Many years ago I contracted with Motorola for a large repeater communications system/building to be located at an existing tower facility that was already called home to dozens of other radio systems. The Motorola R-56 standard was the 'bible' they quoted from and used. I have personally used that same method many times since then. It works for me. Your mileage may vary.
Gary, N7BRJ On Sun, Mar 21, 2021 at 4:28 PM Bob McGraw <rmcg...@blomand.net> wrote: > If one is grounding on the inside for lightning, you best think > otherwise! Any and all grounding for lightning should be done outside > of the structure. You should have lightning protection devices on all > coax, balanced, and rotor lines installed BEFORE they enter the structure. > > Internal grounding or bonding is to keep all equipment at the same > potential. > > 73 > > Bob, K4TAX > > > Message: 10 > Date: Sat, 20 Mar 2021 18:11:57 +0200 > From: Victor Rosenthal 4X6GP<k2vco....@gmail.com> > To:elecraft@mailman.qth.net > Subject: Re: [Elecraft] best grounding technique > Message-ID:<2bd943c9-6513-50a2-0ff8-e990994bb...@gmail.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Having a bus that runs the length of an operating desk with all the > equipment connected to it by short straps is not that different from > bonding each piece of equipment to the ones next to it. But it allows > you to remove one unit without breaking the "chain." > This is contrasted to the "star" system, in which each piece of > equipment is grounded to a central point with a relatively long ground > lead. > > 73, > Victor, 4X6GP > Rehovot, Israel > CWops #5 > Formerly K2VCO > https://www.qsl.net/k2vco/ > On 20/03/2021 17:57, Wes wrote: > > > Interesting.? I don't have (and probably won't buy) the book, but here > > we have a disconnect---no pun intended. > > > > 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. > > > > This pretty much sums up why I'm not in the market for the book. > > > > Wes? N7WS > > > > > > On 3/19/2021 2:44 PM, Rick NK7I wrote: > >> The ARRL book on Grounding and Bonding is very clear.? Each piece of > >> gear has its OWN wire/strap to a common grounding point (a copper pipe > >> mounted on a wall is a common method, that being connected to the > >> system ground; everything to the building safety ground, more ground > >> rods every 2x the depth of the rod). > >> > >> Look at it this way, say a discharge comes in through your antenna, > >> into the radio, connected to your computer and other devices.? Would > >> you prefer that energy goes only through the radio to ground (losing > >> the radio) or in a series through everything else in the shack too? > >> The 'fan' mode you mention is preferred, give that energy EVERY chance > >> to seek ground BEFORE it passes through your gear. > >> > >> Energy shunts (PolyPhase devises for example) at the antenna entry > >> point are another must.? One per feed. > >> > >> I suggest reading that book, several times (it's complex) for a better > >> understanding. > >> > >> 73, > >> Rick NK7I > >> > >> On 3/19/2021 2:06 PM, Robert G Strickland via Elecraft wrote: > >>> It seems that there are two ways of running grounding wires in the > >>> shack: FAN - from a common ground point, individual grounding wires > >>> are run to each piece of equipment; LINKING - a ground wire is run > >>> from each piece of equipment to the next and eventually ending in a > >>> common ground point. What's the group wisdom on the relative merits > >>> of these two approaches to running grounds in the shack? > >>> ...robert > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiomem...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
