[Elecraft] Strange P3 behavior

[W4CCS]

Gents:

 

Since I installed the KXV3B to add the second pre-amp in one of my K3's, I
have experienced strange behavior in my P3.

 

There seems to be lots of ghost traces (really bad when station has big
signal) as well as these strange "humps" on the scope. Makes no difference
if noise blanker (P3) is on or off.  use this K3 on 6 meters only. K3 # 1
without the KXV3B has no issues.

 

Anyone else experienced this or is this problem confined to my install.

 

Clyde Scott - W4CCS

Moultrie, GA - EM81cg