Update:
I tried the suggested experiments using the Repeater of interest, Gray625. Nothing worked. Tried another Repeater, still nothing. Then I tried a 3rd Repeater that was within range and it remarked that it is one of the oldest repeaters on-line. I setup RPT-20 with the correct tones and Voila, I got an acknowledgment from the Repeater, then setup the other radio and can get both to Tx, Rx. I kept it on the channel and listened to a conversation between a couple of radio aficionados. So my setup and understanding works. Thanks
I reached out to the tower owner of the other Repeaters that are closer to me that I can’t communicate with. He says he just communicated to that Repeater a day ago. Hmmm…
Q) Could there be a set issue on his end that he’s not aware of and incorrectly published in the myGMRS.com repeater page?
Q) Could the Tx/Rx frequencies be swapped and only his radios are setup to work?
I will order the programming s/w and cable and create a channel where my Tx/Rx frequencies are swapped just to test my theory.
Any other thoughts, ideas?
Thanks for all the help and guidance.