Showing posts with label K0TPP. Show all posts
Showing posts with label K0TPP. Show all posts

Monday, November 11, 2019

Opening on 28 MHz to North America - Mon 11th Nov 2019


Monday the 11th of November 2019 was a pretty quiet day on 28 MHz for the most part. Other than a handful of European stations, the best DX to the south on FT8 was ZD7MY on St.Helena. The three exceptional signals however were WU1ITU, K0TPP and KC4QX in the USA.

On the lower bands like 18 MHz, 21 MHz or even 24 MHz, it's no big deal to hear an East-West signal outside of the Sporadic-E season. On 28 MHz and at the bottom of the sunspot cycle, it is.

When the solar flux is very low at the bottom of the sunspot cycle, propagation on 28 MHz via the F2 layer in the ionosphere is usually via North-South paths. As a result, hearing South Africa or South America from Europe on 28 MHz at the moment is nice but not exceptional. Hearing North America is unusual though.

I got just two FT8 decodes today from K0TPP in Missouri. He was 6,267 kms from here which is more than one F2 hop so perhaps there was some Sporadic-E helping to extend the path at one end or the other?

WU1ITU by contrast was much stronger and was at least +14dB here. That's a kind of level where a CW or SSB contact should be easily possible. It was a bit strange that these were the only two US stations that I heard.

KC4QX in Florida was heard much later at 18:43 UTC, about two hours after local sunset. Looking at the PSK Reporter website, it seems as if I was the only one in Europe in Europe to hear him.

Some of the my FT8 decodes are shown below. As you can see, WU1ITU was working Greece, France, Denmark and Spain.

103015 -15 -0.3  862 ~  CQ MM3NRX IO86
113300 -12 -0.5 1366 ~  CQ RA2FL KO04
121145 -12 -0.0  976 ~  CQ IZ2MHO JN45
151515 -11 -0.2  664 ~  WB2PYN K0TPP -03
151545 -10 -0.2  664 ~  WB2PYN K0TPP RR73