From ddf727f351ad3803ca2c6c05dfff0c95ca253a33 Mon Sep 17 00:00:00 2001 From: Joe Taylor Date: Sun, 20 Dec 2020 21:42:42 -0500 Subject: [PATCH] Adjust a 3 dB offset in Q65 SNRs from list decodes. --- lib/q65_sync.f90 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/q65_sync.f90 b/lib/q65_sync.f90 index 644eb1644..fdd40f88a 100644 --- a/lib/q65_sync.f90 +++ b/lib/q65_sync.f90 @@ -182,7 +182,7 @@ subroutine q65_sync(nutc,iwave,nmax,mode_q65,codewords,ncw,nsps,nfqso,ntol, & call q65_intrinsics_ff(s3,nsubmode,b90/baud,nFadingModel,s3prob) call q65_dec_fullaplist(s3,s3prob,codewords,ncw,esnodb,dat4,plog,irc) if(irc.ge.0 .and. plog.ge.PLOG_MIN) then - snr2=esnodb - db(2500.0/baud) + snr2=esnodb - db(2500.0/baud) + 3.0 !Empirical adjustment id1=1 write(c77,1000) dat4(1:12),dat4(13)/2 1000 format(12b6.6,b5.5)