Table of Contents
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DX 979
AM / SSB Two Way
Citizens Band Mobile Transceiver
With StarLite Face Plate
OWNERS MANUAL
TABLE OF CONTENTS
CHAPTER 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing The Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Noise Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Public Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 3
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Procedure to Receive and Transmit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiving SSB Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance And Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A Few Rules That Should Be Obeyed . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Your CB Can Serve You . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Use Channel 9 For Emergency Message Only . . . . . . . . . . . . . . . . . . . . . .
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Summary of Contents for Galaxy DX 979
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Page 1: Table Of Contents
TABLE OF CONTENTS PAGE CHAPTER 1 DX 979 Specifications ..........CHAPTER 2 Installation . -
Page 2: Specifications
CHAPTER 1 SPECIFICATIONS CHAPTER 2 INSTALLATION GENERAL INSTALLING THE RADIO Choose a convenient location for operation that does not interfere with driver or Model DX 979 passenger. This radio is supplied with a universal mounting bracket. When mounting Channels the bracket and radio to your car, make sure it is mechanically strong. Also, provide a Frequency Range 26.965 ~ 27.405 MHz good electrical grounding connection to the chassis of vehicle. -
Page 3: Ignition Noise Interference
IGNITION NOISE INTERFERENCE CHAPTER 3 OPERATION With weak signals, you may experience interference of the signal by background noise. This radio has NB and ANL circuits which will help reduce background noise CONTROL FUNCTIONS from sources such as your ignition system. However, background electrical noise may FRONT PANEL come from several sources and all noise may not be eliminated. - Page 4 5. MIC GAIN CONTROL: Adjusts the microphone gain in the transmit and PA 15. NB-ANL/CB/PA SWITCH: When the switch is in the NB/ANL position, the Noise Blanker (NB) and Automatic Noise Limiter (ANL) circuits are activated. modes. This controls the gain to the extent that full talk power is available several The Noise Blanker is very effective in eliminating repetitive impulse noise such inches away from the microphone.
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Page 5: Rear Panel
27.175 MHz 27.385 MHz 5. F.C.: This jack is used to connect the optional Galaxy FC347 six-digit frequency counter. All connections, including DC power, are provided to the FC347 through 27.185 MHz 27.395 MHz... -
Page 6: Procedure To Receive And Transmit
PROCEDURE TO RECEIVE AND TRANSMIT RECEIVING SSB SIGNALS A. MICROPHONE There are three types of signals presently used for communications in the Citizen The push-to-talk switch on the microphone controls the receiver and transmitter. Band: AM, USB and LSB. When the MODE switch on your unit is placed in the AM Press the switch and the transmitter is activated, release switch to receive. -
Page 7: Alternate Microphones And Installation
Thus when a voice is used in place of a whistle or tone, in the proper listening mode ALTERNATE MICROPHONES AND INSTALLATION the voice will be received correctly whereas in the incorrect mode, the voice will be translated backwards and cannot be made intelligible by the CLARIFIER control. For best results, the user should select a low-impedance dynamic type microphone When listening to an AM transmission, a correct side band is heard in either mode or a transistorized microphone. - Page 8 Before beginning the actual wiring, read carefully the circuit and wiring information 5. The wires must now be soldered to the pins as indicated in the above wiring tables. provided with the microphone you select. Use the minimum heat required in soldering If a vise or clamping tool is available it should be used to hold the pin receptacle the connections.
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Page 9: Maintenance And Adjustment
A FEW RULES THAT SHOULD BE OBEYED 9. The two cable clamp retainer screws should now be tightened to secure the housing to the microphone cord. If the cutting directions have been carefully followed, the cable clamp should secure to the insulation jacket of the microphone 1. -
Page 10: Use Channel 9 For Emergency Message Only
USE CHANNEL 9 FOR EMERGENCY MESSAGES ONLY MEMO The FCC gives the following examples of permitted and prohibited types of communications for use in an emergency. These are guidelines and are not intended to be all inclusive. Permitted Example Message “A tornado sighted six miles north of town. - Page 11 MEMO MEMO...
- Page 12 Two Year Warranty This new Galaxy radio is covered by a two year limited warranty. Here are the details. • All of our Galaxy radio model numbers begin with the letters “DX” and are covered by our Limited Two Year Parts and Labor Warranty.
- Page 13 Printed in China AT0919030A...
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