Are you actually talking about "switched 2 direction beverages" or 2
bi-directional beverages.
A bi-directional beverage receives in 2 directions at the same time on a
single wire. It is un-terminated. I have 2 of these in my beverage farm:
one E/W and one N/S.
A switched single direction 2 wire beverage can be switched for pattern and
can be implemented with ladder line or closely spaced individual wires.
K1TTT has great resources on his website for such designs, as do others.
Personally, I do not find the gain differences that big between my beverage
choices (although they are measurable). The GAME CHANGER is F/B ratio.
I have a phased 2 wire array to EU with 2 terminated wires of approx. 950 ft
in length spaced roughly 50 ft apart and running parallel. The US stations
on 40 and 80M drop by 5 S units vs the bi-direction beverage running E/W.
The EU station goes up by roughly an S unit. For contesting - it's a game
changer.
On 160M I see less F/B impact but similar 1 s Unit gain in the EU direction.
Ed N1UR
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