Talk:Unknown chirps
From Signal Identification Wiki
Sounds like Frequency Hopping Spread Spectrum (FHSS)
-SprinGfield- I have had the exact same MFSKMultiple Frequency Shift-Keying like sounding Signal at 499,89 MHzMegaHertz (MHz) 10^6 Hz and located the Source. It came from my Zyxel GS1900-10HP POE Switch even with no Ethernet Devices connected. After unplugging the Switch - the Signal disappeared instantly and came back after about 10 Seconds after plugging the switch back in. I will most likely remove that switch from my setup and try to figure out where the signal comes from exactly.
WRONG. This is most likely external interference from a nearby device since its right next to a clock frequency: 750 MHzMegaHertz (MHz) 10^6 Hz. --->Yalek W (talk)
