rtl-sdr.com

With dec and FIR filtering off, you should check the spectrum and see a single nice peak (assuming there are no other signals being received). If it's overloading from too much gain/signal, then you'll probably see multiple peaks with weird shapes. Also one more thing I forgot to mention, don't forg...

Are you trying to connect to the hotspot generated by the Pi, or have it connect to a hotspot generated by your phone?

Very nice! Have you managed to confirm DFing after adding those switches? No phase distortion?

First point is that the antennas you are using are way too small for 121 MHz. Coherent DFing can withstand quite a bit of tolerance in antenna element sizing, but you're currently using an 800 MHz antenna for 121 MHz, which is quite major. If you have them, use the long whips that came with the set ...

The software really depends what you want to use it for? The HackRF is mostly for hacking and experimenting, so GNU Radio.

Other than that, GQRX.

The loop will most likely work the best. A cheap Chinese loop is fine, but as you're in the UK look up Welbrook loops too. Obviously much higher cost, but really well built.

Nothing like that available for everyday man prices sadly. There are a few machine learning attempts on GitHub, but nothing really ready for actual usage that i've seen yet.

fresnoboy wrote: ↑

Sat Apr 03, 2021 5:07 pm

Any idea yet when the v2 hardware will ship? I am going to do an antenna upgrade in the next few months and was hoping to mount one at the same time.

It will still be a few months out unfortunately. Crowd supply page here: https://www.crowdsupply.com/krakenrf/krakensdr

For bandwidth just use the largest available 2.56 MSPS. Yes screenshots are very helpful to see what you're getting. If you like a map showing the geometry of your setup could help too. And do you have two TV Yagis in your setup now? Make sure that the cables are the same length and low loss. You mi...

KrakenSDR won't be designed for outdoor use, but you could enclosure it in your own waterproof box (probably needs a fan though). Kraken will draw about 1.5A, more if you're using the bias tees. I'm not sure how it will operate with such a long USB cable though, even if it's fibre. I'd guess that an...