276km Reception of Beacon in Wales on 28 MHz

During a Sporadic-E opening on the 20th of May 2020, I came across GW7HDS/B beacon in the south of Wales on 28.2215 MHz.

This is a very unusual beacon for me as it is 276 kms away and would normally be too far away for tropo and too close for Sporadic-E. When I heard it first, I thought it must have been some exceptionally short Sporadic-E.

I noticed however that the signal was pretty constant. After a few hours, it was still there and didn't behave like Sporadic-E.

By accident, I also noticed that the BBC Radio 4 signal on 104.9 MHz from Haverfordwest on the west coast of Wales was a big signal here. Even though it is some 140 kms distant, I was able to listen to it using just my mobile phone and the headset lead as an antenna.

Later in the evening, the GW7HDS beacon had gone and coincidentally, so had the signal on 104.9 MHz.

I often hear stations on the west coast of Wales on 10m on FT8 but it's hard to read any meaning into signals that are there in bursts and are infrequent. Are they tropo? Aircraft scatter? Back scatter?

Tropo conditions on the higher VHF bands like 2-metres and 70-cms are pretty common but not so much on the lower bands like 10-metres. Was it a tropo signal on 28 MHz? Possibly but I still suspect it might have been backscatter for Sporadic-E.

With the beacon frequency stored safely in a memory channel on the radio, I'll have to look out for it again in the future.

Short Skip opening on 28 MHz - Sun 9th June 2019

Sunday the 9th of June 2019 was one of those days when 28 MHz could be called 'wide open'. There were very strong European stations on the band with openings as well to the Middle East as well as the USA.

The really unusual thing for me was the short skip.

For example, I heard these four beacons via Sporadic-E....

PI7ETE/B with its 300 milliwatt output power is an unusual one but not that rare. Likewise ON0RY/B with 5 watts to a vertical half-wave is unusual but at roughly 900 kms is reasonably regular.

It's when the skip shortens to 500 kms and I can actually hear GB3RAL/B that I know things are special. What was really unusual was that the skip went as short as 350 kms and I heard GW7HDS/B in Wales on 3 watts.

I have heard Wales via Sporadic-E before on 10 metres but it is really rare. It's one thing to decode some FT8 signal buried in the noise but when you can actually hear a decent sounding cw signal then things must be good.

As for the rest of the day, this is a map of the stations heard on 28 MHz...

There are some interesting ones in there. YI3WHR in Iraq and several others from the Middle East.
A ZD7 on St Helena in the South Atlantic. There were two openings to North America... one in the afternoon and one very late in the evening.

This is the European map in more detail...