You might consider the 9 circle which uses 3 verticals for each
direction. It might be interesting to model that with missing elements
in those directions but the other directions should work just fine.
The 8 circle uses 2 pair of phased elements. It is hard to speculate
not know which elements would be missing. It would seem to reason the
the intact pairs would work fine.
Most 8 circles do not have a center element. That would be a 9.
W0MU
On 2/7/2022 2:38 PM, Jim Miller wrote:
I'm looking at putting out an 8 circle but three of the antennas on the
circumference may need to be seasonally placed since they would be on my
neighbor's property.
If those three were removed would the remaining 2 elements for each
(opposite) direction left in place still produce a cardioid pattern if
switched toward those directions? I'd terminate the removed lines with 75
ohm terminations of course.
I would leave the center element and the remaining 5 elements on the
circumference in place year round to minimize seasonal work if needed.
73
Jim ab3cv
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|