ARLA/CLUSTER: Radioamadores recebem em directo os sinais da sonda Rosetta

[João Costa > CT1FBF]

 Radio amateurs receive Rosetta signals

*James Miller G3RUH* reports reception of the Rosetta spacecraft signal at
a distance of 805 million km from Earth using the 20 metre dish at the
Bochum amateur radio facility



On the AMSAT Bulletin Board
<http://www.amsat.org/amsat-new/tools/maillist/>(AMSAT-BB) James
Miller G3RUH <http://www.jrmiller.demon.co.uk/> writes:












*Just a quick note about Rosetta X-band.  I checked it this morning from
Bochum.2014 Jan 21 [Tue] 0934 utcAZ    172°El    11°R    805 Million
kmCNR    25.5 dB(Hz)QRG  8421.786900 MHz at the spacecraftRosetta is about
14 dB weaker than Stereo A/B.The system at Bochum has a G/T approx 40
dB(1/K).*

Bertrand Pinel F5PL, located near Castelnaudary, France, 65km from
Toulouse, successfully tracked Rosetta on January 21, 2014 at 10:00 UT,
using a 3.5m dish antenna, see
http://blogs.esa.int/rosetta/2014/01/22/radio-amateur-diy-rosetta-tracking/

ESA Rosetta Blog
http://blogs.esa.int/rosetta/

ESA on Facebook
https://www.facebook.com/EuropeanSpaceAgency
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