On 4/30/07, Merritt <[EMAIL PROTECTED]> wrote: > while i havent used them my self, i have seen them fall apart on a > tower.. the folded dipole sinclair antennas, on the vhf split.. we > have some of their dB counterparts on the same tower, same age or > older, and while electrically the dB antennas have degraded > significantly, all the lobes are still attached!
I specifically stated the heavy-duty (modern) models. Are you talking about the newer heavy duty models with the cable harness enclosed inside the mast and shipped as a single unit, or the older style that you mounted to your own mast with provided brackets? Also the HD models are made of much stouter material than the standard models. They also have "low-IMD" models for sites where passive intermod is a problem. > the sinclair i saw had the upper lobe broken off the mast, flying in > the wind.. striking some 6" rigid copper feedline for a tv station! > your mileage my vary but those antennas arent very neighborly! I think you're thinking of the older models. I don't think I have the upper body strength to snap any of the pieces, including the dipoles themselves, off of the HD models, even if I tried. They're made of very large tubing. I'd have to stand on it on the ground and pull with both arms to do any serious damage to the antenna, I'm sure. > be advised, there was a recent production problem with some andrew > folded dipoles.. either the 224 or 264, i cant remember, but it is the > one with the internal harness.. there was a production change leading > to performance degradation after a few months in service, though i > understand this has since been corrected.. Both manufacturers have seen problems like this over the long haul. It happens. Sucks when your antenna does it, too. I believe Skipp has had a problem with one of the "made in Mexico" Sinclairs about 1/2 a year ago. Nate WY0X
