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UNIDEN                                                                  Mobile CB Radio

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Mobile CB Radio


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     This compact CB transceiver incorporates state-of-the-art microelectronics into a sophisticated Euro-styled 2-way radio. The superior engineering of the PRO510XL will treat your ears to professional 2-way radio communications as you've never heard it before.

"I have been selling these (510 and 520) for over a decade and I can still say they are one of the best ever made in the small size class. These radios last a very long time without fail."
- Screwdriver

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  • ANL Switch
  • Compact Size
  • Full 40 Channel Operation
  • S/RF Meter
  • MOSFET Final Transistor.
  • Requires a High impedance electret microphone or amplified microphone.  These do not work well with the noise cancelling mics like the 636L or the RK-56

1. ANL Switch - You can select the Automatic Noise Limiter to help
reduce harsh background noise caused by a variety of interference sources.

2. TX LED - An LED lights to indicate when the radio is transmitting.

3. S/RF Meter - This LED meter shows the relative strength of the received signal or the RF output.

4. Channel Indicator - Displays the channel currently in use.

5. Channel Selector - This switch selects the desired channel for transmission and reception.

6. Squelch - The squelch control is used to eliminate background noise during the absence of a transmission.

7. Volume Control - Rotate clockwise to turn the radio on and to increase the volume.

8. Microphone Jack - The operational mode of the CB is controlled by the push-to-talk switch on the microphone.

Antenna Connector - This female connector permits connection of the transmission line cable male connector (PL-259) to the transceiver.

EXT SP Jack - An External 8 Ohm 7-Watt Speaker may be connected to this jack. The internal speaker is disabled when you plug into this jack.




CB Microphone Wiring (Galaxy)



2 Year limited Warranty

...Mobile CB Radio... $64.50


Optional Accessories
 Tune-up. perform a tune-up to radio to increase power, audio and performance $15
 Low Dead Key (carrier). (perform a tune-up to radio to increase peak power with loud audio a lower carrier (dead key). This is perfect to match many amplifier types. $49
 Astatic RD104-E Amplified microphone.
(wired for this radio with a 4 pin plug and a battery installed)
 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)
RF Limited Single DIN PRO510XL CB Radio Mounting Bracket Single DIN In dash Mounting Bracket  $27
Uniden BC-645. Electret Replacement CB Microphone  Wired 4-Pin $14

Tuned up values on these watt meters
Dosy Bird RMS *Bird 43P
AM 4w 4w 4w
Peak 9w 5w 17w
* The most informative meter and the one we use.

If If You are noticing lower power  then they used to do, it is because they changed the final back to "Bipolar" transistors and no longer Mosfets. We started seeing this version around OCT2021.



Channels: 40 AM
Frequency Range:

 26.965 to 27.405 MHz

Frequency Control:

Phase Locked Loop (PLL) synthesizer

 Frequency Tolerance:  0.005%
Operating Temperature:

 -30C to +50C

Microphone:  Plug in type: dynamic
Input Voltage: 13.8 V DC nom. (+ or - ground)
Current Drain: TX: full mod., 1.7A


RX: with max. audio output, 1.7A
Size:  4-1/2 W x 6-3/4 D x 1-3/8 H
Weight:  1 lb. 9 oz.
Antenna Connector:  UHF, SO-239
Power Output: 4 Watts


Class B amplitude modulation
Freq. Response:  300-2500 Hz

Output Impedance:

50 ohms, unbalanced


Sensitivity:  0.5μV for 10 dB; (S + N) /N typical (limit: 1.0μV)
Selectivity:  6 dB @ 7kHz, 70 dB @ 10kHz typical
Image Rejection: 80 dB typical
I.F. Frequency Double Conversion Superheterodyne
1st 10.692 MHz
2nd 450 kHz
Automatic Gain Control (AGC): less than 10dB change in audio output for inputs from 10 to 50,000 microvolts
Squelch: Adjustable; threshold less than1μV
Audio Output Power:  7 watts max. into 8 ohms
Freq. Response:  300 to 2000 Hz
Distortion:  less than 10% at 4 watts, 1000Hz

Internal Speaker:

16 ohms, 3 watts round
Specifications and features are subject to change without notice.
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