On Fri, Jun 26, 2015 at 1:19 PM, shawn wilson <ag4ve.us@gmail.com> wrote:
On Jun 22, 2015 6:14 PM, "William Herrin" <bill@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 ................ herrin@dirtside.com bill@herrin.us Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>