Why? What is the goal?
If you want an Al pile to make 3 monobanders, there are probably cheaper
ways to buy the Al. In any case two more booms are needed.
The "handbook" and other (e.g. G0KSC) mono-bander "free" designs are
good to superb. From my limited experience with interlaced design
modeling my estimate is 1db or unlikely 2db more gain and somewhat
cleaner pattern than a tri-band interlaced design if same net boom
length per band. I think it unlikely you will have successful
mono-banders by just de-interlacing the existing C-31XR elements. Each
resulting monobander will need to be modeled and optimized. I would
suggest investing in an NEC4 package and Dan AC6LA's great AutoEZ optimizer.
What I have learned in my modeling is great respect for successful
interlaced designs like the C-31XR and the JKantenna designs. It's hard
to put everything on one boom and get performance very near to that of
mono-banders.
Grant KZ1W
On 5/31/2017 4:38 AM, w5wz@xxxxxxxx wrote:
Has anyone ever modified a Force 12 C-31XR to create mono-band OWA
type antenna for 10, 15, or 20 meters? Does a successful design for
such an endeavor exist?
--Scott, W5WZ
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