Balun 2:1 (2.25:1)

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Balun 2:1 (2.25:1)

Postby zs2cx » Sat Apr 23, 2011 5:16 pm

I know someone who needs this :lol: so here goes.
Long ago, or once upon a time :P there was this 2 antennas both 50 ohm +_ they needed to be fed by a single transmitter.
The boss had 2 antennas stacked and was in direstraits, as coax'es can be confusing, expensive and in Namibia u might find yourself driving that extra 500km to buy a pie and a coke with a packet of 20 Gunston, so he improvised, the story goes..
he melted stell and carbon and som woodbe ashes, Nahhh just kidding.
transform ratio : 2.25:1 and a lovely match for any thing 25:50double up):75 ohm


Not too much fiidling required, u would have to test it before mounting, 1mm wire thicness is ok for 100 watts easy, even a .5mm wire coupe's with 100 watt ssb.
Dasy Marius 6vdx
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Re: Balun 2:1 (2.25:1)

Postby ZS6VDX » Sun Apr 24, 2011 6:27 pm


So I desided to take all down and start again,One dipole at a time and make sure that they are resonant at 3.765 and then put them up one on North and other one South 1/4 wave apart running East to West.Sins I have 100m role of RG213 I think that is what I am going to use and thanks to ZS2CX I will be able to get this antenna to work.Two 80m Dipoles horizontal and parallel with each other.Phased Dipoles. :idea: :idea: :idea:

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