Don't beat yourself.  It happens to all of us...
Sent on a Sprint Samsung Galaxy NoteĀ® 3
-------- Original message --------
From: Courtney Judd <k4wi@k4wi.net> 
Date: 12/13/2015  11:33 AM  (GMT-05:00) 
To: ACG <contest@alabamacontestgroup.org> 
Cc: SECC <secc@contesting.com> 
Subject: [SECC] me stupido! 
man, i think that my higher brain functions have gone 
downhill big time! I should have been able to sort this problem out in 
short order! Didn't see the light until this morning! I had everything 
set up for the ten test this weekend and started out Friday but couldn't
 hear anything.... zero! OK, I thought solar storm or something! 
Saturday heard a few weak signals , I could work those all ok... S-meter
 never came off zero, SWR checked normal, rig set up right... checked 
other bands and they are all covered with big signals... so what's the 
problem with 10? I finally noticed a little RX light lit up on the 
antenna selection button on the 2000D . Here I had been listening on the
 external antenna port which had nothing attached to it... no wonder i 
could not hear anything..... all back to normal except I feel incredibly
 stupid! lol Cort