[Antennas] resonance

Sat Dec 17 19:33:32 EST 2005

Robert Lay (W9DMK) wrote:
> I don't see anything in your response that points me to a
> specific reference. I gave you a specific reference. So,
> I suggest that you shoot down my reference, or point me
> directly to one that backs up your allegations.
>
Never mind. You are right. Sorry I brought it up.
> 73 de W9DMK - Bob Lay, Dahlgren, VA 
> http://zaffora.f2o.org/W9DMK/W9dmk.html 
> w9dmk at crosslink.net
>>>> My basis for the above is from Figure 6, page 2-6 of
>>> the 17 th Editon of the ARRL Antenna Book. If you
>>> like, I will check the RSGB Antenna Book to see what
>>> it says.
>>>>>>> No, that is just a missapplication of the formula
>>>> for determing length of wire antennas. I am pretty
>>>> sure there are correction factors to be considered
>>>> for 'thick' dipoles.
>>>>>>>>>>>> Would you like to share with us your reference for
>>> that?
>>>>> Sure, just look up the formula for determining length
>> of a half wave for a given frequency. You can find the
>> formula in any antenna book or handbook. Then read the
>> considerations when using the formula. You will fing
>> that is only good to frequencies up to 30mhz or so, and
>> then only for wire antennas.
>>>> You can find other formulas for determining half
>> wavelengths of thick dipoles for use in beams and
>> verticals in the sections on beam construction.
>>> ______________________________________________________________
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