I just got some new Pi4B SBCs. What are the recommended SDR USB modules that fit and are best suited to feed?
I don't know if it's "recommended" or not, but I got one of these for using with a Pi4B: https://www.amazon.co.uk/gp/product/B07TZG3KMQ. That was nearly a year ago and it worked with the adsbx install scripts out-of-the-box, has worked flawlessly since, and I never did get around to mounting the aerial outside because it works well in a window facing the right direction (I have hills behind me in the other direction).
I'm using this one, with same results. https://shop.jetvision.de/epages/64807909.sf/en_GB/?ObjectPath=/Shops/64807909/Products/53199
The jetvision SDR doesn't perform well compard to the FA blue stick unless you add an external LNA. Also uses some very small impractical connector, sticks with SMA connectors are preferred by most people. Some stuff with some comments, if the link doesn't work or you can't get the product from there, just search it in a shop local to you. https://github.com/wiedehopf/adsb-wiki/wiki/adsb-receiver-shopping-list
I can't make comparisons, but seeing my stats, I'm not unhappy about the JetVision. Without LNA, only with a self made antenna (a simple 6.9mm stick of 4mm thick copper wire inside PVC tube) I'm seeing signals touching 0 dbfs, a range up to 230 km and over 300 messages per minute. That seems to me nothing to complain about for 24 euro's ;-)
