[Amps] QRO operation into a 80 meter vertical

Brian Carling bcarling at cfl.rr.com
Thu Feb 20 20:31:34 EST 2014


Don may I recommend shunt feeding your tower?

Best regards - Bry Carling



> On Feb 20, 2014, at 6:43 PM, donroden at hiwaay.net wrote:
> 
> Slightly OFF TOPIC , so respond direct please.
> 
> I have a 145 foot Rohn 45G with insulated guys, but grounded base in concrete.
> 
> no room for radials ... 33 feet at most over 60 degrees.
> 
> Tower is between hamshack ( house ) and garage
> and concrete drive ( 300 degrees = no radials )
> 
> I would like to experiment with a ground independent (or less ground dependent)
> 1/2 wave vertical radiator ..... a vertical dipole hung from 145 feet, maybe six feet from the tower face or leg.   Fed in the center or at the bottom.
> 
> Similar to a sloper, but closer to the tower.   Maybe connect the dipole to the top of the tower and feed it like a folded unipole  ??  Open to all suggestions.
> 
> I'd love to hear how you constructed your high impedance tuners too.
> 
> Don W4DNR
> 
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