looking for a mode-S ADS-B recorded signal

[Christophe Seguinot]

Dear all

I'm using GNURadio for my distance learning class an intend to 
demonstrate demodulating ASK with ADS-B signal. At present, they are 
only 3 planes 80 km away from my home. I was not able to find any 
recorded ADS-B signal on the internet.

Could someone provide me with a ADS-B signal to make an experiment using 
the GRC  "filesource" ?

Regards. Christophe