Residential VSAT experiences?

William Herrin bill at herrin.us
Fri Jun 26 17:25:57 UTC 2015


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



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