I think Tom may have an idea here.
One of the tech support fellows at TenTec told me that he had
an AlphaDelta DX-B sloper (set to work on 160-80-40 meters)
and it works real well if it is mounted on a good sized tower, with
a nice tribander at the top as a capacity hat. The Alpha Delta
technician told me adding some ground radials can help, also,
depending on how your tower loads up (as on this type of sloper
the tower and beam act as the image return path).
I suspect the Alpha Delta DX-A would work even better as it
is like an inverted V with two elements - bigger can be better.
I now have one of the DX-B slopers and it plays just OK - but I don't
have a tower. I have it mounted on a mere metal mast about 25
feet up, with about ten ground radials and no beam as a capacity
hat - so I really expect it would play well if it was mounted as
designed.
(I am working on the tower, so eventually I will have it set up right...)
Given the way it works for me in my severely compromised setup, I
suspect it would work much better if it was installed against a tower
as it should be.
Just my take... ======== Richards K8JHR =========
------------------------------------------------------------------------------------------------
Tom Haavisto wrote:
> What I ended up doing was putting up was two half-slopers for 80 (one
> for CW and one for phone, and an inverted L for 160.
>
> Makes for a great DX combination :-) Make sure you add radials to the
> bottom of the tower - it won't play well without them.
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