Topband: Best angle of radiation ?

[Herb Schoenbohm]

On 10/25/2012 1:46 PM, Bruce wrote:
> AM broadcast band antennas 5/8 & 1/2 wave tall are rarely used any 
> more.  I noticed a reduction of the tall AM towers starting  about the 
> 1960's.
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>   73
> Bruce-K1FZ
>
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>
>

Bruce,  I would add one exception to that and that would be the use by 
some broadcasters of Franklin or folded Franklin design antennas which 
still are in use, especially by stations 50 KW clear channel stations 
near the high end of the AM band.  With the AM band expansion such an 
antenna, even in its folded configuration theroretically gives you 
nearly a 3db increase on the ground-wave and without the nasty high 
angle lobe of a 5/8 wave.

I wonder if anyone has ever tried to build a Franklin antenna on TB?


Herb Schoenbohm, KV4FZ