On Fri, Jun 26, 2015 at 1:19 PM, shawn wilson <ag4ve...@gmail.com> wrote: > On Jun 22, 2015 6:14 PM, "William Herrin" <b...@herrin.us> wrote: >> Two-way satellite systems based on SV's in geostationary orbit (like >> the two you're considering) have high latency. 22,000 miles out, >> another 22,000 miles back and do it again for the return packet. > > Just a minor nitpick - that's 22,300 miles above the equator at sea level. > You're probably closer to 22,500 miles away from the bird (as could your > uplink). That's just rough math adding the tangent of 1500 miles from the > equator in my head (plus the tangent of the curve distance from that base > line and angle of the bird :) ).
Typically further than that because you're not only not at the same latitude as the bird, you're not at the same longitude either. If you want to nitpick. ;) -Bill -- William Herrin ................ her...@dirtside.com b...@herrin.us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
