Topband: More - lightning protection on 4 sq

[Roger D Johnson]

Rick Stealey wrote:
> 
> Price says:
>> I opened a Polyphaser IS-50UX-C0 and it had 2 small disk ceramic capacitors 
>> in parallel.
> 
> Ok we have agreement all around.  Thanks Price for the data.  Now we know we have .02 in series with 50 ohms, so that is about 4 ohms of reactance and 4 ohms in series with 50 ohms results in a phase shift of 5.06 degrees according to trigonometry.  And now we also have someone who has measured .02 with a 50 ohm load and actually saw 5 ohms of reactance on an antenna analyzer.  That's great.
> 
> If you guys would like to expand this interesting thread to a discussion of Polyphasors I could benefit from it.
> 
> I will start a new subject title.
> 
> 73
> Rick  K2XT

Don't forget that it's the relative phase between the elements that
determines the pattern. Adding a small reactance to the feedpoint of
each element should not change the relative phase between the elements.
The resonant frequency of each element will go up a little bit.

As to Polyphasers, it's my understanding that quite a bit of the energy
in a lightning strike is in the 1 to 2 mHz range. I can't see that a
series cap will help much in that instance.

73, Roger

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