[AFMUG] Lower signal on one end of PTP link

[Bruce Robertson via Af]

I've been doing this enough years (decades?) that it seems like I should 
know this, but I'm having a brain-dead moment.  Must be all the eggnog.  
I have an Airfiber 24 link.  One end has a solid signal of -50/-50, and 
the other end varies around -53/-53 to as much as -55/-55.  Which end is 
more likely to be slightly out of alignment? Or is it impossible to tell?