Right, but I see a BIG difference between the signal at these two
points. You're saying there should be NO difference???

If so, I must have a short (or a partial short) on the TP3 node ...

Clif Holland wrote:
It's not confusing if you check the schematic. D40 is the VCO output on the
PLL unit and TP3 is the VCO input on the RF unit. They give 2 places you can
measure it.