SUCCESS!? the clue was in Steve observing that JMRI was not hearing back from the PR4.? I think that has to do with the very poor job I have done in connecting to my programming track.? I did a somewhat better job and now I am getting the various decoder possibilities. Mark Granville's observations are completely on point:? but I am now more confident in using the PR4 for programming CV's and thank all of you for your time and thoughts.
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NancyI
