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Re: Newbie questions...



if you find a cheap tv rotator that allows you to put a pole through the
rotator, you have your self an elevation controll :).

thats what ive done and the lot only cost me about £20 :)

Speak to you later.
Scott Elliott
Scott@pieh0.co.uk
2E1FJB / M1SJE
----- Original Message -----
From: "Bob Bruninga" <bruninga@usna.edu>
To: "Steve Olney" <ollaneg@zeta.org.au>
Cc: <amsat-bb@AMSAT.Org>
Sent: Wednesday, March 13, 2002 2:51 PM
Subject: Re: [amsat-bb] Newbie questions...


> On Wed, 13 Mar 2002, Steve Olney wrote:
>
> > thanks to those who replied to my questions.  If I got the information
> > right, there are currently no sats which can be accessed by simple
> > equipment (e.g., fixed turnstiles).
>
> I'm not sure where you got that information, but it is not completely
> true.  I copy all of the following satellites using only a simple 6" whip
> (for UHF) and 19.5" whip (for VHF) over a groundplane on my roof:
>
>  ISS   above about 3 deg   6 passes a day
>  PCsat above about 10 deg  5 passes a day
>  UO-14 above about 10 deg  5 passes a day
>  AO-27 above about 15 deg  2 passes a day (daylight only)
>  UO-22 above about 20 deg  4 passes a day
>  NO-45 above about 30 deg  3 passes a day
>
> That averages to almost one satellite per hour that anyone can hear.
>
> > I guess it has gone the way of all such pursuits.  In the beginning it
> > is simple and accessible to all, but the desire for a higher level of
> > sophistication results in more complicated systems being required which
> > the "old hands" take in their stride, but leaves the newcomer with a
> > higher entry level hurdle to overcome.
>
> More antennas, of course, helps.  But it is really very easy... If you put
> a 3 element VHF and 5 or 6 element UHF array on a cheap $64 radio shack
> rotator canted up about 10 degrees, then you will get 90% horizon to
> horizon coverage of all of these birds.  You can even fully automate your
> station by running APRStk (a DOS program) which will drive the rotator via
> 2 bits on the parallel port.
>
> de WB4APR@amsat.org, Bob
>
> PCsat WEB  page     http://www.ew.usna.edu/~bruninga/pcsat.html
> ISS-APRS FAQ:       http://www.ew.usna.edu/~bruninga/iss-faq.html
> Rotator Control     http://www.ew.usna.edu/~bruninga/rotator1.html
> APRS SATELLITES     http://www.ew.usna.edu/~bruninga/astars.html
>
> ----
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