{"id":141,"date":"2013-10-07T20:03:10","date_gmt":"2013-10-07T19:03:10","guid":{"rendered":"http:\/\/www.eb3frn.net\/?p=141"},"modified":"2013-10-07T20:14:38","modified_gmt":"2013-10-07T19:14:38","slug":"perseids-shower-using-graves-radar","status":"publish","type":"post","link":"https:\/\/www.eb3frn.net\/?p=141","title":{"rendered":"Perseids shower using graves radar"},"content":{"rendered":"

The past agoust I was build a passive radar to detect the Perseids<\/a> meteor shwoer . The most easy way is locate a very away transmiter and try to se the echoes produces by the meteors ionizacion.<\/p>\n

\"Perseids<\/a>

Perseids meteor Graves radar<\/p><\/div>\n

To do the detector I used a rtlsdr <\/a>receiver tuned to the Graves <\/a>radar at 143.050 MHz, a ground planae VHF antenna and Baudline <\/a>to display the scatters. Putting all toghetther using this script:<\/p>\n

“rtl_fm -f143050000 -s 250000 -p90 -F -R | baudline -stdin -samplerate 250000 -channels 2 -quadrature -record”<\/p><\/blockquote>\n

I recommend decimate the input and to 32 or 64 to reduce the span and increase the resolution bandwith. Some nice pictures of more meteors:<\/p>\n\n\t\t