Thanks harshness, yes check switch did 4 tests for the 1000.2 antena instead of 3 prelim tests for the tailgater.
It's seeing all 3 LNB's as 1.2k from ports 1 through 3, and shows port 4 as unconnected, which is also correct, I think,
so the cable + 1000.2 LNB's seem to be working OK and...