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A good day’s VHF
16 November 2012 | by It was nice to hear from Mark M0DEV following our exchange of WSPR signals on 144MHz. It turned out that I was the most distant WSPR signal that he’d heard on 144MHz at that point. We decided it would be fun to try a QSO and decided that since we both used JT65-HF regularly, we’d use that rather than the more usual variant for VHF/UHF JT65B.
Running 10W at each end, both into collinears, it was an easy QSO over a path of around 140km. Not massive DX of course, but very satisfying. Following a successful exchange of signals we then turned down our power as low as it would go – around 1W in my case and were still easy able to exchange signals. Mark calculated that given the conditions at the time, around 150mW would have probably done the trick. Sadly I can’t run that little power – at least not readily!
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