Hello Alfredo,
The MOST IMPORTANT things to know about propagation on 160M are:
1) Propagation on 160M has a strong peak for 30-45 minutes on the
DAYLIGHT side of sunrise and sunset. The peak lasts about one hour on
80M and 2 hours on 40M. I suspect that it is also present on 30M.
2) Propagation on 160M often acts very much like the sun peeking
through clouds drifting overhead.
3) Experienced DXpeditioners have learned that very strong propagation
on 160M usually happens on only one or two nights of a 2-week
expedition, so it is critical to be on the air through the hours of
darkness and for that 30-45 minutes of daylight on both sides. AA7JV
thought this was so important that he developed a transmitting diplexer
and RX antenna filters so that his trips could be simultaneously active
on both CW and FT8 during these hours every day.
73, Jim K9YC
On 11/16/2022 4:59 AM, alfeohjt@tin.it wrote:
Hi Guys, the propagation is very good on the high bands therefore the
low bands are almost dead.
We made some test last night on 160m FT8 and just few qso with very weak
signal.
We would like to make some test on 75 - 160m CW as per the following
schedule (GMT time, depending on conditions)
- Our sunset today at 04:30 - 05:30 PM (at our latitude the switch time
light to dark and vice versa is very short)
- Tonight at 09:00, 10:00, 11:00 PM
- Tomorrow morning at our sunrise 04:00 - 04:45 AM
We might test FT8 as well.
Based on the result we will plan actions for the next days.
Hoping to have you all in log.
Alfeo I1HJT
I.D.T. member TL8AA - TL8ZZ crew
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