Hi Clive, 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 North).
73s, Erich, DK1TB
----- Original Message ----- From: "Clive Wallis" amsat-bb@g3cwv.co.uk To: "amsat" amsat-bb@amsat.org Sent: Monday, February 08, 2010 11:17 AM Subject: [amsat-bb] Tracking - End-stop Problem
Hi,
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 WinXP.
Any help, suggestions or comments would be most welcome.
73 Clive G3CWV
Hitchin, North Hertfordshire, UK _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb