[Elecraft] Lightening static
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anyone1545 at gmail.com
Mon Jul 31 17:54:08 EDT 2023
Static buildup is a problem mostly with vertical antennas. Wind blowing across the antenna creates static. Measure the end of the coax cable to see if there is DC connection to ground. Some of the lightening devices have static drain inductors. I think AC/DC does. Polyphasers do not. Coil “Q” coil on a butternut ant asks as a static drain choke. The black box matching units on Cushcraft verticals have a static drain choke.
If there is not a DC path to ground, use a 1 megohm resistor or static drain choke.
Do not disconnect cables inside the house. I have seen lightning jump 5 feet from a cable on the floor to a wall ac outlet. Do not bring lightning into the house, where it goes is unpredictable.
ARRL, I think the “ doctor is in” did a story about coax switches and lightening.
The switch contacts are to close together. Lightening will weld the contacts.
Ray
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