[AFMUG] FSK SM sees AP on SA but not on AP Eval

[Ken Hohhof]

This SM just stopped working after several months.  I would say it went 
"deaf", but Spectrum Analyzer still works.  It sees the AP at the right 
frequency and signal level, and if I move the AP frequency around it's clear 
that interference is not the problem.  And no, it's not a configuration 
issue.

I'm sending a field tech to climb the customer's TV tower tomorrow and 
change out the SM, but I'm trying to remember if I've ever seen this before.

Is this a known failure mode - not deaf, but seemingly can't lock onto or 
decode beacons?