Hi Richard, Thanks for the info.
This is a new installation, and I do have some reflected power. That will be taken care of very soon. Fortunately, all the repeater components are still here at the house. Running the 'real' heliax to the DB-224 on a pole, so it's pretty close to what it'll be like on the hill. Thanks again, Tim W5FN --- In [email protected], Richard Fletcher <rickfle...@...> wrote: > > Hi Tim, > > The most common cause for "desense" is connections and not actually the > duplexer. Especially if there was no "desense" prior. First I would check the > link from the duplexer to the hard-line (If this fits into your site > configuration) put a meter right there where the hard-line comes into the > building. If you get any reflected power, then your desense problem is most > likely at the antenna or from the meter and up the cable. If you think there > is a power reduction there, well that jumper to the hard-line is bad. If that > looks good, then check all the connections on the station (before you start > turning the screws). Believe me, I have had to re-tune many a duplexer that > someone turned the screws on because of "desense" that was a cabling issue > and not the duplexer. > God luck on the adventure.. > > BR > -Richard > > > > > ________________________________ > From: tahrens301 <tahr...@...> > To: [email protected] > Sent: Tuesday, August 25, 2009 12:43:30 PM > Subject: [Repeater-Builder] DB-4050WB Duplexer > > > Hi Folks, > > I was checking e-bay for duplexers last night, and came across a > DB-4050 that the user said was a pass/reject duplexer. > > It looks almost identical to one that has been giving me some desense > issues, but had a marking of SP-1894. > > The cabling looks a bit different, but functionally equivalent. > > Has anybody used one of these, and is it really a pass/reject, or just > a group of notch cavities? I've seen the specs on the data page here, > but it only gives the specs & doesn't call it anything specifically. > > I don't plan on bidding on it, as I have a 6 cavity BpBr Wacom coming > from a friend, but after all of the pain I've had with the DB prod > box, was just curious. > > Thanks! > > Tim W5FN >
