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Bob, I sure hope you get a chance to test the Vortex idea.


When I made those models I did see the extra bandwidth over the NV4K for sure, but I found their gain in Eznec appeared to me to be overstated. 


I figured nobody would believe a model over the claims from Vortex, so I think I lost interest in that idea. Their M2 antenna looked funny anyway with the radials about 140" inches long. 


I also see they are shutting down operations as of this month.