I have heard this sound for months on 452.325 MHz. It sounds like a control channel, but of what? Does anybody know? (access the Archive.org page, then select 'wave' on the lower right-hand side): Mystery digital sound
Entergy (my electric company) has a "smart meter" within 25' of the antenna. I wonder if it's a data link from the meter?
That and smart meters do not transmit continuously.Likely Not - most of those are 902 MHz and 2.4 GHz
It's not DMR and it doesn't even sound like DMR.That shoulds like DMR. I got that same sound when I programmed a frequency that said it was conventional and was later updated to a DMR Frequency.
Sounds like a dmr control channel , Not simplex dmr ,
to hear the system correctly you need all the other site frequencies and then run LCN finder to trunk track ,
have you set the scanner to digital only mode for that entry?