[Milsurplus] Magnetic Field Antenna Testing

Michael Hanz aaf-radio-1 at aafradio.org
Mon Apr 1 12:39:29 EDT 2019


On 4/1/2019 11:02 AM, B. Smith wrote:
> The weather was very nice here in Chicken Land this week end so I had 
> a chance to do some antenna testing out in the back yard and set up my 
> portable Magnetic Field Antenna "MFA".  I've posted a diagram of my 
> current "MFA" constructed of "Gutter Spout" which is easily obtained 
> at your nearest home supply dealer. I realized that the radiation 
> efficiency of this type of antenna is very low but the antenna is  
> easily set up and lends itself to portable operations. In addition  
> when operating in a high noise RF environment the antenna can be 
> positioned for best reception to minimize noise. The hollow Gutter 
> Spout material is easy to work with and 90 degree bends are eliminated 
> by use of standard fittings - -  however sheet metal screws are 
> necessary at the joints of sections to ensure low current/voltage 
> loss. An easy DIY project.
>
> http://k4che.com/Tempvideo/Magnetic%20Antenna/Magnetic%20Antenna.htm
>
> 73
> k4che

Ha!  Well done, Breck.  The radiation patterns are very definitive.

Sorta reminds me of another antenna with large tubular elements and high 
RF voltages on one end, except this was no April Fool's humor.

Mike  KC4TOS


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