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
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