----- Original Message -----
From: Vic Rosenthal <rakefet@rakefet.com>
To: Steve Thompson <g8gsq@qsl.net>
Cc: <amps@contesting.com>
Sent: 16 November 2002 17:14
Subject: Re: [Amps] LP filter effects
> Steve Thompson wrote:
> >
> > Assuming the power meter is between the LPF and antenna, it's difficult
to
> > see how the LPF could be increasing the harmonic level. Another possible
> > cause is that your meter has poor directivity and heightened sensitivity
to
> > harmonics. I'd say that's much more likely.
>
> I assumed he had the meter before the LPF. That's the best place for it,
since
> the diodes in the meter may generate harmonic energy themselves.
I think they don't - I failed to find measurable harmonics when I tried
looking, and Peter Chadwick found the same. I think he tested at higher
power than the 800W I had.
Steve
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