Hello, I was wondering about that little jumper on the rf board of my k1. I have the KAT1 installed so I assume it should be in the KAT1 position not the K1 position. But my question is, When aligning the filter board do I still need to solder/unsolder the resistor on the bottom of the rf board, or is that what the jumper is for? Tnx de AE6CP K2/100 #2737 K1-4 #1128