When I change the PBT on the Paragon II, there is an immediate effect on the ssb signal. When I change the PBT on the Argo the difference isn't so much or the increment is smaller - something I'm doing needs to be different. If you have an Argo V, what PBT settings do you use on U/LSSB. I'm guessing they are coupled with BW? Thanks, 73, Paul