CAT Enterprises

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Mobile CB Radio

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AM/SSB Mobile Radio

Download Manual

Upgrades !!
POWERBAND RFX-85 Installed.
Original Equipment Final Output Section with high performance low pass filter.
Replace both detector diodes with low noise Schottky diodes increasing receiver sensitivity lowering the noise floor.
Replace noise blanker diodes with low noise Schottky diodes to improve the reduction artificial electrical noise.
Replace receiver 1st RF transistor for increased gain,  increasing receiver sensitivity and again lowering the noise floor.
I don't Replace any other AF or RF stage components. They don't need to be.
I precisely tune the Receiver IAW The Factory Service manual Chapter 4.1.3 (8 steps).
I precisely tune the Transmitter IAW The Factory Service manual Chapter 4.1.2 (9 steps).
I precisely tune the Synthesizer IAW The Factory Service manual Chapter 4.1.1 (This is the frequency alignment and is 8 steps).
I adjust the final and driver MOSFET gate voltage for proper RF bias.
I AM an actual repair facility
we do repairs and you
don't have to send it to
Galaxy. I will warranty for a
full 90 days and Galaxy
warranty remains intact for
2 years.
I use only NEW Galaxy radios, NO REFURBs like my competition.
  ** IAW= In Accordance With


The item for bid is a BRAND NEW, never been opened, GALAXY DX-979 CB radio. We are an authorized dealer of GALAXY radios and are offering this to you at a great price.

With a New Original Equipment Final Output Section with high performance low pass filter:

     This radio will be removed from the box BRAND NEW and then be modified using new and better receiver parts ( 4 diodes and one transistor) to improve the sensitivity and lower the noise. By utilizing a high gain, super low noise transistor and four Schottky diodes in the AM detection and Noise Blanker stages it will increase the incoming signal and greatly improve the signal to noise ratio in the receiver (by approx 6db or 1 S-unit).

After the RX mods are done a frequency alignment to the synthesizer will be done in AM, USB and LSB modes individually.  The receiver will be aligned maximum reception. The transmitter will have the final stages removed and a new and better section, called the RFX-85 installed and then output is aligned for maximum power and modulation allowed by the FCC. 

Maximum allowed by the FCC.

No alignments or tuning will bring the radio to any harmful levels.


Screwdriver Audio

All radio work will be performed by:





  • RFX-85 watt high power output section.
  • BLUE Channel display
  • BLUE meter light
  • Starlite Faceplate
  • New Smaller Chassis
    7.25"W x 2.25H
  • Front panel mic Jack
  • Large, easy-to-read meter with 4 scales:
    1. "S" Meter indicates up to 60 dB over S9
    2. Modulation Percentage Scale
    3. Power Scale
    4. SWR Scale
  • Automatic SWR Circuit (no complicated calibration procedure)
  • "Talkback" Circuit with Volume Control
  • Variable Power Output Control
  • Two Year Warranty as explained below:

Additional Features:

  • Pre-wired for FC 347 Frequency Counter
  • Noise Blanker and Automatic Noise Limiter
  • LED Indicator for RX/TX
  • LED Channel Indicator
  • Dimmer Control
  • Receive Gain Control
  • Mic Gain Control





... DX-979 Professional AM CB radio
 with RFX-85
AM carrier 15 watts and 75+ watts peak power.
SSB output 65-75w PEP

For 150W of power see the 


Optional Accessories
 frequency conversion. OPTION #1(Install extra channels with switches in back of radio and tune up radios output) $79
frequency conversion. OPTION #2
(Install extra channels with a Lescomm 120 channel kit and tune-up)


Slider Option
 Clarifier "Slider" conversion.
(Modify the Clarifier to control TX and RX frequency. This mod is an add-on to the two frequency conversion mods listed above and if done separately will cost $35)
 RFX-85 Fan Kit Installed. One or Two 40mm Black Fans  controlled with the radios on/off switch.  

