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" <btippett@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.
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