Re: Residential VSAT experiences?

[William Herrin <bill () herrin us>]

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/>