[TenTec] MX-P50M Amp Harmonics and IMD

Jim Brown k9yc at audiosystemsgroup.com
Sat Mar 19 17:25:19 EDT 2016


Hi Reed,

Yes, this amp looks quite reasonable, especially for use at the 50W 
level. The concern would be with others that lack proper filtering at 
the output. OTOH, I'd like the IM to be better if it were in the kW 
class. :)

73, Jim K9YC

73, On Sat,3/19/2016 1:52 PM, Reed wrote:
> <Don't have a spectrum analyzer? That's no excuse -- if there are
> harmonics or spurs, YOU are in violation.>
>
> http://gm4slv-geek.blogspot.co.uk/2015/03/mx-p50m-amplifier-for-ft817.html 
>
>
> Looks pretty clean to me!
>
> There are several 100 watt transceivers that are/were sold that 
> should, in my opinion,  be taken off the market.  None was made in the 
> U.S.!  Manufactures have done a very good job on improving receivers, 
> but not much has been done to improve the noise from transmitters.  
> Throw that into a 1500 watt amp & you are adjusting knobs on the 
> receiver to filter out the noise. Manufacture a clean transmitter and 
> we wouldn't need some of the filters on our receivers.
>
> 73,
> Reed  W4JZ
>
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