Antenna Basics: From the Pages of Monitoring Times Magazine by Bob Grove

Author:Bob Grove [Grove, Bob]
Language: eng
Format: epub
Tags: Crafts; Hobbies & Home, Crafts & Hobbies, Radio Operation, Engineering & Transportation, Engineering, Telecommunications & Sensors, Radio, Professional & Technical, Telecommunications, Radio & Wireless
Amazon: B00J7QK01C
Published: 2014-03-23T04:00:00+00:00

Due to the speed of the lightning discharge, it has high-frequency characteristics. Wrapping a dozen or so turns of the coax into a coil before it enters the dwelling isn’t a bad idea, and running that coax through about ten feet of grounded metal pipe is another. Both of these measures can be thought of as RF chokes.

But what if the lightning hits house wiring? Your equipment may be disconnected from the antenna, but it’s still plugged into the wall. Be sure your home electrical system is protected at the breaker box by a husky metal-oxide varistor (MOV) transient voltage suppressor.

Even your telephone wiring is vulnerable. Get yourself one of those surge protection outlets that has a modular telephone protection jack as well. Excellent units are made by Curtis, APC, and Tripplite. Just be sure it has a sticker indicating that it meets Underwriters Laboratories safety standard UL 1149.

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