OTH & JS8

Whilst enjoying my studies of Machine Learning I had the radio on in the background. I was very interested to see some ‘patterns’ on the 40m band

Interesting patterns in the waterfall

Not right at this time, but earlier in the day my fellow ‘neighbour’ ham G7VRD told me these are OTH. What is that ? Well this is Over the Horizon Radar, where radio signals are based off the ionosphere and then measured. They have been around a while, as in the 1950s, but technology has ‘evolved’ and ‘new’ arrays are being built ! These patterns were throughout the 40m band most of the evening ! Whilst annoying if you wanted to use the band for its intended use, nevertheless provided some interesting reading on what OTH was and how it worked.

FT8 and JS8 Call

Whilst I was busy with Juypter Notebooks, and as I now have the antennas plugged in thought it interesting to monitor JS8. Its nearby digital mode of FT8 gets plenty of traffic, JS8 is very sparse, which seems a shame as it looks a good way to ‘chat’ via FT8 digital mode.

I sent out HB and ACK’s and it was clear there are people listening, but not many sending CQ, nethertheless it was an interesting evening and this somewhat ‘dubious’ amateur transmission was observed, whilst interesting am wondering the legitimiacy of it.

Covid Stats transmitted into JS8 Call (no call signs only a reference of the source material)

I enjoyed seeing JS8 Call in operation though and didnt interrupt my studies, so i could do a bit of both.

late into the night… that’s data science for you and having a day job

So i enjoyed my FT8 and Data Science, having worked thru the night and with work-work the next day headed for bed eventually at 4AM.. 🙂

Stay safe and keep well !

Al / 2E0FWE

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