Skipp, Do you have any idea WHY the models with two dipoles side-by-side are problematic and the in-line models are not? Are there differences in the construction of the individual dipoles that cause problems? Differences in the phasing harness? I'm thinking about using these dipoles to build an in-line 4 bay array with my own harness, but if the dipoles themselves are prone to problems that would seem a waste of more time and money. I was considering doing that even before the array became a noise nightmare, since it would produce a pattern somewhat more to my liking and maybe (depending on how it was done) reduce weight and wind load.
When (if?) I recover from blood loss to black flies at the repeater site today, I will report on my findings testing individual dipoles from the problematic array.... Paul N1BUG skipp025 wrote: > Note the problematic Sinclair VHF dipole arrays are/were the > models with two Dipoles per mast position, which means each > location on the mast has a horizontal bar with a folded dipoles > at each end of the mast (two parallel dipoles per horizontal mast). > > The traditional in-line folded dipole arrays work muy bueno... > (very well). Just the dual side-by-side FD arrays are the train > wreck (in what appear to be the 4 and 8 bay assemblies).
