It's in the US, I'm situated in the Montebello area/East LA, It seems like some type of data, but I'd like to know where it's coming from/what it is. Here is an audio recording I took from SDR# when I was listening to it:Is this in the US? What location are you hearing it in?
151.5375 is not a valid frequency allocation in the US.
The closest on either side would be 151.535 or 151.5425.
You can look up non-federal frequencies in the FCC database
FCC General Menu Reports
License Search - Advanced License Search
or the FCC data here on RadioReference
Scroll down to Search FCC Licenses By State.
You are hearing the IFB feed from the news station which enables field reporters to hear on the air audio and messages for live reporting. News station are mostly in the 450-451 Mhz area.Interesting, Thanks. I can also hear things like Fox news around 10 seconds early in the 450MHz spectrum, I don't know how that could be either, I don't think things like wireless headphones are supposed to TX to that spectrum, so that's a bit strange.