Gordon,
If it is passed through on the bias circuit, would adding some capacitors help?? Every connection of the bias to the LPF circuit may need to be bypassed.
This might mess up the filters instead of helping.
So far, you are the only one that is reporting an issue.? It would help if others verified that there is an issue with other V2 sbitx or for HFSignals to respond with measurements from the production units that have been tested.
73
Evan
AC9TU
