Should be in the group archives a few years back. Sinclair renamed/changed the names/model numbers for pretty much the exact same vhf antennas I have had all the hell with... but they are pretty much the same design as the current models with reported changes in the coax harness/feed system to address the IMD/PIM problem.
I've spoken to former Sinclair Engineers in person more than once... got a lot of smoke blown up my back side but no resolution/solution to the antenna models I still have in storage. I know of one state agency still using the problematic VHF dipole assemblies and still experiencing grief they don't acknowledge or seem to want to properly deal with. Go figure... The IMD/PIM generation happens/happened in that series 4 and 8 bay (two horizontal spaced dipoles per mast position) folded dipole antenna models. A Sinclair Engineer in a face to face conversation suggested I re-install my 4 bay antennas using the information from their current (same) product (with a different model number). No cigar... No fun... lots of money and time wasted. s. > "Chuck Kelsey" <wb2...@...> wrote: > Boy, for some reason, there's a discussion I don't > recall. Oh well. > > The only array from Sinclair I was aware of as being > trouble was their SRL222/SD222 series. > > Chuck > WB2EDV > > > ----- Original Message ----- > From: "skipp025" <skipp...@...> > To: <Repeater-Builder@yahoogroups.com> > Sent: Tuesday, May 19, 2009 7:01 PM > Subject: [Repeater-Builder] Re: Sinclair dipole array premature failure > (noisy) > > > > There are known problems with this series of antennas... see > > my previous posts bad-mouthing Sinclair regarding this same > > situation. > > > > >
