UPDATE: I have an operational test setup working using the Wavetek 1080 (sweep/marker generator), oscilloscope, RF detector, and a couple 50 ohm terminators. With them I was able to successfully reset the band-pass on the individual cavities I am using for the duplexer.
All I have left to do with the duplexer is make up the associated interconnecting cables and re-adjust things a bit as a complete duplexer system. I am still a little hung up on making these interconnecting cables; but I am making a little progress there as well (see other message chain in the group). Thank-you all for helping me figure out how to setup this tuning configuration. <<< vern (W6NCT) >>>