FRS 9012--Yesterday tried un & re seating the satellite card a few times and it did reduce the noise (see aLOG 38634) but only for a short time. This morning, the Corner2 CPS only section of the interface chassis was power cycled. So far this has reduced the noise again; we'll see for how long.
Several hours later, the noise level on the CPS HAM3 H2 is still low, like the others. So, so far, this chassis power cycle has fixed the noise issue. See attached compared to the 9th image attached to Ed's log, this.