ah, much better, thanks. using "96 x 1000" doesn't barf...

# ./example.py
Frequency range: 87.50 - 108.00 MHz
scanning @ 87.50 MHz
No radio stations found. The signal is too weak.
Switching off the radio.


I'd expect to see no signal, I'm at work and the building is very well screened, will try at home.