Author Archives: pa3weg

Due to an IP-address change the PA3WEG.NL server was unavailable for some time. This is now fixed and everything should be back to normal. The WebSDR was not affected.

Last month I QSYd the receiver back to the Delfi-C3 downlink passband. 2m and VLF are now available

Today Delfi-C3 (DO-64) is in orbit for one year. In this one year we collected many scientific data and had a lot of fun commanding the spacecraft. Radio amateurs have used the linear transponder to communicate with other radio amateurs. … Continue reading →

Today I solved the high samplerate sound card puzzle by doing a completely clean OS install and manual recompilation of almost all sound related modules in Linux. The result is 4 bands, of which 2 are 192kHz samplerate, one 96kHz … Continue reading →

Approximately 1.5 year ago, the Dutch childrens TV show “Klokhuis” filmed the integration and vibration testing of Delfi-C3. Today, they aired the show. View it here (in dutch)

The soundcards came in today. After some downtime to replace the buggy harddisk and a clean install of my favorite OS, the two new soundcards were installed to provide 192kHz sample rate. Unfortunately, I ran into trouble with the drivers. … Continue reading →

Today CAMUS school in Viry Châtillon, France, made a contact with ISS around 13:35 UTC in a 87 deg elevation pass of the ISS over france. This contact could be received over large parts of europe on 145.800Mhz. While busy … Continue reading →

Currently, astronauts on board of the International Space Station (ISS) are transmitting Slow Scan TV (SSTV) pictures to earth. Most pictures are taken by space tourist Charles Simonyi using the on-board VC-H1. I received some of those pictures and put … Continue reading →

Last Christmas, Wouter Jan PE4WJ, me and my girlfriend Joke participated in the local christmas fox hunting event. Wouter Jan put some pictures and a small report about this on his website here

Thanks to Delft University of Technology, I will soon have two high-samplerate 192kHz soundcards. They agreed to sponsor this project and plan to use the receivers in their educational programme to receive Delfi-C3. The cards have been ordered and should … Continue reading →