[Elecraft] Broadband Antenna

[Alan WB6ZQZ]

I suspect paralleling the input and series connecting the outputs would be 
more efficient. If you daisy chain them the impedances of the lines are 
farther off than the parallel case.

I hope you are able to try it and report the results. It looks like a good 
approach.

Most of the loss in these baluns is due to dielectric (from the voltage 
field) losses, so series connecting the high voltage outputs minimizes the 
voltage across each core and should also minimize loss.

We have used unterminated Vee beams on several field days with excellent 
results. They are far more work to put up than I expected, and you need 
trees in just the right spots unless you bring your own supports. They have 
very narrow beamwidth, much narrower than a 3 element beam. They operate on 
a wide range of frequencies and bands. We used window twinlead to a Johnson 
matchbox, and it worked very well.

I suspect that a good low-loss 4:1 balun on a decent tuner is all that is 
required. The tuner can make up the remaining mismatch. Since the antenna 
is balanced there is not much tendency for balance problems.

-- Alan WB6ZQZ

From: "Michael Fitzgerald" <mffitz@gmpexpress.net>

To copy this antenna right you really need a 16:1 balun.  Does anyone have any
ideas on how to do this starting from Elecraft BL1 parts?  I figure I could
either put two of them in series or stack one on top of another and parallel
the inputs and series the outputs.  ...