Topband: Supporting Ladder line
mikewate at gmail.com
Wed Jan 10 17:01:36 EST 2018
Many Topbanders have used just ONE run of WD-1(?) military field telephone
wire with great results. *You just have to wind the transformers with the
correct impedance ratios*.
I made some for Milt, N5IA (SK) in 2012. Visit
www.w0btu.com/files/beverage/N5IA_WD-1 and click on 100_4742.JPG where you
can see the configurations and the transformer Z ratios.
I forget what exactly he told me, but it was something like those single
WD-1 Beverages were as good or better than the existing ones he had with
wide spacing (8" to 12" spacing?).
On Sat, Jan 6, 2018 at 3:05 PM, Vic <g4byg at lindgren1.karoo.co.uk> wrote:
> I dont know the diameter of that WD1a wire but suspect it is quite small
> which would make home made 450 ohm line spacing very small indeed.
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