Based on several responses thus far it would seem I asked a stupid
question or at least one which is not possible to answer. The reason
I am not finding articles with general advice on stacking 40 and/or
30 meter dipoles on the same mast with a TH-11 or other complex
multiband antenna is most likely because each case is different and
there are no applicable rules of thumb. Modelling the whole thing
would be great but by the time I came up with a workable and
reliable model for the TH-11 I probably won't be needing antennas
for DXing. :)
I will proceed with the understanding that this entire venture is an
experiment and may or may not work. Nothing ventured, nothing
gained. Given that this is the only solution which *might*
substantially improve my situation on 40/30 I deem it an acceptable
risk. At the very least I will have gotten some exercise and will
end up with a pile of aluminum which might be put to another use at
a later time. Of course I'm hoping for a somewhat better result.
Although budget is always a prime concern, I am no stranger to
uncharted waters. All of my former EME arrays were far enough off
the beaten path to be considered risky experiments.
I will report back with my results later. I do not have a precise
time table for this project other than to have it done no later than
the end of September.
73,
Paul N1BUG
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