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PostPosted: Sat Apr 19, 2008 9:44 am 
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Joined: Sun Aug 13, 2006 12:29 pm
Posts: 663
Location: Goosnargh, north of Preston, UK
Using a dedicated radio beacon, the Belgium radio-meteor observers have made a simultaneous observation of the same meteor from six locations. The images show the spectrum of the received audio signal. The transmitter transmits an unmodulated signal and the displacement of the received signal, in the vertical axis, is due to the Doppler shift resulting from the movement of the reflecting surface.

The technical details of the observation are shown below.

Date: 2008 04 16
Time: 08:12:20 UT

TARGET TRANSMITTER
VVS Beacon
Location: Astrolab Iris, Ypres, Belgium
Latitude: 50.817 N
Longitude: 2.917 E
Frequency: 49990 kHz
Power: 50 W
Modulation: CW (pure carrier)
Polarization: circular
Direction: 'upward' beaming

OBSERVER 1
Observers: Lucas Pellens
Location: Neerpelt
Latitude: 51.217 N
Longitude: 5.417 E
http://www.flickr.com/photos/radiofireballs/2423961876/

OBSERVER 2
Observer: Pierre Ernotte
Location: Ottignies
Latitude: 50.667 N
Longitude: 4.567 E
http://www.flickr.com/photos/radiofireballs/2423148657/

OBSERVER 3
Observer: Felix Verbelen
Location: Kampenhout
Latitude: 50.951 N
Longitude: 4.594 E
http://www.flickr.com/photos/radiofireballs/2423148321/

OBSERVER 4
Observer: Roger Segers
Location: Puurs
Latitude: 51.083 N
Longitude: 4.283 E
http://www.flickr.com/photos/radiofireballs/2423148227/

OBSERVER 5
Observer: Willy Camps
Location: Tessenderlo
Latitude: 51.081 N
Longitude: 5.092 E
http://www.flickr.com/photos/radiofireballs/2423148057/

OBSERVER 6
Observer: Gaspard De Wilde
Location: Dessel
Latitude: 51.242 N
Longitude: 5.093 E
http://www.flickr.com/photos/radiofireballs/2423960648/

_________________
David Entwistle


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