From bc9e8f89bc73ee72d776b9b6aacb7a16bd465d39 Mon Sep 17 00:00:00 2001
From: Joe Taylor <joe@princeton.edu>
Date: Tue, 8 Mar 2022 11:48:54 -0500
Subject: [PATCH] Remove the SNR adjustment for Q65 averaged decodes.  It does
 not seem to work as expected.

---
 lib/qra/q65/q65.f90 | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/qra/q65/q65.f90 b/lib/qra/q65/q65.f90
index 65683dd71..2133294ef 100644
--- a/lib/qra/q65/q65.f90
+++ b/lib/qra/q65/q65.f90
@@ -781,9 +781,8 @@ subroutine q65_snr(dat4,dtdec,f0dec,mode_q65,nused,snr2)
   sig_area=sum(spec(ia+nsum:ib-nsum)-1.0)
   w_equiv=sig_area/(smax-1.0)
   snr2=db(max(1.0,sig_area)) - db(2500.0/df)
-  if(nused.eq.2) snr2=snr2 - 1.5
-  if(nused.eq.3) snr2=snr2 - 2.4
-  if(nused.ge.4) snr2=snr2 - 3.0
+! NB: No adjustment to SNR is now made for nused>1, because that process did
+! not seem to work as expected.
 
   return
 end subroutine q65_snr