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The first ham radio operator in the space Owen Garriot – W5LFL Here under the received images from ISS in SSTV PD120 mode #gallery-1 { margin: auto; } #gallery-1 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-1 img { border: 2px solid #cfcfcf; } #gallery-1 .gallery-caption { margin-left: 0; } /* see gallery_shortcode() in wp-includes/media.php */ On June 14th APA radio meteor scatter station detected a persistent and widespread “cloud” of debris for about 75 minutes after the 20:30 UTC. In the video below is it possible to see how the backround noise rises highlighting the reflection of the timed GRAVES transmitter carrier. http://www.ik0vve.net/wp-content/uploads/2019/06/Nube06_19.mp4 In the next image is […] After about a month and a half from the beginning of the meteor scatter project with a satisfactory success, we wanted to make a small improvement to the reception system by doubling the antenna. From the beginning the antenna was a four element 1.5 lambda boom length with a gain of about 8.5 dbd. We […] It’s more than three years that I monitor VHF for meteor scatter signals thanks to the French GRAVES radar near Dijon. This is a bistatic radar that transmits a CW signal at 143.050. With a simple radio system is possible to receive the radar signal reflected by the meteors ionized plasma that these […] Questi giorni si avvicinerà alla Terra l’asteroide 2012 TC4 ad una distanza veramente minima per un oggetto spaziale, domani alle 7:42 ita il picco di massimo avvicinamento. Con quasi le stesse modalità del sistema meteor scatter sto provando a ricevere sulla frequenza del GRAVES l’eco dell’asteroide che transiterà a circa […] Grazie alla positiva esperienza avuta con le Perseidi della scorsa estate, da poco prima di Natale ho pensato di installare una postazione fissa che mi permettesse un monitoraggio pressocchè continuo degli eventi meteorici tramite la ricezione in VHF del segnale del radar GRAVES. Filtro in costruzione Dopo un primo periodo […] Suddenly today at about 10:20 UTC no more echoes from GRAVES transmitter have been received at my meteor receiver. A Christmas time maintenance? Shortly before a strange activity has been captured from my receiver some Hz upper the usual meteor frequency. […] In these last days I focused my free time to meteors radar by French GRAVES VHF Radar transmitter. The new page is here: Meteors Radar. On this page you can find a 3 minutes auto-refresh picture almost real time. Just under a statistics image of received meteors signals. At […] |
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