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Pieter Ibelings

@ibelings • 18,259 subscribers

Physicist, N4IP, Antennas, Space Systems, SDR, RF, RADAR , Phased Arrays, Satellites, PCB Design, AI - Build, baby, build! 🇺🇸🇪🇸

Shorts

New display for my ADS-B tracker: azimuth/elevation instead of a map. I wanted one display I could reuse across the satellite tracker, spherical waterfall, GNSS monitor, and passive radar apps. With a scanning receive array, passive radar returns come in as az/el, so this gives me a way to match returns to aircraft. Multi-site passive obs solve straight to lat/lon, which is what the map is for. Pluto SDR on an indoor antenna, so signals are weak, but that's real traffic. Runs on iPad too, with the Pluto over USB. Nice feature to be able to apply all my waterfall colormaps to flight level, speed, RSSI or range.

New display for my ADS-B tracker: azimuth/elevation instead of a map. I wanted one display I could reuse across the satellite tracker, spherical waterfall, GNSS monitor, and passive radar apps. With a scanning receive array, passive radar returns come in as az/el, so this gives me a way to match returns to aircraft. Multi-site passive obs solve straight to lat/lon, which is what the map is for. Pluto SDR on an indoor antenna, so signals are weak, but that's real traffic. Runs on iPad too, with the Pluto over USB. Nice feature to be able to apply all my waterfall colormaps to flight level, speed, RSSI or range.

15,671 Aufrufe

And this is how you open the X/Ku band version of the Black Widow "umbrella" dish from MTI.

And this is how you open the X/Ku band version of the Black Widow "umbrella" dish from MTI.

20,130 Aufrufe

Testing the E-field dipole for 2-60 MHz. The signals are really strong with sharp nulls. The new board is powered through the coax. #hamradio #FT8 #Antennas

Testing the E-field dipole for 2-60 MHz. The signals are really strong with sharp nulls. The new board is powered through the coax. #hamradio #FT8 #Antennas

17,795 Aufrufe

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The 2x2 phased array is tracking satellites! I am running some tests on LEO satellites before I go full electronic beam-steering. #AMSAT #N4IP #SO50 #RS44 @RFSPACE

The 2x2 phased array is tracking satellites! I am running some tests on LEO satellites before I go full electronic beam-steering. #AMSAT #N4IP #SO50 #RS44 @RFSPACE

Pieter Ibelings

150,735 Aufrufe • vor 2 Jahren

The satcom amplifier is doing 250W at 432 MHz with modified LPF. Next step to see if 2x2 phased array can handle the power. #EME

The satcom amplifier is doing 250W at 432 MHz with modified LPF. Next step to see if 2x2 phased array can handle the power. #EME

Pieter Ibelings

14,365 Aufrufe • vor 2 Jahren

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