 Install an MD-1 Top Gun Modulator.
(wired behind the radio with optional switch for on/off)
 Install an CP-1 Top Gun Audio Compressor. (on - all the time) This amplifies your lower level audio on transmit.
NOTE: It becomes difficult to use the Talkback even at low volume with this mod.

 Turner RK-56 Noise Canceling microphone.
(wired for this radio with a 4 pin plug)

 Astatic 636L Noise Canceling microphone.
(wired for this radio with a 4 pin plug)

 Astatic D104-M6b Amplified microphone.
(wired for this radio with a 4 pin plug and a battery installed)
 Astatic RD104-E Amplified microphone.
(wired for this radio with a 4 pin plug and a battery installed)
 Install an Echo board. (BACK or SIDE)
(wired internal to the radio with dual controls on the side or back to control speed and echo effects)
 Install an Echo board. (Front)
(with dual controls on the front in the Talkback location. Talkback control is cut free of the clarifier board and moved to the side.)
 Install a Roger Beep switch.
(wired inside the radio with a switch for on/off in back to give you control of the secret roger beep already inside your radio)

Sound Byte link

 Install a Noise toy
(wired inside the radio with a switch or pushbutton to trigger any 18 second sound byte you want)

Sound Byte link

 Install a Noise toy as a background theme music
(wired inside the radio with a switch to play any background music at very low volume so you can talk over it.)

  Install a Record/Playback Module 18 seconds (wired inside the radio with  a switch on the side to record 18 seconds and to play it back) $77
 Add a Small External Speaker
(plugs into back of the radio for improved sound)
 Add a Large External Speaker
(plugs into back of the radio for improved sound)
 The  FC-347 is a small frequency counter which indicates the frequency of the selected channel. This plugs directly into the freq counter jack in the back of the radio. $59 
LED Color
FC-30 Frequency Counter large face and dual input type, a plug  for this radio and external input for other radio types that have no plug in the back. $69


Install Nitro Knobs with dimmer control integration circuit built so it dims with the factory adjustment. 6 Knob set parts and labor.


Your Gmail

Tune-up VIDEO. Make a completion video to show tune-up levels and modifications demo. Enter your Gmail so we can send a share to our Google drive for you to view. We upload twice monthly. $19



Channels 40
Frequency Range 26.965 ~ 27.405 MHz
Emission AM/USB/LSB
Frequency Control Phase-Lock-Loop (PLL) Synthesizer
Frequency Stability 0.001%
Temperature Range -30C to +50C
Antenna Impedance 50 Ohms
Antenna Connectors Standard SO-239 type
Input Voltage 13.8V DC
Size 7 1/4 (W) x 9 (D) x 2 1/4 (H)

3.5 lbs

RF Power Output AM: 5 - 15W 60+W peak;
USB/LSB: 20 - 50+W PEP
Spurious Emission > -60 dB
Unwanted Sideband -50 dB
Audio Distortion < 5%
Frequency Response

300 to 2500 Hz

Microphone  Dynamic
Sensitivity for 10 dB (S+N)/N AM < 0.5 uV ; USB/LSB: < 0.25 uV
Squelch Sensitivity

 < 0.5 uV


Selectivity  > -50 dB
Image Rejection > 60 dB
Hum & Noise > -40 dB
AGC Figure of Merit 50 mV for 10 dB Change in Audio Output
Audio Power Output 2.5W @ 10% Distortion
Audio Response  300 to 2500 Hz


Galaxy DX979 with RFX-85
Click for larger images..


The item most overlooked when ordering a custom radio is the microphone.  Your new tuned radio will NOT
sound great  with a stock mic on it  If your CB is more than a tool for work, you NEED to upgrade your microphone. 
My personal favorites are the Astatic 636L and RD104E.

If you place an order from outside the continental USA, we will calculate your actual shipping and send you a PayPal payment request.  We do NOT export Antennas or Base station radios.


954-771-8161 Our Warranty and Return Policy    


BellsCB Radio, 5051 NE 12th Avenue, Oakland Park, Florida. 33334   (954)771-8161