156.105 NE WI DTMF noise?

[cheesehead]

I'm trying to find "noise" on a freq. of 156.105. It seems to be originating in the Northeast portion of WI. There is a 30 second duration of a DTMF tone followed by a second DTMF tone duration. I hear it a couple times a night and sometimes during the day. I would like to know if anybody else hears this. I never hear any voice.
Thanks

 

[djeplett]

I'll monitor it from New London.

Looking it up in the RR Database there are 4 listings:
Calumet County Fireground with PL186.2
Columbia County Fire Dispatch Input with PL114.8 (Output is 154.145, check to see if you hear it there, also.)
Marathon County Highways Truck to Truck with PL114.8
Vilas County DPW with DPL026

My guess is its a dispatch tone of some sort, but Columbia County is in the south central part of the state. I'll let you know if I hear anything.

Hmmm. I see Marinette County is also licensed for 625 mobiles on this frequency...
http://wireless2.fcc.gov/UlsApp/UlsSearch/license.jsp?licKey=2431718

 

[cheesehead]

I'ts possible a unit within Marinette County in generating the tones but I'd like to know if anybody hears it outside of Marinette County. Thanks

 

[djeplett]

I'm guessing you're in Marinette County then? That would rule out Columbia and maybe Marathon as they are probably too far away to have been heard that often.

I'll listen in and let you know if I hear anything, but I may be too far away also.