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Discussion in 'CB Radio Modifications' started by hammer0630, Mar 9, 2012.
The variable power mod is the ticket for the linear running properly. If that amp will run at 1 watt; then set the radio output for that. Don't be hung up on the output numbers. No one will notice 40 watts less; they will notice a crappy sounding transmit - though.
As far as the swing mod goes; that will depend on how much modulation%/mic gain you use. Again, a crappy loud radio sound isn't always clear - and therefore - not better. Best get a radio check from a local operator that can give you a valid report. Clean sound is always better understood either locally or even distantly . . .
This is a contradiction of terms, if these amps were linear, there would be no need to run a 1/2 watt dead key.
Yes; you are right.
Should have used the word 'amp' instead.
But running that 'amp' according to the input specs will keep it as 'linear' as it will be possible to do.
Think it uses 8(?) mosfets if I recall.
You can get the parts at Rat Shack for less then a buck. cbtricks.com should have the information as well. That said the old school 148's are such nice radio's they don't need a swing kit. Do a search here of the forum, lots of threads about swing kits.
it is an 1 RM3 driving 8 RM3 mosfets (most people say the RM3 is a rebadged irf520)
I hear they're made by little people who live inside trees and they make cookies on the side.
They also do superwackpackIIs, that's why they have to hide in trees.
They prefer to be called Elves.
Dont install a swing kit in your 148, Other radios like a Galaxy, Connex ect take to swing kits better than the 148/Grants. A 148 is a really good radio that does not need a swing kit to be a good performer. I agree with Robb do a variable power mod or just pop the top and adjust VR10, lower the dead key and play around with it a little!
get out the golden screwdriver lol
and since modulation is what makes you loud, not watts, I let my amplifier create the watts I am looking for.
So in my opinion, and since most amplifiers sound better with lower drive Vs. higher drive, I keep my PEP into the amp on the lower side for best audio quality.
Just my opinion.