I finally got my #rtlsdr dongle set up, kinda... I was playing with it and my walkie-talkie, and with some odd adjustments, it works!
Two oddities:
The waterfall and spectrum look a bit strange. I'm used to the WebSDR at UTwente (you know the one), and it doesn't make sense compared to that.
I was testing the channel barriers between 20 and 21, and I caught what sounded like morse code on channel 20. I did not record it so I could not decode it...!