I run a ground buss across the back of the radio desk, connect all rigs to that, then connect that buss to a star ground which also goes to a second bus running across the second level of equipment. The star then goes to ground.
-- Support better RFI practices, please sign this petition: at Whitehouse.gov http://wh.gov/lpz5Y On Mon, 2014-04-07 at 09:35 -0700, Jim Brown wrote: > On 4/7/2014 6:26 AM, K4ia wrote: > > Jim > > > > Didn't you mean from chassis of every piece of equipment to ground? > > No daisy-chaining. > > No, I meant exactly what I said. The long-standing advice against > daisy-chaining chassis connections is WRONG. The logic for that advice > is that a connection forms a loop with the connection to whatever common > point is chosen, but those who give the bad advice forget that there are > point-to-point connections between the equipment in the form of coax > cables, audio cables, serial cables, and control cables. These cables > form a much larger loop, that results in far greater induced voltages, > and often the shields of these cables are not even connected to the > chassis, but to the circuit board inside the gear. That combination > makes it FAR more likely that a strike will cause lightning damage, both > because the loop area is greater and the connection is not to the > chassis. So short chassis-to-chassis bonding combined with a bond from > one of those chassis to the common point is the safest from a lightning > safety point of view, because it > minimizes the loop area. > > The short chassis-to-chassis connection also minimizes the power > line-related leakage voltage between equipment that causes hum and buzz > when we connect that equipment using unbalanced connections. > > 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] ______________________________________________________________ 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]
