Opening on 28 MHz after Aurora - Wed 12th May 2021

Wednesday the 12th of May 2021 was an unusual day. The first half of the day seemed to be dead on 28 MHz with very little happening which was probably due to an aurora in progress. From about 18:00 UTC onwards, it sprung into life. This is what I heard on FT8 up until 18:30 UTC...

Once it was obvious that the signals were getting stronger, I moved over to monitoring for WSPR signals...

A total of 20 stations were spotted from the northern part of Europe. What was unusual was that the band just seemed to stay open up till midnight and then stayed open overnight.

What was also unusual for me was that I was hearing the SE of the UK which is about 650kms away for several hours. These are some weak QRSS signals I got a grab of...

What was unusual was just steady the signals were. Normally with short skip on 28 MHz, the signals are fading. QRSS signals come in and fade away. On the 12th, the QRSS signals from the UK just seemed to be there at a pretty consistent level for hours. They never got that strong as can be seen from the WSPR reports below but the QRSS signals never really faded out either.

UTC (y-m-d) TX txGrid RX rxGrid MHz W SNR    drift km
2021-05-12 20:48 G0MBA JO01 EI7GL IO51tu 28.126053 0.2 -25 0 645
2021-05-12 18:48 G0PKT JO01mt EI7GL IO51tu 28.126062 0.2 -23 0 647
2021-05-12 19:48 G0PKT JO01mt EI7GL IO51tu 28.126062 0.2 -28 0 647
2021-05-12 20:48 G0PKT JO01mt EI7GL IO51tu 28.126064 0.2 -21 0 647
2021-05-12 20:58 G0PKT JO01mt EI7GL IO51tu 28.126063 0.2 -23 0 647

This was the day of the season where the band seems to stayed open to Europe overnight.

A connection with the aurora event or just coincidence?