On 12/29/2019 10:56 AM, Charles Gallo wrote:
Again, thoughts?
My control cables terminate on old-fashioned barrier strips in a
weatherproof box mounted to the wall outside the shack, and to barrier
strips at the base of the tower 250 ft away. My coax runs originally
terminated on a big copper plate with thru-mounted Polyphasers; over the
years, they would occasionally fry as they either took a lightning hit
or I did something stupid inside the shack (wrong antenna, etc.). They
are expensive, and a PITA to change (two people, one on each side of the
wall), so put together a large weatherproof enclosure with eight
arrestors that WX0B sells -- it's a circuit I like better, and the GDTs
are field replaceable. I've gradually been moving antennas to those
arrestors.
For both enclosures, short stubs of PVC conduit go through the wall. All
three boxes have a ground bus that goes to a half dozen driven rods, to
the power ground, and to the operating desk ground.
73, Jim K9YC
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