#rtl-sdr

hey so like way way WAY off topic but some of you may remember my satellite posts a bit back and i'm still doing that sort of thing because it keeps my brain occupied, i was testing an antenna that's basically an X shape made for UHF (200-400ish MHz) and i picked up.. whatever this is

it seemed to disappear after i recorded it, the whole tone burst was only about 3 more seconds but i only noticed it about half way through. this seems like something exceptionally old or just a beacon signal, since from what i know about data modulation this is both too short and too slow to be much of anything. its reminiscent of transit 5b5 almost, but definitely isn't. i'm FAIRLY certain it is a satellite because of the significant Doppler curve (esp visible by me chasing it with the tuner window) i received this around 10:33 AM in north america, ohio specifically. 4.2 kHz bandwidth, FM

throwing it on here as a hail mary because i've never seen anything even remotely similar before, will continue to look for it again

Skywave Linux v5 is Now on Debian Sid!

Enjoy shortwave radio and overseas broadcasts, no matter where you are. Skywave Linux brings the signals to you. Broadcasting, amateur radio, maritime, and military signals are available at your fingertips.

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For shortwave listening, weather satellite decoding, or airband monitoring, Skywave Linux is the system you want!

WHELP I don’t know why I expected October to go differently than the rest of this year but I’m still somehow shocked at how much I did NOT get to. My poor Apptober project may not have gotten the love it deserved this year, but sometimes that’s just how the raspberryPi crumbles.

RTL-SDR: Tinkering With Radio Waves

On the upside I did enjoy my brief dive into the research-hole of learning about Software Defined Radio. AdaFruit especially has some excellent resources that are very accessible to beginners:

Getting Started with RTL-SDR and SDR-Sharp and CubicSDR

Build a radio scanner from a RaspberryPi

I don’t know why tuning into radio stations using software is so much fun considering you can get a handheld radio scanner pretty much anywhere... but somehow it is.

And Now: Sleep

So that’s it, a happy little research project for this year’s Littlest Apptober.

３つのアプリケーションをしばらく使ってみましたがSDR++が一番使い易い感じがしました。FMのラジオ放送を聴いた程度ですが。 航空無線、船舶無線、極軌道衛星の電波を受信しているのはわかりましたが、「これがその電波なんだなぁ」ということがわかるだけで、その処理方法が現時点ではよくわからない。 もう少し勉強してから色々試します。

An A330 on short final, just about to flare. You can intercept its voice and data radio signals with a properly set up RTL-SDR! Voice on the VHF-Airband is an easy catch. So is ACARS data, whether in the old signal format or the new VDL Mode 2. Know what is going on. See the book "Airband Radio on the RTL-SDR" for tips, tricks, do's and dont's for using software defined radio to harvest aero signals en masse.