Question about Uniden PRO510XL 40-Channels Base CB Radio

6 Answers

Modification of frequency output of uniden pro 510xl

How do you turn up frequency output?

Posted by on

6 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 204 Answers

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

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Don't clip anything. In the older version clipping d14 would open the modulation power but ultimately burn out the finals. SO DON'T clip anything.

Posted on Mar 06, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

There is a frequency conversion using certain crystals from old CB radios made back in the early years. I have a friend who has 26.895 in his because all of the locals talk on the lower channel. On most exports it's channel 34, 1 band down from regular CB band.

Posted on Dec 20, 2015

Dont touch the radio
simply buy a better antenna and perhaps an amplifier
you can get a RX and TX amp for £30 or so
this will boost both TX and RX

but you need to make sure your antenna is aok and has a good resonance and SWR

so you need a decent meter to check it with the added output

Posted on Dec 02, 2014

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 18 Answers

Well the question was
Modification of frequency output of uniden pro 510xl if you are wanting to add more frequencies or channels to your radio it is possible however it can be a bit expensive as well as have some legal issues instead i would like to invite you to become a ham radio operator and you have a wide range of frequencies to acsess and a plethora of different modes it is very easy to do and cost less than modifying and possibly damaging your equipment..

Posted on Jul 12, 2014

In the newer version clip D 203 and retune

Posted on Aug 28, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

PPR RBT1


All radio's are factory set up and although you can tweak parts, this is usually at the expense of longevity or reliability.
To tweak a radio properly and ensure it remains legal, you will need the service manual, an accurate frequency counter and standard, a nice dummy load and an oscilloscope. If you turn anything inside and do not know what you are doing, you could end up stressing output components due to signal mismatching and possibly end up with spurious transmissions which can interfere with other electronic equipment.

Mar 03, 2014 | Ranger CB Radios

1 Answer

How do i adjust the sideband


Instructions

Connect one end of your coaxial cable to the output port on your SSB Transmitter. Connect the other end of the cable to the coaxial input port on your RF demodulator.

Connect one end of your 1/4 inch audio cable to the audio output port on your RF modulator. Connect the other end of the audio cable to the audio input jack on your amplifier.

Turn on your SSB transmitter, RF modulator and amplifier. Adjust your SSB transmitter modulation by adjusting the knob on your RF

Jul 22, 2012 | Ranger RCI-6900F-25 CB Radio

1 Answer

Ihave a gargeled recive sound


Check the position of the mode selector switch. You may be receiving a SSB (single side band) transmission that is not on the exact same frequency as you or, your radio is in AM or FM mode. You will need to select either USB or LSB (upper or lower side band) and vary the clarifier knob until the sound becomes intelligible. If the sound does not become clear, try the other side band and repeat varying the clarifier knob.

Conversely, if you are in USB or LSB mode and there is a transmission on AM or FM, it will have the same garbled sound. Try changing the mode to AM and the FM. If it does not become clear, it is likely a SSB transmission and you are not on the exact same frequency of the transmission you are hearing. Vary the clarifier knob until it becomes clear - or change to the other side band if needed and try the clairfier again.

The short story is that you must be in the same mode and on the same exact frequency. When in AM or FM, this is less of a problem as these are much more wide banded signals than SSB signals.

The 2990 is really a 50 watt 10 meter amateur radio - but is geared to CBer's as it is easily modified to work in the CB frequency range and the so called "free band" between USA's CB (11 meters) and worldwide amateur 10 meter bands. Be careful transmitting this radio on CB frequencies as it violates FCC rules for power output there - and transmitting in the 28MHz - 29.7MHz requires a valid amateur radio license. Fifty watts on ham frequencies is tiny compared to the 1500 watts permitted. Why not get your ham license (here's how) and leave the "Chicken Band" (and all it entails) behind. You won't miss it!

I hope this helps and good luck!

Apr 12, 2012 | Cobra CB Radios

1 Answer

Need a service manual need to modify a MR f55 radio to transmit on 161.600 mhz can you help?


Hello,
You want to be able to transmit to the Coast Station on this frequency I assume. The Coast Guard monitors channel 16 at all times. This would be the primary channel in the United States. Your radio is VHF Marine Radio and has a built in frequency range of 156.050 MHz to 163.275 MHz. There is no need for a modification. This is a duplex frequency. What that means is you will transmit on one frequency and receive on another, while on channel 20. You will not need to transmit on 161.600. Turn your radio to channel 20. When you transmit, you will transmit on 157.000. And when the Port responds to you your radio will automatically receive their signal on 161.600. So if you are trying to figure out how to communicate with the port authorities then for that frequency turn your radio to channel 20 and you will be able to communicate with them.

Regards, Tony

Mar 31, 2011 | Cobra MR- F55 Base CB Radio

1 Answer

Cb anttenna


No you cannot, they are on different frequencies. This simply will NOT work. It may receive but will cook the output devices on Transmit die to the SWR being way off.

