Plans are proceeding for the new station. I need some expert advice.
It's a long story but for several reasons I may need to put the 15 meter stack
on the 40 meter tower. I know this is not an optimal situation but I hope
to mitigate it somewhat by a decent sized spacing between the 40 and 15
antennas.
Plans call for a 4 high stack of 6 or 7 element stack of 15 meter Yagis
(48 ft boom) on the same tower with (2) 4-element M2 Yagis for 40. This will
be a rotating tower so all booms will be parallel at all times. Heights
for the 15 stack will be 144/108/72/36. Heights for the 40 meter Yagis will
be 200/90. With this spacing, I would have 18 feet between the 15 Yagis
at 72 and 108 and the lower 40 meter beam.
My gut feeling is this should be enough to mitigate just about all
interaction. Am I right? Anybody out there who has run a program to analyze
this
situation?
Any thoughts would be appreciated.
73 Bill KH7XS/K4XS
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