Topband: More - lightning protection on 4 sq

Lee K7TJR k7tjr at msn.com
Fri Jun 13 22:43:34 EDT 2008


    Adding 5 ohms reactance to the 160 meter 4-square elements is just like tuning down frequency about 20kHz from a verticals resonance. They have about 5 ohms reactance of their own then. Adding the arrestors to each element is like moving the resonant frequency up about 20kHz. Fortunately 4-squares generally are very forgiving of their elements resonance. If your 4-square had good bandwidth before it likely will not change much except to shift its design frequency up a little. 
    My 2 cents or .005 gallons.   Lee K7TJR OR



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