[Antennas] How to make an Air Cooled (AKA Loaded Whip) 315MHz antenna

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Gary K9GS <garyk9gs at wi.rr.com> wrote:
> Don wrote:
>> Greetings,
>>
>> http://www.byvac.com/downloads/RLnn/How-to-make-a-Air-Cooled-433MHz-antenna.pdf
>>
>> shows how to make a 433MHz antenna that's a little over 70mm in length.
>> 433MHz is typically used for radio controlled devices in Europe. While
>> 315MHz is typically used for radio controlled devices in America.
>> Â Â Â  Very short and very simple whip antennas of this nature are not   ca.
>> covered in my ARRL antenna books. The lengths also don't seem to jibe
>> with fractional wave lengths. Does anyone have any ideas about scaling
>> the 433MHz whip back to 315MHz? The more theory, the better.
> 
> What is an "air cooled" antenna??

Good question. "Air cooled" is new nomenclature for me too.
    It looks like a plain old "loaded whip antenna" to me. But the guy 
who published the howto at the link calls it "Air Cooled." 

73,

-- 
Don Kuenz, KB7RPU

Genius is nothing but a greater aptitude for patience. - de Buffon