I was tuning?to the WSJT frequency of 14.095.600 for example. I should have been turning to the frequency suggested in the manual. 14.097.100
Chris
Ah yes, it takes a little thought, USB RX of WSPR is 1400-1600Hz above Dial frequency. The U3 frequency is true TX frequency.
So the PPS is working correctly.
73 Alan G4ZFQ