Talk:Unknown 173
From Signal Identification Wiki
It sounds like its receiving telemetry from water meters, since it's periodical. 1250 and 1050 hz sine waves are being used here for FSKFrequency-Shift Keying modulation. --->Yalek W (talk)
I have the same thing in Maryland, USA, on 173.2500 MHzMegaHertz (MHz) 10^6 Hz. It is for sewage and water or something like that. - Vincent 15:18:35 UTC 08/11/2025
