Re: [Amps] Pre-Distortion Linearizer

["Joe Giacobello, K2XX" <k2xx@swva.net>]

IIRC, back in the old days of SSB, it was recommended to run one's 
exciter at maximum output and swamp the excess drive with a resistive 
pad.  The reason was that the exciters obtained their maximum carrier 
and sideband suppression and minimum spurious products at their maximum 
output.  I don't think that condition has changed, but I doubt that many 
of us are using such a swamping pad these days for amps that require 
less than 100W drive.  How much would be gained toward the goal of 
reducing IMD and splatter if such a practice were adopted today?
73, Joe
K2XX

On 5/4/2013 3:11 PM, Roger (K8RI) wrote:
> On 5/3/2013 8:11 PM, Tom Thompson wrote:
> > As long as the transceiver manufacturers give us transceivers with poor
> > IMD, it does little good to get the IMD on the amplifier good, unless
> > you home brew your own transceiver.
> It seems to me that many of the newer transceivers have receiver
> sections that are getting pretty good.  If their less than 20 over and
> you hear splatter you can be pretty sure it's them and not your receiver.
>
> My old 756 Pro isn't that good.
>
> 73
>
> Roger (K8RI)
>
>
> >
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