On 3/20/2021 8:57 AM, Wes wrote:
If Rick's comment is accurate, and I have no reason to think otherwise, then what it states is in direct conflict with what one co-author (K9YC) has preached for years, that each box should connect to the next and there is only one connected to the ground system. He even calls it madness to use individual connections to a common ground bus.
Ward's text on this topic does, include my recommendations for "daisy-chain" bonding of interconnected equipment, but also downgrades it in favor of a star WITHIN THE STATION, and with an emphasis on keeping bonding connections short. He includes a photo I provided of W6GJB's neatly packaged station for his contesting trailer, showing a copper pape bonding bus just behind the equipment, with bonding conductors to it from each piece of gear. The emphasis is on keeping bonding conductors very short, both to minimize power line buzz and potential differences between equipment in a lightning event. He shows how an Al sheet laid on top of the operating desk can serve as both a bonding plane and minimize induction onto cables laid on it. And he has incorporated my advice that the loop area of interconnecting cables and bonding cables should be minimized to prevent magnetic coupling by bundling or lacing them together.
There's also very good text on proper shield connections (the Pin One Problem), bypassing of unshielded conductors at penetrations of enclosures. There's material on the use of ferrite chokes to prevent RF in the shack, how to deal with end-fed antennas with a feedpoint in the shack, and lots of other good stuff.
Another goal, covered in the last chapter which is not yet done, is to address second floor shacks. Outside the shack, there's very good discussion of towers, bonding of the entire premises, ground rods, connection methods, and so on. Everything conforms to NEC and good engineering practice.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
