The last two nights (around 2300 UTC) I have heard some kind of multi-tone digital mode around 180KHz. Lengths of tones varies widely, with multi-second pauses at times. Loud in southwestern NY state. Anybody know what this is? I'm hearing it right now but I think it stopped around this time yesterday so it may stop soon.
Edit: Still receiving it as of 00:00 UTC 3/12/24