[amsat-bb] Re: Tracking - End-stop Problem
erich.eichmann at t-online.de
Mon Feb 8 06:45:32 PST 2010
I sent you the following message off the list but my mail was returned by
the mail delivery system.
SatPC32 supports the 450° range of the G-5500 (to avoid a full turn of the
azimut rotor when the satellite passes your location in the North).
You can choose the 450° in the menu "Rotor Setup". To make the option
available the max. elevation must be set to 90° and the rotor turning point
must be set to "N" (for
73s, Erich, DK1TB
----- Original Message -----
From: "Clive Wallis" <amsat-bb at g3cwv.co.uk>
To: "amsat" <amsat-bb at amsat.org>
Sent: Monday, February 08, 2010 11:17 AM
Subject: [amsat-bb] Tracking - End-stop Problem
> A problem that I've had for many years is how to track when the
> satellite's azimuth crosses across the rotator's end-stop, ie. when the
> azimuth changes from 0 to 359 degrees.
> My rotator turns between 0 and 450 degrees, so it should be possible to
> use angles between 360 and 450 to overcome a sudden transition
> from 0 to 360 degrees.
> As the pass data is available within the tracking program, it should be
> feasible to deal with the problem in the program. Do any tracking
> programs include this feature?
> A possible solution would be to use a small PIC between the computer and
> tracker, which could modify the commanded azimuth.
> I'm using a Yaseu 5500, LVB tracker, Sat_Explorer tracking program and
> Any help, suggestions or comments would be most welcome.
> 73 Clive G3CWV
> Hitchin, North Hertfordshire, UK
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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