[Elecraft] 43 Ft Vertical and Elecraft Tuners

Jim Brown jim at audiosystemsgroup.com
Wed Sep 4 00:56:31 EDT 2013


On 9/3/2013 9:16 PM, Don Wilhelm wrote:
> I use paralleled dipoles here, and I have limited the number of bands 
> on a single feedline to 3 bands, so I have one for 20, 15, and 10 
> meters, and another for 30, 17, and 12.  The wires are spaced about 1 
> foot apart with PVC spreaders. 

I like fan dipoles a lot, and quickly came to all of the same 
conclusions you did. One thing I learned from modeling is that the 
lowest frequency band has the same SWR bandwidth of a single dipole, but 
the dipoles for higher frequencies have roughly half the SWR bandwidth.

73, Jim K9YC


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