Jim, your recommendation that all shack equipment uses a single source and green wire, like the high quality distribution illustrated in your PDF is spot on, thank you. I guess weather in the UK is pretty benign, although we do have our moments. I remember working in Poland; in February I was surprised to see the lightning protection. In August I understood why.
Kind regards Paul G3NJV Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 ________________________________ From: Jim Brown <k...@audiosystemsgroup.com> Sent: Wednesday, August 14, 2019 8:12:05 PM To: WSJT software development <wsjt-devel@lists.sourceforge.net> Subject: Re: [wsjt-devel] 60 Hz + harmonics sidebands on FT8 signals? (Paul Kube) I would certainly hope that you would want it for your personal safety, and for the non-destruction of your home and your equipment! It also happens that proper bonding of equipment, and obtaining power for all interconnected equipment from outlets that share the same green wire, minimizes hum, buzz, and RFI. That is the focus of my advice. Another observation. The prevalence of lightning varies widely around the world, as shown on this map. Those of living in high frequency strike areas pay a lot more attention to it than do others. https://geology.com/articles/lightning-map.shtml http://lightningsafety.com/nlsi_info/lightningmaps/US_FD_Lightning.pdf http://lightningsafety.com/nlsi_info/lightningmaps/worldlightning.html 73, Jim K9YC On 8/14/2019 4:52 AM, Paul Randall wrote: > There is no requirement for lightning protection in all buildings in the > UK although there are laws which govern businesses separately. As a > result, the lightning protection in the average domestic UK home > approximates to “none at all”, _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
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