I agree so I won't touch it for now. Did see however, that it is on the receive side that the first can is loose. I just tighten the locking nut and let it go for now.
73 John --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" <wb2...@...> wrote: > > Trying to tune a duplexer with an HT is almost certain to give you more > problems than you already have. > > Chuck > WB2EDV > > > > > ------------------------------------------------------------------------------ > > From: Repeater-Builder@yahoogroups.com > [mailto:repeater-buil...@yahoogroups.com] On Behalf Of jmp46534 > Sent: Monday, September 07, 2009 10:26 AM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Re: De-sense question > > > > > > Thanks Oz for the comments. > > You are right it could be the duplexer, but my money is still on that used > antenna. > > I know when I moved the duplexer to here, I had it wrapped in a blanket and > strapped in to the car seat like a baby. > > I found a document on hooking a handheld to the transmit side and adjusting > for maximum output. Guess that is my next step since I don't have a service > monitor. > > 73 > John > > --- In Repeater-Builder@yahoogroups.com, Rich Osman <lists@> wrote: > > > > John, > > > > Some comments and observations; > > > > Moving a 30 or 40 year old might radio invalidate the fact that it was > > "working at the other site." > > > > Duplexers, particularly 'vintage' duplexers don't always travel well. > > This is particularly true when the person doing the alignment forgets to > > run the locking nuts in... (Of course I've never done this.) > > > > Of course **I've** never made a mistake reconnecting stuff after a > > radio's been moved, either. ;-) > > > > The idea of a binary search is valid and lets you verify the facts you > > think you know. It doesn't hurt to prove that it's the site and not the > > radio. > > > > Finally, remember what happens when you assume... > > > > Oz > > > > jmp46534 wrote: > > > > > > > > > Thanks guys for all the answers and suggestions. > > > > > > I will try most of them, probably not the isolator until we can find > one. > > > > > > The interconnecting cables for the duplexer are from Wacom and are a > > > matched set of RG214 that came with the 6 cans. I also have RG214 > > > going from the cans to radio and bandpass. > > > > > > The radio was tuned using a service monitor by the Ham that set up all > > > of equipment. He owns multiple repeaters and does know what he is doing. > > > > > > It worked fine when it was on his tower. The only changes have been > > > the coax and antenna now that it is here on our tower. > > > > > > That is why I am thinking it must be in the antenna. > > > > > > Oh, I am using a Daiwa CN 801 wattmeter/swr meter with a RG214 cable. > > > > > > Off to try some of your ideas. > > > Thanks and 73 > > > > > > John, W3ML > > > > > > > > > > > > -- > > mailto:oz@ > > Oz > > POB 93167 > > Southlake, TX 76092 (Near DFW Airport) > > >