Mar 13, 2010 | Raytheon VHF 53 CB Radio

1 Answer

When I key the mic the radio blinks out and then comes back on


This can be due to one of several problems. Insufficient sized wires to the power source or a high SWR (standing wave ratio) between transmitter and antenna. The first is probably not a problem unless connected to an RF amplifier to boost output wattage. A high SWR however, is a more likely culprit. SWR is a ratio of power out of the transmitter to power that is reflected back from the antenna. Ideal theoretical ratio or "match" is 1:1. Real life is more like 1.1:1 (one point one to one). Most transmitters are perfectly happy with a match (or mismatch as the case may be) of 1.5:1 or even 2:1. Beyond this is asking for trouble. A mismatched antenna system can cause the failure of the output final transistors.

Matching or lowering the SWR of a radio to an antenna system requires that an SWR meter be installed between the antenna coax or cable and the transmitter's antenna connection point. There are two types of meters - dual needle and single needle. The dual type is more expensive, but easier to work. The meter must be capable of working on the frequency it is to used on. This means if it is marked as a 400 - 512 Mhz or UHF type, it will not be accurate on 27 Mhz or HF.

Once the meter has been installed, transmit at half power (or at least the amount needed by the meter) on the highest frequency and take readings. Do the same at the lowest and a middle frequency and record findings. Physically adjust the length of the antenna whip - by no more than 1/4" inch (for 27MHz CB frequencies) and check again. After a few tries, you should begin to see how shortening or lengthening the whip changes the SWR of the system. Once set correctly, the middle frequency will have the lowest SWR value while the lowest and highest frequencies will have equal higher SWR values. It would go something like this: Ch1 = 1.6:1 Ch 20 = 1.2:1 Ch40= 1.6:1 Of course, if Ch1 = 1.7:1 and Ch 40 = 1.6:1 that would be fine, too.

Double check everything once more at full power, so that you know the transmitter won't be damaged under full power conditions. Make any last adjustments and lock everything in place.

Aug 21, 2009 | CB Radios

1 Answer

It transmits off frequency is there a adjustment and also the frequency counter goes crazy at times


To add 10Khz to your transmit frequency:

FIXED/OFF/+10KHz SWITCH:
The left position puts the radio on
one of the three fixed channels that is selected by the channel switch
(6,19, or 21). This over-rides the channel selected by the 40 channel
knob. The right position adds 10KHz to whatever frequency you are ON.
In the middle, both features are OFF.

Otherwise, a radio tech would be able to retune the frequency inside the radio.

After adding 10KHz to your frequency, use the SWR control to check the SWR of your antenna.
Here's how:
SWR CAL CONTROL: Normally this switch is set to “PO”. Then,
during transmission, the meter indicates output power. To read SWR,
rotate this knob during transmission until the needle moves to the “SET”
point on the SWR scale. Then, while still transmitting, set the R.B./SWR
switch to SWR.

Ideal SWR is 1 but you'll want to be as near one as possible. An SWR of 1.6 or greater will make ineffective use of your antenna.
If in doubt, a radio tech has the required meters and tools to adjust the SWR/Tuning of your antenna.

May 10, 2009 | Galaxy Radios DX-73V 40-Channels Base CB...

1 Answer

Frequency


You would have to replace several components on the board(requires alot of soldering and the parts needed are a little hard to come by) in order to change the output frequency ranges. It is alot of work to do this and is probably not worth all the work, Best advice I can give you is to replace it with an AM one and sell it.

Hope this helps

Sep 11, 2008 | Cobra 29 LTD CB Radio

1 Answer

Af audio power amp


No!

On the YD1022 the pinout is: Corresponding pins on the TA7222 :

1,5 & 6 are ground 3, 7 & 8
2 is audio input 4
3 is feedback 6
4 grounds through a capacitor for frequency compensation 5
7 & 8 are audio output 9
9 & 10 are +12VDC VCC 1

The TA7222 also uses pin 10 for feedback & freq. comp. The circuits are very different & would need to be redesigned to interchange these chips.







Jul 16, 2008 | Cobra 25 LTD 40-Channels Base CB Radio

3 Answers

My radio off frequency


is this set AM and the recievers FM? if so there will be no way round the 'problem' BOB

Jan 09, 2007 | Cobra 19 DX IV CB Radio

Not finding what you are looking for?
Uniden PRO510XL 40-Channels Base CB Radio Logo

3,537 people viewed this question

Ask a Question

Usually answered in minutes!

Top Uniden CB Radios Experts

AnyMHz.com
AnyMHz.com

Level 2 Expert

489 Answers

Iron
Iron

Level 3 Expert

3018 Answers

smithkf4gyp

Level 1 Expert

29 Answers

Are you an Uniden CB Radio Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...