[TowerTalk] Connectors, down the tower

Jim Brown jim at audiosystemsgroup.com
Sun Dec 29 16:38:49 EST 2019


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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