Message-ID: <3AC4EFE3.72439BF0@sitestar.net>
Date: Fri, 30 Mar 2001 15:43:15 -0500
From: "Rye Gewalt" <ryeg@sitestar.net>
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To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: <Tech> BPSK PLL, wheels
References: <8d.4763591.27f50ca5@aol.com>
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I couldn't agree with you more regarding re-inventing things.  I think that there
are a lot of roads that were investigated and abandon as dead ends years ago  ---
and with today's technology they can be very fruitful and interesting.  In some
respects this LF activity is like that.   But I still like my wheel idea.
Sometimes my sense of humor gets me into trouble -- I apologize but hope a few
got a chuckle or two out of it....

Rye

MarkusVester@aol.com wrote:

> Hi Rik, Jim, Rye and all,
>
> >  The error between input and
> >  output phases could be corrected either by increasing the VCO
> >  frequency until the output phase "catches up" with the input, or
> >  decreasing it until it "slows down" to match the input. The output
> >  phase could shift in either direction, although the end result would
> >  always be to match the input phase.
>
> Like in real life, it's sometimes a sad thing to have to decide one way or
> another. If that PLL could take both routes simultaneously, the result would
> be perfect soft BPSK again :-) . In the 30's, there was a scheme called
> "Chireix modulation" which added the power outputs of two phase-modulated
> class-C transmitters to achieve AM in an efficient way.
>
> > I am working on this round thing that can be used to reduce friction rather
> > than simply dragging things across the ground.....
>
> Me too, apparently... I hardly dare say it in public, but in my opinion,
> re-inventing basic stuff is not so stupid at all. Don't we learn a lot more
> by own thinking and fiddling than by just believing in the solutions the
> experts have come up with for us? Trying to catch a glimpse of tiny dots
> encircling Jupiter in a homemade cardbord-roll telescope may be more exciting
> and instructive than a great show of colourful deep-sky HST images on the
> web. Which of course is not bad, either...
>
> 73 de Markus, DF6NM