Many thanks to David who has taken the time to assist an old duffer like me. All this programming stuff is right on the very edge of my knowledge and skil set.?
It seems to be all working, and tested it on my dummy load, and a wire antenna.?
Overall it seems to work well. The power readings are within a small margin both at low and high power.?
I need to play with this a lot more to understand with which antennas it works best etc.?
Attached video shows quick tuning at just 20w. And stays similarly tuned when at a higher power.
BTW, it's hard to tell the difference between the quickly chattering relays and my squeaky chair!
Overall I'm pleased with the results.?
Again, thanks to the help received on this group.