New Antenna Physics Discovered!!!!

[Philip Miller Tate]

At a small ham sale last Sunday which Brian and I attended, I saw a  
small dish antenna for sale. My first thought was that with a little  
modification, it would make a good wok. On closer inspection, I  
realized that my idea would have been a case of reverse engineering.

Phil M1GWZ


On 2 Oct 2008, at 17:26, fgentges at mindspring.com wrote:

> After looking at the site and reading the wide range of frequencies  
> I am
> disappointed that they do not cover 75 meters so I can hook up my
> Johnson Desk Kilowatt on AM to talk to my friends.
>
> On a more serious side, this somehow smells like the Maxon dipole in a
> smaller package.  The Maxon was examined by ARRL while our esteemed
> president was there and found to be a dipole center insulator with  
> a 50
> ohm non-inductive resistor across the terminals.  The result was that
> the feed line did not see wildly varying impedances from the connected
> dipole.  Thus VSWRs no higher than 2:1 if I recall.
>
> In a modern package using surface mount etc. a similar antenna  
> could be
> made to cover a wide range of frequencies and just enough radiator
> elements to receive and transmit enough signal to qualify as an  
> antenna.
>
> I suspect they are much better at glitzy web pages than antenna  
> engineering.
>
> I do wonder how it would fare with a kilowatt AM rig on 75 meters  
> though.
>
> Frank K0BRA
>
> Michael O'Dell wrote:
>> (cough - choke - sputter)
>>
>> http://www.amtrevolution.com/
>>
>> and if you believe this, i have a bridge to show
>> you after the tide goes out.
>>
>>   -mo
>>
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