rtl-sdr.com

Then it's possibly a hardware fault. Contact NooElec about a replacement.

All RTL-SDRs regardless of the brand will work the same in GNU Radio. You just need the RTL-SDR source from gr-osmosdr.

If you're just starting out, then it's best to start with a program with a GUI like GQRX or CubicSDR.

If you want to persist with the command line, then there is a good rtl_fm guide here http://kmkeen.com/rtl-demod-guide/

Well we're going to need a bit more information. What software are you using? What device? What do you mean by "can't connect to audio"?

I'm afraid I just don't know sorry. I've tried it on many devices but never one of those.

So the new code is being worked on now, and that will be quite a bit more advanced, but also fully documented. For now this is a brief overview of the current code: rtl_daq: Yes this takes a chunk of data from the RTL-SDRs and buffers it sync: Synchronizes the samples based on the USB delay determin...

There seems to be a bug with the latest web code where the checkbox unchecks if you use that button. Just enable them manually using the checkboxes and the Update button for now.

Very nice! Going to order some to test out. Dipoles definitely do work best, but it can be hard to use them on a roof of a car while in motion for example. But for a fixed site this will be perfect. With the coax cables, just try to make sure that they are as equal length as possible. I would defini...

Looks like you're getting good signals. The black bars look like an audio issue, perhaps the Pi is dropping audio samples? The entirely black images, no audio got through to the decoder. I'd say that something is probably wrong in the setup of your software.

HackRF, LimeSDR, PlutoSDR can all do other 10 MHz.