OK after much poking (and sage advice from Dave Doe K1HRV), it appears that:
- I have a new external SWR/power meter which allows me to read data quickly but is amusing on SSB and of course with no power
- which was combined with a mismatch to the antenna which led to full fold back of the power level
- compounded by the settings in the WSJT software which?confounded?what I was observing
Thanks for all the suggestions.? The fold back comments on SWR and the discussion of the details of the ALC provide the keys to unravelling my confusion?here.