We have a strange problem.
With a 2km link using RB433 and R52Hn we see about a 10-15 db difference in signal between chain 0 and 1. Both ends of the link use the same cross pol panel antennas. When we swap the antenna ports at one end of the link the signal stays the same. When we swap both antenna ports at both ends, the signal remains the same. When we swap one end with a completely new router, the signal remains the same.
Spectrum scan shows no interference. Snoop shows no traffic. Signals are in the mid 60 and high 70s.
It just is the weirdest thing. Any ideas?