Copper Talk » Ask The Tech » Radio's Mobile » Archived Messages » Help uniden grant xl rf power 15 watts max ??? « Previous Next »

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Grumpy
Member
Username: Grumpy

Post Number: 94
Registered: 4-2005
Posted on Saturday, October 07, 2006 - 9:51 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

i had my uniden grant xl peaked and tuned by a cb shop where I live it keys 4 watts and swings 15 watts.
how can i get more out of it can i turn L 37 and L38 will this bring it up will the radio do more
thanks
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Unit199
Intermediate Member
Username: Unit199

Post Number: 366
Registered: 8-2003


Posted on Sunday, October 08, 2006 - 3:17 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

USUALLY 15 TO 18 WATTS IS ALL YOU WILL GET OUT OF THE RADIO WITHOUT DOING OTHER MODS TO IT. YOU HAVE TO REMEMBER, THAT IS NOT A 10 METER RIG AND THAT IS PRETTY GOOD OUTPUT FOR A CB RADIO. IF YOU WANT MORE THAN THAT, I WOULD SUGGEST PUTTING A LITTLE HELP IN LINE WITH IT. ANOTHER THING, NO ONE ON THE OTHER END WILL BE ABLE TO SEE A DIFFERENCE ON THEIR RECEIVE TO WARRANT TRYING TO SQUEEZE A FEW MORE WATTS OUT OF IT AND THE FINAL WILL NOT LAST VERY LONG IF YOU HAMMER IT ANY HARDER.

HARVE
UNIT199
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Grumpy
Member
Username: Grumpy

Post Number: 95
Registered: 4-2005
Posted on Sunday, October 08, 2006 - 10:18 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

ok thanks i guess i'm just new to the grant xl
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Bruce
Senior Member
Username: Bruce

Post Number: 4093
Registered: 9-2003
Posted on Sunday, October 08, 2006 - 11:22 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The fix is called a LINEAR ......

FCC rules limit how much a leagal cb final can put out
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1861
Advanced Member
Username: 1861

Post Number: 576
Registered: 2-2004


Posted on Sunday, October 08, 2006 - 12:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

THATS ABOUT WHAT MY OLD STYLE 148 DOES . JUST RIGHT WITH A LITTLE HELP WHEN NEEDED .
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Patzerozero
Senior Member
Username: Patzerozero

Post Number: 3255
Registered: 7-2004


Posted on Sunday, October 08, 2006 - 4:54 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

bruce....i'm surprised at you

199 is right, grumpy. more surgery is required-such as NPC-RC with volted final, & even with that, IF you were to see 20-22 watts PEP-real 12-13 RMS swing-nobody is gonna notice the difference. my XL in my mobile keys less then 1 watt, though i usually leave it at 2, & swings 15 PEP & i get get out just fine
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Hotwire
Senior Member
Username: Hotwire

Post Number: 1882
Registered: 1-2005


Posted on Tuesday, October 10, 2006 - 12:35 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Grumpy, Hey that Grant is smokin! If someone told ya different, DON'T BELIEVE THE HYPE! If you back that deadkey down and put a 2 or 4 pill amp on that bad boy, look out mudducks!

WHAT THE? Somebody has somehow found out Bruce's Copper password and is illegally pretending to be Bruce!
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Grumpy
Member
Username: Grumpy

Post Number: 96
Registered: 4-2005
Posted on Tuesday, October 10, 2006 - 12:37 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

ok thanks
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Navyrebel782003
Intermediate Member
Username: Navyrebel782003

Post Number: 281
Registered: 12-2004


Posted on Tuesday, October 10, 2006 - 12:52 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Pat, quit showing off...LOL.... seriously though Grumpy, listen what Patzerozero and the rest of the guys are saying, you dont want to push it too much or your radio will be like one I have, it's in the closet collecting dust because I had it hacked before I knew any better.

James
CEF#590
CVC#49
Va Beach
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Im4jc
Intermediate Member
Username: Im4jc

Post Number: 199
Registered: 11-2005


Posted on Saturday, October 14, 2006 - 3:04 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Weird...before I started messing with my Grant LT it did 21 PEP on a Bird with no mods or clipped limiter. Just took it out of the box, cranked up the AMC pot, set the carrier at 5 watts and there it was.
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Johnbrowning
Junior Member
Username: Johnbrowning

Post Number: 44
Registered: 9-2006
Posted on Friday, October 27, 2006 - 1:22 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I think that the 2SC1969 is officaly rated at 19watts but you get some that are high beta and really scream. Nothing wrong with 15 watts though. I have seen Grant XL's and Cobra 148's vary from arounf 15-24 watts peak on AM. It is no different from cars. Even though Corvettes role off the same line once in a while you get one that just has more HP then it should! Same thing with electronics. The only way around this type of variablity is to go through test each componet and replace any that are not putting out 100%. In this case it would not be worth the cost to do so as the pay off in the end would be minor.

I will also say that if your tech works on amature gear freq. and use's a scope,signal generator, atenuators etc...... then he is going for the most clean power across the band width he can get you not peak power. The same thing is true of modulation and audio. A true tech will give you the most he can with out your audio clipping excessively. A shop that only use's meters is not going to get you as quality of a sound.Sound quality is one of the most often over looked aspect of CB! According to Cobra their are 30 million CB's in use and I would venture a guess that at least 15 million of them sound bad due to poor mod's to try to get bigger sound.

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