Fons Buitelaar (@pa4fb) profile picture

Ham Radio | Electronics | Micro-Controllers | Programming | SDR | Satellites | High Altitude Ballooning | ATV | Signal analysis | DIY | And more.....

Netherlands
Joined December 2017
Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)Photo by Fons Buitelaar (@pa4fb)
Replying to @pa4fb
During the Northbound pass of NOAA-19 I made this time lapse video. Original length was 15 minutes which was reduced to 30 seconds.
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First test of InmarScope v1.0.18 with the SDR++ server and an SDRplay Duo. The antenna is pointed at Inmarsat I3-F5 (54W). After tuning to the NCS channel at 1541.450 MHz, the LES channels are automatically detected when the “Auto-add” switch is enabled.
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AERO H+ 10500 with automatic tunning to AERO 8400 voice channels when active. Works very well!
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Decoding AERO L 600/1200 channels on Inmarsat I4A-F4.
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I tested the Radiosonde decoder plugin on SDR++ 1.2.1 using an M10 radiosonde launched from Murcia - Spain. The signal was quite weak due to the 121 km distance and lack of line of sight, yet the decoder was still able to track it partially. Thanks to @_dbdexter and @ryzerth 👍
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The DAB+ plugin for SDRpp 1.2.1 is working great! Many thanks to @williamyang98 and @ryzerth for all the work!👍
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First test with the PlutoSDR using tezuka_fw from F5OEO and SatDump-2.0.0-a5413af supporting the PlutoSDR CS8 IQ Mode. With the CS8 IQ Mode, a Samplerate of 13Msps is possible without PlutoSDR undeflow warnings! Absolute fantasic! @F5OEO @aang254
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@F5OEOEvariste Thanks for your great working tezuka_fw! 👍
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2025.04.19 | AQUA crop of the Rotterdam region and Zuid-Hollandse islands | 8160MHz | 14:05z | Max. EL 46 degrees | Decoding #SatDump | Automatic tracking #UltraTrack
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2025.04.17 | FY-3G | 7790MHz | 17:41z | Max. EL 60degrees | Decoding #SatDump | Auto tracking #UltraTrack
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1/3 This is a Time Lapse of FY-3E with auto tracking in process. 2024.11.18 | max EL 86.3 | AOS 16:30:57utc | LOS 16:46:29utc
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3/3 Image quality of FY3E MERSI-LL image is not optimal due to low writing speed of 4TB 5400rpm HDD. Next step will be recording with 1TB NVME m.2 SSD.
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Tracking is done with UltraTrack from @usa_satcom !
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2024-10-26 LRPT (137.900MHz) | RGB | 11:11z | SatDump software by @aang254
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2024-10-25 DX-APT received from the Netherlands | NOAA-18 (137.912MHz) | MCIR | 2 orbits 21:39z & 23:21z | SatDump software by @aang254
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Recently seen at Schiphol airport! 👀
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