> I saw on this bb a site or note that shows the overall > average elevatation. As I remember it elevation is > surprisingly low for most passes. Where can I find it?
I have a sketch on my web page: http://aprs.org/rotator1.html It shows that 70% of the time LEO satellites are below 12 degrees. The good news is that for the 30% of the time they are above say 12 degrees, they are 6 dB stronger. You can visualize this anytime by recognizing that the radius of the earth is about 4000 miles. And the radius of a LEO satellite is about 4400 miles. So swing an arc on a sheet of paper (the earths surface), and then swing another one only 10% above it (the LEO satellite) and then draw the tangent through your station. It is amazing to see how far away the horizon is and how much time a satellite is way out there... Bob, WB4APR _______________________________________________ Sent via [email protected]. 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
