Sounds like our former secretary's cell phone. When she placed it next to her computer speakers, we could hear it faintly. Took us a long time to figure that one out!
73, Mike www.w0btu.com On Feb 21, 2018 11:48 AM, "Bill Tippett" <btipp...@alum.mit.edu> wrote: Does anyone know the source of periodic wideband buzzes that sound like this: buzzz..buzzz..buzzz..buzzz (i.e. 4X then pause) buz..buz..buz (3X ~10 dB down). I believe this may be some sort of ionospheric sounder but I've heard this for decades, including when I was in Colorado. Hopefully someone knows what's generating this. _________________ Topband Reflector Archives - http://www.contesting.com/_topband
