Somewhere I still have an "OSCAR locator". That is why several locals came up with a computer program to run on a mainframe to calculate the elevation and compile a set of tables. MUCH easier!
Glen, K9STH Website: http://k9sth.com --- On Tue, 4/12/11, i8cvs <domenico.i8...@tin.it> wrote: > From: i8cvs <domenico.i8...@tin.it> > Subject: Re: [amsat-bb] Re: satellite average elevation > To: "Glen Zook" <gz...@yahoo.com>, "Amsat - BBs" <amsat-bb@amsat.org>, "Bob > Bruninga" <bruni...@usna.edu> > Date: Tuesday, April 12, 2011, 10:32 PM > ----- Original Message ----- > From: "Glen Zook" <gz...@yahoo.com> > To: <amsat-bb@amsat.org>; > "Bob Bruninga" <bruni...@usna.edu> > Sent: Tuesday, April 12, 2011 10:39 PM > Subject: [amsat-bb] Re: satellite average elevation > > Again, back in "those dayes" we did not have the luxury of > computer > simulation and from trial and error the majority of people > found that about > 30 degrees above the horizontal worked the best. That > is why the "olde > tymers" recommend 30 degrees. It worked very well and > we made many contacts > using the LEO satellites. > > Glen, K9STH > > Hi Glen, K9STH > > In those days of OSCAR-6 we did not have the luxury of a PC > but we used the > OSCARLOCATOR.By the way for best performance on OSCAR-6 > ,OSCAR-7 > and OSCAR-8 an elevation motor was required and the most > popular for > elevation was a KR-500 allowing manual elevation traking > and flipping when > necessary. > > A 30 degrees elevation for the antennas was seldom used > with OSCAR-6 ,7 and > 8 resulting in marginal performance. > > With the actual LEO satellites like VO-52 , AO-51 and FO-29 > the altitude is > much lower and according to Bob Bruniga demonstration a > fixed elevation of > 15 to 20 degrees seems to be a good compromise but > obviously using an > elevation motor is much better. > > 73" de > > i8CVS Domenico > > _______________________________________________ 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
