[ih] SATNET (seismic data, Norway, UK)

Vint Cerf vint at google.com
Fri Aug 14 13:53:14 PDT 2009


well not exactly. the seismic stuff had its own dedicated circuit. Bob  
Kahn successfully argued that we could provide higher speed service by  
sharing the satellite capacity between the seismic data and the  
internet data and splitting the costs. But the seismic data itself was  
not necessarily a driver of packet satellite as a technology.

v

On Aug 14, 2009, at 4:03 PM, Johnny RYAN wrote:

> Dear All,
>
> Thanks you for your responses on Carterfone. But if I may be so bold,
> one other...
>
>> From papers of Peter Kirsten and Robert Kahn, it looks like seismic
> data transfer was an important reason to pursue SATNET, presumably
> particularly so in the context of the Mansfield Amendment --- were
> there other important reasons?
>
> The sequence for SATNET as I understand it is
>
> ------------------
> Background events re seismic data....
> 1957 - 'Rainier', US first underground nuclear test, detected by
> seismic instruments across the globe
> 1963, Limited Test Ban Treaty, 116 nations commit to underground  
> testing
> 1970, US starts recieving seismic data from NORSAR at Kjeller, Norway
> (seismic data went by cable from Norway to UK and then by satellite to
> US).
> 1972, seismic data goes to US through Sweden by Satellite
>
> -------------------
> 1973, ARPANET connects by satellite to UCL and University of Hawaii
> 1975, SATNET initiated - US link to UK (British Post Office and UCL)
> using Intelisat IV
> 1977, Norweigan Defense Establishment link by satellite
>
> Does this sound right?
>
> Johnny
>
> --
> My Next Book... http://johnnyryan.wordpress.com/books/net- 
> history-2010/




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