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GM7HUD > UIV32 22.02.08 04:48l 35 Lines 1266 Bytes #999 (0) @ EU
BID : 205043GM7HUD
Read: GUEST DL1DVE
Subj: Re: INET v RF
Path: DB0FHN<DB0MRW<DK0WUE<DB0RES<ON0AR<GB7CIP<GB7ESX
Sent: 080221/1854z 04753@GB7ESX.#31.GBR.EU $:205043GM7HUD [Witham, Esx]NNA V3.1
G0CJM wrote:-
> f a digi is successful it will go by sat to Goonhilly
> and be fed into the *pipe* then and only then will i rx your call
UK internet access does ******NOT****** go via Goonhilly. The propagation
delay would be too long. Internet traffic is routed out of the UK via
undersea cables.
eg, pinging nytimes.com (in New York) shows the round trip time to always
be around 120mS. (n.b. you cant ping nytimes.com, it drops the packets but
you can ping the router in front of the webservers, ge-1-1.a00.nycmny01.us.d
a.verio.net/129.250.30.113)
The shortest possible transit time for a packet to travel from any Earth
station to a geostationary satellite and back to earth is 234mS. This is
given from the speed of light and distance to a geostationary satellite of
35800kms.
So if the transit time alone is 234mS yet actual RTT values are 120mS then
we can draw one of two conclusions.
1) There is a time-machine between me and New York to enable approx 110mS
of transit delay to vanish.
2) Internet traffic is not routed via Goonhilly and/or satellites.
I know which one I believe.
Roger, or whatever your name is today, please check your facts. If you keep
repeating rubbish, people will not take anything you say seriously.
73 de Andy GM7HUD
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