Question about Uniden PRO520XL 40-Channels Base CB Radio

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Adjust modulation pot - Uniden PRO520XL 40-Channels Base CB Radio

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There is a transformer inside by where the coax comes into the radiolook for the closest variable to it and turn that one. the pwr is L6,L9 and the mod is Q6amc this radio cNNOT BE modifyed.

Posted on Sep 17, 2014

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Posted on Jan 02, 2017

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2 Answers

Where is the modulation pot on the dx 919 v 16


did you use a meter when you set the pot? there are two pots to adjust . one for high modulation and they other for low modulation . Apparently you didn't read the schematic good enough.

Feb 27, 2015 | Radio Communications

1 Answer

How th adjust peek modulation on a midland 1001lwx cb radio


VR 2 is the pot you are looking for an now you need a modulation meter. Speak into the mic at the volume you will be talking on the radio. One one one one while adjusting for 100 percent anymore an you will begin distorting.

Jun 03, 2014 | Midland 1001LWX CB Radio

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Adjust modulation pot


Can't tell you but if its anything like my 9001z the variables are clearly marked. www.cbtricks.com has your schematic.Go look at it and find the pot or vr turn turn up the modulation.

Dec 04, 2013 | MidiLand 5001Z CB Radio

1 Answer

Adjust modulation pot cb


4 watts on am and 12 on ssb the modulation pot isn't going to help you . go to www.cbtricks.com and get the service manual.

Jul 27, 2013 | Galaxy Radios DX-979 40-Channels Base CB...

1 Answer

Adjust modulaion pot dx919


TO ADJUST MODULATION IN THIS RADIO THE POT IS MARKED
V-16 TURN CLOCKWISE ,CAUTION VERY FRAGIL BE VERY GENTLE SIR

Feb 24, 2013 | Galaxy Radios DX-919 40-Channels Base CB...

1 Answer

I have installed a supermod on my radio clipped d11 and added varible pwr to the delta tune knob it worked fine for a couple of days the varible was touchy now it will key up but will not modulate. i...


  • Why would you cut d11 when you can adjust VR4 and have it sound so much better? When you cut d11 you put that modulation into overdrive. Put that diode back and adjust VR4 for 100% modulation. That is step one.
  • I assume you added variable power from J36. The problem with adding variable power and not switching the pot is that the wires not only have major loss, running to the pot. And two the stock potentiometer tend to burn up if not replaced with a potentiometer that adjust power by itself. Undo this so called "super mod."
  • Start with a 1969 final for better handling of power.
  • Adjust VR4 for 100% modulation.
  • You can pull the ferrite out of the pot next to the final transistor or you can remove j36 and add a 330uf capacitor (black stripe, negative) to the rear and bias the soldier side with a 33uf resistor. Soldier the resistor to the same soldier points of the Capacitor.
  • Adjust L14,L13 and L12 for power.

Regards, Tony

May 17, 2011 | Cobra 29 LTD CB Radio

1 Answer

Modulation on 1001Lwx midland cb low need to know which pot to adjust


hello,
The limiter is what limits the modulation. Often times there is a pot that you can turn to adjust it. To get more power and swing out of your radio do this DM1 is the mod limiter RVM1 is the mod pot. Adjust this for maximum modulation. Spread the coils marked Lt5/LT12 just a little Spread LT7/LT11 a lot.
Regards, Tony

Apr 13, 2011 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

Midland1000cb very littel audio w/stock or powermic,what is the limiter?


The limiter is what limits the modulation. Often times there is a pot that you can turn to adjust it. To get more power and swing out of your radio do this
DM1 is the mod limiter RVM1 is the mod pot. Adjust this for maximum modulation Spread the coils marked Lt5/LT12 just a little Spread LT7/LT11 a lot
Hope this helps.

Mar 08, 2011 | Midland 1001Z 40-Channels Base CB Radio

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