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How to turn the wattage up on a uniden pro 510xl

I want to turn the wattage up what can i do?

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  • Cobra Master
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Why does everyone want to turn up the wattage. the most you can legally put out is 4 watts.leave it as is and get a small 100 watt linier amp and you will smoke em.

Posted on Nov 25, 2014

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Posted on Jan 02, 2017

Mechanic688
  • 204 Answers

SOURCE: modification of frequency output of uniden pro 510xl

deweyp, hi, if you are wanting to turn the power up some on the radio, do this; tune L4, L5, L6, L9 for
maximum RF forward output. There are 2 versions of the radio, and both are listed as 510xl. If you are wanting to expand the freq's or add channels, then no, there is no mod for that radio. If your going to tune the radio for more power, make sure you have a power meter to watch the output. It is preferable to tune into a dummy load so your not broadcasting over the air. You tune the radio for peak output, using a steady awwww sound in to the mic. Just be careful as that radio has a fairly small driver and final transistor. Don't want to let the factory smoke out of it,,,
Here is what the little variable adjustments are for and what they control;
VR1 Squelch
VR2 TX Meter
VR3 RX Meter
VR4 RX IF Gain
Hope this helps you out, let us know,, Mechanic

Posted on Feb 19, 2008

tparsenault
  • 170 Answers

SOURCE: Uniden Pro 510xl can send but not receive

If you look on the solder side of board you shoud see a straight line of 5-7 solder joints, look on the other side the audio vhjp is a bmack thin retangular ic chip. Not to worry you wont hurt anything by doing this. Its an old cb tech trick to test audio chips.GOOD LUCK.

Oh one other thing does the radio have same same problem in either vehicle? A insulating washer on the antenna bracket can cause this also,
Happy New Year , Tom

Posted on Dec 31, 2008

  • 14 Answers

SOURCE: I have a Uniden Pro

chk mic, lose cable in **** plug test with other mic .. also test with Ext speaker.. do u get any reading on meter / LED display during RX? does PA work? otherwise your sound chip is dead

Posted on Jan 04, 2011

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1 Answer

Pro510xl schematic


do a search for it. uniden pro 510XL schematic. I found it.

Oct 23, 2013 | Uniden PRO510XL 40-Channels Base CB Radio

1 Answer

How to turn up modulation on uniden PRO 510xl? I noticed it has tuneable vr4, I used vr4 to turn up the modulation on my cobra 29 ltd bt but are they the same on all cb radios?


No they are different. the pro 510 doesn't have a variable like the 29.
just trace the audio wire back to the audio transformer there should be a transistor on that section. best is to change the value of the resistors controling it to increase modulation.. if you take it out.. it will be wide open.. and can cause issues like splattering on adjacent channels. same goes for cutting the audio limiting diode, will cause the same issues. leave the parts in the circuits just change the values to achieve 100% modulation on a scope or wattmeter with a modulation function.

Oct 18, 2013 | Uniden Bearcat Pro PC68XL CB Radio

1 Answer

On my uniden pro 510e I can transmit but I cant receive all I get back is static got any clues?


Hi,

Which radio are you referring to, the Pro 510e or the Pro 510xl?

In any event, to transmit and receive clearly depends on your antenna, it's location and it's surroundings and HEIGHT.

Radio waves on these radios depend mainly on line of sight and propagation factors, If you have an indoor antenna, that could be the problem, if it's an outdoor fixture, it needs to be in such a position so that the coax cable isn't being interfered with by another electrical fixture, the Height of the antenna, is most important, the higher, the better, taking in all these factors and a bit of try this and see approach should find a solution to your reception/transmition issues. That's part of the fun of setting up a base radio, experimentation, configuration and the results you want will be worth the effort.

I hope this has been helpful for you.

Cheers, Peter

Jan 29, 2012 | Uniden PRO510XL 40-Channels Base CB Radio

1 Answer

I looking for sxematic diagram uniden pro 510xl


I hope you find the schematic diagram for your radio......

Aug 25, 2011 | Uniden PRO510XL 40-Channels Base CB Radio

1 Answer

I have a Uniden Pro 510xl, it's about 9 yrs old. I went to use it last week and after turning it on, found that there was no sound, (turned the squelch up) . When I keyed the mic, I saw that I was...


chk mic, lose cable in **** plug test with other mic .. also test with Ext speaker.. do u get any reading on meter / LED display during RX? does PA work? otherwise your sound chip is dead

Dec 30, 2010 | Uniden PRO510XL 40-Channels Base CB Radio

1 Answer

I just have Uniden Por510XL (used) but don't know how to set the channel (programming) so it can match with my handheld radio (i use motorola GP2000)


well a GP2000 has a Frequency range of 136 - 174 MHz, 403-440 MHz or 435-480mhz
a uniden pro 510XL is a 27 mhz radio as far as i know...

Dec 09, 2010 | Uniden PRO510XL 40-Channels Base CB Radio

2 Answers

My uniden pro510xl when hooking it up imediately blows the fuse like a dead short but if i hook up another radio it will work fine


The radio was probably wired backwards at some point. There is a reverse polarity diode inside that must be replaced to fix this. If you have continued replacing fuses and plugging it back in, there may be further damage such as finals or audio amplifier chip as well. you will need to take the radio to a qualified repairman for service. If it is simply the reverse polarity diode, your bill should not be more than an hour's labor charge.

Feb 06, 2010 | Uniden PRO510XL 40-Channels Base CB Radio

1 Answer

Uniden Pro 510xl can send but not receive


If you look on the solder side of board you shoud see a straight line of 5-7 solder joints, look on the other side the audio vhjp is a bmack thin retangular ic chip. Not to worry you wont hurt anything by doing this. Its an old cb tech trick to test audio chips.GOOD LUCK.

Oh one other thing does the radio have same same problem in either vehicle? A insulating washer on the antenna bracket can cause this also,
Happy New Year , Tom

Dec 30, 2008 | Uniden PRO510XL 40-Channels Base CB Radio

6 Answers

Modification of frequency output of uniden pro 510xl


deweyp, hi, if you are wanting to turn the power up some on the radio, do this; tune L4, L5, L6, L9 for
maximum RF forward output. There are 2 versions of the radio, and both are listed as 510xl. If you are wanting to expand the freq's or add channels, then no, there is no mod for that radio. If your going to tune the radio for more power, make sure you have a power meter to watch the output. It is preferable to tune into a dummy load so your not broadcasting over the air. You tune the radio for peak output, using a steady awwww sound in to the mic. Just be careful as that radio has a fairly small driver and final transistor. Don't want to let the factory smoke out of it,,,
Here is what the little variable adjustments are for and what they control;
VR1 Squelch
VR2 TX Meter
VR3 RX Meter
VR4 RX IF Gain
Hope this helps you out, let us know,, Mechanic

Feb 19, 2008 | Uniden PRO510XL 40-Channels Base CB Radio

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