In This Issue. The same board was used in the Cobra GTL. These chassis are remarkably stable after the clarifiers are opened and expanded. Although they do drift until warm, it's not much compared to the DX radios that have the same clarifier capabilities. The following will unlock and keep the standard clarifier range: 1.

Remove D58 2. The following instructions will expand the clarifier range after it is unlocked: 3. Jumper R 4. Jumper from R side to D51 side. The Cobra OGTL is the same as above including the following steps: Remove the blue and brown wires from the fine clarifier control.

Grant XL partial RX Alaignment

Add a 2K resistor from the empty end terminal of the fine clarifier potentiometer. Set both clarifier controls to 12 O'clock and adjust as above. The dual controls on the are easy to deal with for the fun range of the clarifier. All that's needed to drop 5 KHz or 10 KHz is to get close with the coarse and trim in with the fine control.

The single controls are more difficult but the schemes listed above make them fairly easy to tune at the center slot position. A dual binary encryption example can be added to most radios.

The only limiting factor is the space available in the front panel. Radios with the controls mounted flush to a circuit board behind them would take more work than it would be worth. These could be two separate controls Fine Coarse but one dual potentiometer would be best. The 2K resistor can be larger or smaller depending on the range you prefer from your fine control. Decrease the value to increase the fine range and increase the value to decrease the fine range.

Smoke And Mirrors?Disclaimer: CBTricks. While the CBTricks. Model Volume. Index By Model. CBTricks Home Page. Secret CB Main Index.

Radio Modifications

President Models. Adams Frequency Expansion. Adams Freq. Conversion and Clarifier Mod. Andrew J. AR Update Frequency Expansion. AR Tune-up. AR Tune-Up. AX Alignment. AX Tune-Up. AX-7 Tune-Up. Dwight D. George Frequency Chart. Grant "Home Channel Conversion". Grant New Slide Modification.

Grant Frequency Expansion. Grant Clarifier Mod. Grant Freq. Grant Super Ears Kit Install.Okay, I've got that off my chest, now let's look a little into the history of the Grant:. Uniden made it's name by making quality radios for Cobra back in the 70's, thus allowing Cobra to make their name in CB history.

They also made radios for other importers, and had a very successful line of "President" radios, named after 3 guesses, and the first two don't count US Presidents! When they decided to ditch the President line and come out on their own as Uniden, many of their popular President models followed. The Grant was one of them. I'm sure many of you have looked at the Copper Electronics catalogs, which pictured the Cobra and the Uniden Grant, side-by-side, and wondered:.

And for awhile this was true. Unfortunetely, Cobra decided to go with cheaper manufacturers, varying from one year to the next, which also varied their quality. Uniden has maintained their high quality standards throughout the years.

You've read the specs on one website or another so I won't jot them down here, and the radio has your usual standard features:. When I got back into CBing in the early 80's I found a vast wasteland. It served me well. From time-to-time I'll pick up another Grant and we'll use it for awhile and I've never regretted sticking to the "Brand". But one thing I'd like to say again: You can find a better made, better performing rig in this price class, as you will with the Uniden Grant-XL.

Okay, I've got that off my chest, now let's look a little into the history of the Grant: Uniden made it's name by making quality radios for Cobra back in the 70's, thus allowing Cobra to make their name in CB history. Where did all the CB Manufactuers go?

But one thing I'd like to say again: You can find a better made, better performing rig in this price class, as you will with the Uniden Grant-XL 'nuff said - Woody.Log in or Sign up. Find Trucking Jobs. Oct 2, 1. I have a Uniden Grant LT i want to get it all setup real nice following is a lost of mods ect i woudl like to have done at my local cb shop but i am questioning a few things.

Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided. There is no charge for this service, but standard message and data rates may apply. Oct 4, 2. Oct 4, 3. Oct 4, 4. Oct 5, 5. I have worked in 2 way radio since when I finshed 4 years of electronics school. Again not all but many of them. And the "MODS" they want to do are simply not needed many are not going to gain you anything a good amp could not do yet some mods are good.

Oct 5, 6. Carolina ThunderOct 5, Oct 6, 7. Don't wast your money doing any kind of receive mods other than a good tune. When you do mods to the receive,with the kits i have seen,you either end up with a receive that picks up massive amounts of noise or one that you cant hear anyone unless their within a few miles of you.

Im not shure what problems you found but the 7. I also added a channelguard filter it is very good at cutting down on out of channel stations and splatter. Last edited: Oct 6, Oct 6, 8.The same board was used in the Cobra GTL.

