There are many things that produce similar signals in this frequency range. Laser power supplies, RFID, NFC, etc. In my case I have a local signal that is just like what you posted, and it turns out to be related to the cable TV / Internet provider, it is some kind of security monitor that uses RF to tell if the cable has been accessed or spliced without permission. I found this out totally by accident when talking with one of the cable maintenance guys, and noticing the signal fluctuating as he was working on the pole near my house.
However I have detected a similar signal miles away from any inhabited structure / area also.
T!