 increments until a good match is obtained 2 Be very careful not to cut too much at one time as once it is cut it can no longer be lengthened 3 The whip is easily cut by filing a notch all the way around and breaking the piece off with pliers If your are having difficulties in adjusting your antenna check t...

Страница 5: ...e the standing wave ratio turn the switch to the SWR position 7 MODE CONTROL This control allows you to select one of the following operating modes PA LSB AM USB 8 CLARIFIER CONTROL Allows tuning of the receive frequency above or below the channel frequency by up to 1 5 KHz Although this control is intended primarily to tune in SSB signal it may be used to optimize AM signals 9 CHANNEL SELECTOR Th...

Страница 6: ...he black goes to negative and the red goes to positive FREQUENCY CHART 27 405 MHz 40 27 205 MHz 20 27 395 MHz 39 27 185 MHz 19 27 385 MHz 38 27 175 MHz 18 27 375 MHz 37 27 165 MHz 17 27 365 MHz 36 27 155 MHz 16 27 355 MHz 35 27 135 MHz 15 27 345 MHz 34 27 125 MHz 14 27 335 MHz 33 27 115 MHz 13 27 325 MHz 32 27 105 MHz 12 27 315 MHz 31 27 085 MHz 11 27 305 MHz 30 27 075 MHz 10 27 295 MHz 29 27 065 ...

Страница 7: ... modes will detect upper side band and lower side band respectively and standard AM signals SSB reception differs from standard AM reception in that an SSB receiver does not require a carrier or opposite side band to produce an intelligible signal A single side band transmitted signal consists only of the upper or the lower side band and no carrier is transmitted The elimination of the carrier fro...

Страница 8: ... sound that was recorded If the record is played on a turntable that is rotated in the wrong direction opposite side band no amount of speed control CLARIFIER will produce an intelligible sound An AM signal received while listening in one of the SSB modes will produce a steady tone carrier in addition to the intelligence unless the SSB receiver is tuned to exactly the same frequency by the CLARIFI...

Страница 9: ...MEMO MEMO Zeon PD F D river Trial w w w zeon com tw ...

Страница 10: ...e Department before any returns for warranty repair will be accepted Send the defective product POSTAGE PAID along with proof of the date of purchase photocopy of the original invoice or receipt to 401 W 35th Street Suite B National City CA 91950 TEL 800 446 5778 619 426 6440 FAX 619 426 3788 E mail rci rangerusa com 4 This warranty does not cover cosmetic damage or damage due to acts of Gods acci...

Страница 11: ...Zeon PD F D river Trial w w w zeon com tw Zeon PD F D river Trial w w w zeon com tw ...

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