RPI3 - RFSniffer (no receiving) X PISCOPE (many wave noise)

[JRammos29]

After editing some lines in RFSniffer.cpp i can print some info like "breakpoints" and in dispite of the code enter the "while(1)" loop, "mySwitch.avaiable()" seems always return false. And I get the same problem with other 433Utils based scripts.

Meanwhile, when i run PISCOPE i get a lot of signals from pin GPIO 27 which corresponds with wiringPi #2 or the 13th pin on the board. It also happens with the Python based RF decoder rpi-rf.

I'm using Raspberry Pi 3 B with Ubuntu Mate 16.04.
I tried with a fresh Raspbian but got the same problems.

Someone can help?

Thanks in advance!