These chassis are remarkably stable after the clarifiers are opened and expanded. Although they do drift until warm, it's not much compared to the DX radios that have the same clarifier capabilities. The following instructions will expand the clarifier range after it is unlocked:. With a frequency counter connected to TP1 and clarifier control in the 12 O'clock position adjust the following:. Remove the blue and brown wires from the fine clarifier control.

Add a 2K resistor from the empty end terminal of the fine clarifier potentiometer. Set both clarifier controls to 12 O'clock and adjust as above. The dual controls on the are easy to deal with for the fun range of the clarifier. All that's needed to drop 5 KHz or 10 KHz is to get close with the coarse and trim in with the fine control. The single controls are more difficult but the schemes listed above make them fairly easy to tune at the center slot position.

A dual potentiometer can be added to most radios. The only limiting factor is the space available in the front panel. Radios with the controls mounted flush to a circuit board behind them would take more work than it would be worth.

These could be two separate controls Fine Coarse but one dual potentiometer would be best. The 2K resistor can be larger or smaller depending on the range you prefer from your fine control.

uniden grant xl tune

Save my name, email, and website in this browser for the next time I comment. The following will unlock and keep the standard clarifier range: 1. Remove D58 2. The following instructions will expand the clarifier range after it is unlocked: 3. Jumper R 4. Jumper from R side to D51 side. Decrease the value to increase the fine range and increase the value to decrease the fine range.

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uniden grant xl tune

Leave a Reply: Save my name, email, and website in this browser for the next time I comment.If you are a veteran of any war or conflict let me know at the time of contacting me please. I hope this does not offend anyone and if it does then that is sad to me. They deserve our honor and respect for keeping us free to be who we are. Shop Time. Add Testimonial. All Testimonial. You do not have to do anything but contact me to get the radio done. There is NO markup on the radio cost.

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I only get paid for my parts an labor. Especially with the S. Stinger amp option with the road devil power mic with the battery eliminator mod built in!!

When you purchase a radio from me I will tell you what antenna what coax cable and how to wire it and set up the antenna for the best experience. No bs no games but you must contact me in the first 30 days if you are not happy or the radio has an issue.

So that is it in a nutshell, I make it simple and easy for you to get a quality radio the first time and that will last you a long time as I go over them with a fine tooth comb and do very clean work. My bench is kept clean and I do not scratch up your radios.

I build them like they are my own radio. I am a 1 man shop and a person who works 6 days a week that does not smoke and do not drink any alcohol or do any illegal drugs. Thank you very much And I hope to Earn your business and keep it. Disclaimer: A license is required to operate an amateur 10 meter capable radio you the end user own with more then 4 watts of carrier power on AM or 12 watts on SSB or that has any additional frequency coverage outside of the allocated 40 channels "You" the end user are responsible for the legal operation of 'your' radio equipment and or any amplifier devices.

Snake Radio Customs will not be held responsible for anyone using the radio incorrectly or out of band. This disclaimer releases Snake Radio Customs of any said liability. Thank you. Home Home Site Map Testimonials.Author cannot verify these modifications to work.

All mods on this page are representing the last Grant XL pc board before being discontinued. Always check radio operation in all modes and settings after performing any modification. PLL Modifications. Information for image above. Locate pin 14 of the chip on the bottom of the circuit board.

uniden grant xl tune

Cut the trace for pin carefully. Solder a 4. Obtain 3 micro spst switches and find a suitable mounting area on the radio and install. Switch 2 requires wiring to pin 10 and the board ground. Switch 3 requires wiring to pin 9 across from 10 and to the chip side of the cut trace on pin Cut the Trace on pin 14 of PLL and place 4.

Next, solder the anode end of a 1N diode to pin 11 of PLL. Next, solder the cathode banded end of a 1N diode to pin Next, solder the remaining diodes as shown and wire them on the switch just like the diagram shows. And finally, you will have to put the wires on the switch. A5 to pin 10 A1 to pin B to pin 9. B3 to pin A to GND. Ground pin 16 using a SPST switch.

No cut to the PLL is necessary. Pulling pin 16 low will cause it to jump down 10Kc. This will not work on all channels. Clarifier Mods Slider. Some info may be repeating, but with some differences.

Different variations on the same operation- you choose which is best. Find R and jump it. Take this wire andsolder it to Ground. Then solder it to pin 3 of the mb ic. This should give you about 6khz of slide.

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Unlocking the Clarifier. You should see about 5 khz of slide. Find D52, R44 and R and remove them. Solder a jumper from where you removed R NOTE: Some radios have different colored wires on the clarifier control. The Tx will track exactly with the Rx. Make sure to retune again after radio has been on for many hours.

uniden grant xl tune