17 Aug 2023

European Es season

It looks like the main Es season in the northern hemisphere is just about over but, as I remind people, Es can occur at any time. OK, the days when 10m or 6m may be open for hours may be over for this year, but there will still be times.

This is why FT8 can be so useful, sniffing out very brief openings that in the past would have gone unnoticed. Frequently, the 27 MHz CB band is busy, yet 10m is quiet. This suggests decent propagation, but a lack of activity. These days, there is little excuse. Just 15 seconds of FT8 transmission is all that is needed to prove a path is "open".

See https://www.tvcomm.co.uk/g7izu/radio-propagation-maps/europe-sporadic-e/

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