Here in Florida in the evenings we get a fairly consistent opening to
Europe it begins about 1 hour BEFORE local Sunset (2215Z) , Peaks about
1/2 hour before Sunset and then all but dies out on most nights by 15min
after official sunset. Later around 0200Z things slowly build back up
till around local sunrise Europe. Last night during this opening I
actually was seeing more EU' stations as I was NA?
Our sunrise opening is more traditional sunrise +/- 15 minutes to Asia
and the Pacific Islands
Cant say what it was before since the last tme I was on 160 from Florida
before 2019/2020 season was back in 1985-1990 time frame
Dave NR1DX
On 12/16/2020 7:16 AM, Kees Nijdam wrote:
Nothing wrong with conditions. Yesterday afternoon I worked K9FD in
Hawaii and this morning the west coast and WL7SJ.
Good propagation to Japan also.
Kees, PE5T
Verzonden vanuit Mail voor Windows 10
Van: Roger Kennedy
Verzonden: woensdag 16 december 2020 13:12
Aan: topband@contesting.com
Onderwerp: Topband: 160m Band opening phenomena
Well Bob my own experience these days when working NA stations is that the
peak occurs at least 3 hours after Sunset and at least 3 hours before
Sunrise. (and that is obviously not a Tropical path)
Years ago there was definitely a peak both at their Sunset and our
Sunrise,
typically around 10dB . . . but I don't think I have noticed that for
around
a decade. As mentioned previously, signals seem to actually drop off
around
Sunrise (both ways)
I obviously have no idea what has brought about this change . . . just one
of the many mysteries of 160m Propagation !
Roger G3YRO
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