Can you take a picture of what you are talking about or tell me where it is in the drawing?
I have a 4048 that was factory set to 2m so I can try to get a piture of that or at least draw something that represents what is really there. Vern KI4ONW On Tue, 01 Jan 2008 00:08:34 -0000 "lcradio2002" <[EMAIL PROTECTED]> wrote: > Well, I was finally able to rework my 150's band DB4048 >duplexer down > to 2m. I built some new longer loops as per the info on >the RB > website, and I fabbed up all new 12.5" RG214 coaxes. > Now, the iso > (i.e. the notch) is around 81dB, and the insertion loss >is around > 1.4dB. I think these are within specs. > > My question lies in the original layout of the duplexer. > Originally, > on the side with the 1/4 wave transformers, at the >duplexer can there > was a TEE, and a shorted stub was connected there. All >three on that > side had these stubs. The conversion article does not >mention using > them, although the final picture shows them there. > There is no > mention of using them, so I removed them. > > Any idea what they are really for? >
