On Sunday 21 October 2007, David J Taylor wrote: > Jan Hoevers wrote: > [] > > Seen from the earth' surface that leaves a large circular area of the > > sky - centered over the pole - where no sats fly. In tropical and > > temperate zones part of that circle is below the horizon, at latitudes > > of more than 55 deg the entire circle is above the horizon, and a > > (small) part of the "opposite side of the donut" becomes visible at > > the northern horizon (southern horizon if you're down under). > [] > > hope this helps a bit, > > Jan Hoevers > > Interesting you should mention that, Jan. I've recently written a program > to try and plot one's radio horizon by recording the strengths of GPS > satellite signals, and it can be downloaded here: > > http://www.david-taylor.myby.co.uk/software/GPShorizon.zip > > The file polar-plot.jpg I included in the Zip archive shows the sky > coverage gap you described rather well.
will try this out :) thanks! shame you don't have a linux version though. i have to move the gps to my test bench which has a windoze machine for references only. i am 100% linux-geared here including my personal workstation. however, from the looks of it and descriptions it will be well worth it :) > > Cheers, > David > -- > SatSignal software - quality software written to your requirements > Web: http://www.satsignal.eu > Email: [EMAIL PROTECTED] > > > _______________________________________________ > timekeepers mailing list > [email protected] > https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers > -- Chuck "...and the hordes of M$*ft users descended upon me in their anger, and asked 'Why do you not get the viruses or the BlueScreensOfDeath or insecure system troubles and slowness or pay through the nose for an OS as *we* do?!!', and I answered...'I use Linux'. " The Book of John, chapter 1, page 1, and end of book _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
