Got an SDR server running on the pi, didn't realise it was as simple as using the preinstalled rtl_tcp which came with the rtl_sdr utility. Connected using SDR# because I have been having troubles getting gqrx running (my preferred client), and it seems to work...but it's very intermittent.
Quick introduction to history of #GPS and how it improved accuracy over time (by Scott Manley). Ever wondered about terms L1,L2,L5, selective availability, ionospheric model, #DGPS, #WAAS, #SBAS, #EGNOS, and how it all works? Also #GNSS#SDR#FOSS project. https://www.youtube.com/watch?v=qJ7ZAUjsycY - comment section has interesting tidbits too.
Welp, my RTL #SDR just shit the bed. Time to get another one next check. Hopefully the new version sucks a little bit less than this silver one. Time to dedicate a PC just for radio usage.
Im testing out using an #airspy mini #SDR vs the #RTLSDR v3 on my ADSB system.
I'm all that hard core on #adsb but its nice to corollate the #ACARS testing I do with ADSB data.
As usual with aircraft data, it needs to soak for a week before you can really make any conclusions.
Was a bit surprised to see this Osprey V22 fly past on the map.
Having fun with my new Raspberry Pi 4 and a software-defined radio.
I know now which cars my neighbours drive and what their tyre pressures are, I know that their house burglar alarm is working, and I can see the depth of oil they have in their domestic oil tank!
Super interesting video on bridging Quinetic switches to #mqtt
The most interesting part was him going through the reverse engineering process of radio signals (with #sdr); decoding the responses and all in a fairly accessible manner.
@ekuber Working on #FutureSDR (a #sdr / #dsp crate), I also tried to be clever but the #rust#compiler always beat me. Even explicitly using core::simd slowed down the program because the compiler found better optimization.
The trick is indeed to use iterators.
Yet the conclusion varies from architecture to another has the optimising parts of the compiler are of different maturity...
gamutRF - very cool orchestrated RF speed scanner and collector. Scales with any number of SDR's and x86 or ARM devices, together comprising a compact network.
How fast? 3x Pi's and 3x USRPs will sweep 6GHz in 7 seconds.
Includes spectrogram output tool and a pipeline for translating raw recordings into gnuradio format. It sports two little APIs, one for scanner updates, the other for scanning control:
Ha! First #radiosonde decode and apparently for this one I have the best position... still decoding while this thing is on the ground... (Forest Service Road... Fillmore, California) #hamradio#SDR#rtlsdr#wx
Going to have to sell some of my ham radio equipment (Do I really need six SDRs?) So if anyone is interested, I'll be offering equipment here for a lower price than what I would need to sell it for on eBay.
I don't know where to start. I started out in the electric utility industry then moved onto cyber security research. Currently I'm responsible for product security for a smart building company.
Another day has arrived so let’s have our morning #KoffeeWithKyle chat and discuss our plans for the day. Let me know what yours are!
Today is the same mental stress on me as usual. After that still on the job hunt. I’m so hoping that one of these catch and I can get something that works out better.
As for me, I’ll try to do the double slit experiment on the 23 cm #HamRadio band using an old Covid barrier wrapped in aluminum foil. The idea is to demonstrate interference, edge diffraction, and multi path propagation to my students. No idea whether this will work in our lab/classrooom with the el cheapo RTL #SDR receivers and the #HackRFOne I have. I shall #FAFO.