I've been driving around with my BCD-396T in Close Call mode just to see what comes up. While I was driving around the intersection of De Anza and 280 in Cupertino, I got a CC hit on 452.175. It comes up as a digital signal. And after I disabled the tone search, I still couldn't get the signal to decode on my 396. So I safely assume that the digital encoding isn't P-25.
I was hoping someone more familiar with the sounds of digital data may be able to tell me what sort of mdulation it is. It is bursty, like voice. It doesn't sound like a control channel, (too many breaks in transmission). And it doesn't sound like telemetry (too random in length).
I went to the FCC database:
RadioReference.com - Scanner Frequencies and Radio Frequency Reference Database
There *is* an entry in Santa Clara County, and in Cupertino:
FCC Callsign WPVT344 Details
..but the designator doesn't show digital. 20K0F3E.
Anyway, if anyone has a clue, I'd be interested in hearing it...
I was hoping someone more familiar with the sounds of digital data may be able to tell me what sort of mdulation it is. It is bursty, like voice. It doesn't sound like a control channel, (too many breaks in transmission). And it doesn't sound like telemetry (too random in length).
I went to the FCC database:
RadioReference.com - Scanner Frequencies and Radio Frequency Reference Database
There *is* an entry in Santa Clara County, and in Cupertino:
FCC Callsign WPVT344 Details
..but the designator doesn't show digital. 20K0F3E.
Anyway, if anyone has a clue, I'd be interested in hearing it...