[Ronja] 10mbps 1,500,000km simulated DX
Mark Robinson
mark.robinson at paradise.net.nz
Thu Nov 8 13:11:09 GMT 2007
hi everyone,
This article may be interesting:
> http://www.oerlikon.com/ecomaXL/index.php?site=SPACE_EN_press_releases_detail&udtx_id=5060
Tenerife, 7. November 2007 - On the Canary Islands last week, a team from
Oerlikon Space demonstrated the feasibility of a laser link across a distance
of 1.5 million kilometres for the first time ever. In the future, laser links
like this one will be able to transmit data across huge distances through the
universe far more rapidly and efficiently than is possible using conventional
radio links today.
To prove that data transmission across the vast distance of 1.5 million
kilometres is really feasible, the Oerlikon engineers had devised a special
experiment in which they set up a laser link between the islands of La Palma
and Tenerife. The transmission unit was modified in such a way that the
conditions on the 144-kilometre stretch between the islands exactly reflected
those that would prevail on a 1.5 million kilometre link through space. This
was achieved primarily by reducing the emission aperture of the laser to a
diameter of less than half a millimetre in order to weaken the light signal.
...
see also
http://science.slashdot.org/article.pl?sid=07/11/07/1559251&threshold=-1
--
all the best
Mark
09 Nov 1885 Volunteer forces make landings at Tamaki and St Helliers as part of
manoeuvres for an expected invasion by Russia.
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