This website gives you the possibility to listen to amateur radio operators :
http://websdr.ewi.utwente.nl:8901/If you visit that website you will gonna see 3 bands and 3 radio spectrums.Every signal appears on the spectrum,digital or analog signal.
So...yesterday i was listening to some radio conversations and was sniffing at some digital transmissions.Suddenly a strange noise comes in,no digital or analog that i can identify.
While i was looking at the radio spectrum i just got amazed of what i have seen.I immediately contacted a friend on messenger ( amateur radio too ) and i asked him to tell me if he is seeing the same thing,and the answer was yes.
So this is what i have seen.
I don't know if someone likes to play jokes,and i hope nobody is behind this.
Take a look and comment please