Largely based on the well known WSTJ-X, FT8 software, there is a new one called JS8CALL. FT8 sends brief 13 character messages in 15 second slots. JS8 extends this to send longer messages in one or more slots. Thus allowing a two way open chat. FT8 for 40m is based at 7074kHz USB, JS8 is higher at 7078kHz USB. This is so far what I have received:
Showing the FT8 mass of signals at 7074kHZ and a single solitary JS8 signal just above 7078kH - as received on the Hack Green web SDR. And this is a decode of signals received on my Elektor SDR receiver:
Thursday 28 February 2019
JS8 Call
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1 comment:
Hin Antony
Very intéressant. I know FT8 but I don't know JS8.
It has been some time since you have spoken to us about England and the problems we have encountered. What about Brexit? How did the English population react to this period of uncertainty?
I really like your articles on the microeconomics and politics of Europe.
73 QRO
Gilles F1BFU
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