Reddit -> Beehaw until I decided I didn’t like older versions of Lemmy (though it seems most things I didn’t like are better now) -> kbin.social (died) -> kbin.run (died) -> fedia.

Japan-based backend software dev and small-scale farmer.

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Joined 1 year ago
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Cake day: August 14th, 2024

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  • I now have a random wire antenna ~16m long (though not straight and the very ends wind around the structure I’m using to hold it up which I’m sure is not ideal), a ~4m counterpoise-ish-thing, a 9:1 balun, and cable to the SDR.

    I’ve gotten wefax (though in negative and spotty, so still some figuring out to do). Still no IBP beacons at all, though.

    I have fldigi working to a degree using soundcard as input. No hits using a regex of the beacons’ callsigns (including the one here in Japan) on any frequency I’ve tried. Not sure why that is yet.



  • So far no luck, but I only seem to get flights when they are going to/from the nearest airport to places south of me; everyone else is going around. I’m not sure how far the range is meant to be (EDIT: 370km or so per wiki). I can very faintly see something on the frequency, but Dump1090 isn’t catching anything.

    I have some parts coming today to try a ~20m random wire antenna. I got 2x20m copper wire in case I need to do a counterpoise on the other side (which seems to be like 1/4 length (so 5m) of wire?).

    Edit: also apparently it’s not required in Japan, so I’m guessing that’s why nothing domestic at least has it. Maybe if I leave dump1090 running long enough, it might catch some international flight, but none seem to go that near me.