[AMRadio] Ongoing Quest: Legal Limit AM Amp

[rbethman]

Darrell,

That is an understatement!

While I've only been at this since 1980, it didn't matter when you took 
an HT-32 or a DX-60 into a legal limit AMP.

You end up running about 20W carrier into the AMP.  The audio peaks 
takes the output of the amp up to the legal limit (CURRENT LIMIT), of 
1500W PEP.

If you take a 100W carrier rig, with 400W full modulated peaks and pump 
THAT into a legal limit AMP, you will be over driving the AMP, and 
splattering Lord only know HOW broad!

This topic keeps resurfacing, and it just doesn't get any attention paid 
to it.

It WAS simpler with the EARLIER rules, but with the new rules, it is as 
clear as stirred mud.

Bob - N0DGN

On 1/24/2012 10:41 AM, Darrell Brooks wrote:
> There seems to be a lack of understanding by many ( maybe most) guys running linear amplifiers about the process for tuning them up. They want to put full drive to them, tune for maximum output, and go to town. If you try to explain to them that it's necessary to over couple them in order to gain 6 dB of headroom they think you're crazy.
> I'm sick of the splatter. Trying to run a linear amplifier on am is a bad idea.
>
> Darrell, WA5VGO
>