Here on the east coast, we have have the Wallops Island Ionosounde. Audible on 160M, 80M, and 40M every couple of minutes.
Tim. On Wed, Feb 21, 2018 at 12:48 PM, 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. > > 73, Bill W4ZV > > P.S. to K4PI re salt water. NEC models show approx +10 dB and very low > angles for vertical polarization...no effect for horizontal. > _________________ > Topband Reflector Archives - http://www.contesting.com/_topband > _________________ Topband Reflector Archives - http://www.contesting.com/_topband