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From: Chuck Simmons
Organization: You jest.
X-Mailer: Mozilla 4.61 [en] (X11; U; Linux 2.0.33 i586)
Subject: Re: antenna question
References: <90Gl9.email@example.com> <3D985E98.F59EE679@webaccess.net>
Date: Mon, 30 Sep 2002 14:49:57 GMT
NNTP-Posting-Date: Mon, 30 Sep 2002 07:49:57 PDT
> In article <3D985E98.F59EE679@webaccess.net>, Chuck Simmons wrote:
> >The.Central.Scrutinizer.firstname.lastname@example.org wrote:
> >> In article , EBG wrote:
> >> >We live in an era of lies or "borderline bullshit"....which, of course, is
> >> >the same thing.
> >> >Thank you FTC.
> >> I've also noticed that false advertising is completely permitted nowadays.
> >> I wonder how many fools were scammed by the "Miss Cleo" organization?
> >> The local cable company (TCI and now AT&T) has an all out campaign against
> >> satellite tv. Their latest suggest that you may have to cut 3' holes in trees
> >> to be able to pick up the signal.
> >This is not as ridiculous as you seem to think. Some of the emission
> >from warm objects is microwave and satellite systems have extremely low
> >noise receivers capable of "seeing" thermal noise. This may be less of a
> >problem with HDTV and digital systems but it is still there. It is
> >certainly a problem with NTSC TV broadcast by satellite transponders.
> It is ridiculous. You'd mount the dish somewhere else instead of cutting 3'
> holes in trees.
> I've seen dishes pick up the signal on the north side of an apartment complex
> with the dish mounted on the balcony aimed through the roof!
I have such a dish at my apartment. The thermal noise is occasionally
quite annoying. When I lived in CA, I had a large movable dish. The
satellite arc was just over the tree tops as viewed from the dish. There
was no place to move the dish because it was on the highest point of the
property. The satellite arc was not visible from my house at all. It was
quite noticeable that satellites where the satellite arc cleared the
trees better gave much better reception. For best results, it is a good
idea to avoid warm objects that the dish can "see." I suppose the K band
systems and the like have a better thermal situation. I haven't
calculated where peak emission is for typical warm outdoor objects. I
suspect it is above microwave because the night sky can be around 10K or
below as I recall and has an HF peak.
BTW, I get best reception at this apartment late at night after all of
the obstructions have cooled.
... The times have been,
That, when the brains were out,
the man would die. ... Macbeth
Chuck Simmons email@example.com
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