nanog mailing list archives
Re: Residential VSAT experiences?
From: William Herrin <bill () herrin us>
Date: Fri, 26 Jun 2015 13:25:57 -0400
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/>
Current thread:
- Residential VSAT experiences? Nicholas Oas (Jun 22)
- Re: Residential VSAT experiences? William Herrin (Jun 22)
- Re: Residential VSAT experiences? Fred Baker (fred) (Jun 22)
- Re: Residential VSAT experiences? shawn wilson (Jun 26)
- Re: Residential VSAT experiences? William Herrin (Jun 26)
- Re: Residential VSAT experiences? Gary Buhrmaster (Jun 26)
- Re: Residential VSAT experiences? William Herrin (Jun 22)
- Re: Residential VSAT experiences? Mike Lyon (Jun 22)
- Re: Residential VSAT experiences? Dovid Bender (Jun 22)
- Re: Residential VSAT experiences? Mike Lyon (Jun 22)
- Re: Residential VSAT experiences? Hugo Slabbert (Jun 22)
- Re: Residential VSAT experiences? Mike Hale (Jun 22)
- Re: Residential VSAT experiences? Dovid Bender (Jun 22)
- Re: Residential VSAT experiences? Tim Franklin (Jun 23)
- Re: Residential VSAT experiences? Rafael Possamai (Jun 23)
- Re: Residential VSAT experiences? William Herrin (Jun 23)