From a6406ea58f5248a8df27173907c5cf4dcc83aa01 Mon Sep 17 00:00:00 2001
From: Joe Taylor <k1jt@arrl.org>
Date: Wed, 8 Jan 2014 20:55:11 +0000
Subject: [PATCH] Some adjustments to usage of flat3.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3625 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 lib/flat3.f90   | 26 +++++++++++++-------------
 lib/symspec.f90 |  5 +++--
 mainwindow.cpp  |  5 ++---
 soundout.h      |  2 --
 4 files changed, 18 insertions(+), 20 deletions(-)

diff --git a/lib/flat3.f90 b/lib/flat3.f90
index 8255fca5c..75562268d 100644
--- a/lib/flat3.f90
+++ b/lib/flat3.f90
@@ -1,9 +1,9 @@
-subroutine flat3(savg0,iz,nterms,ynoise,savg)
+subroutine flat3(s0,iz,nfa,nfb,nterms,ynoise,s)
 
   implicit real*8 (a-h,o-z)
   parameter (NSMAX=6827)
-  real*4 savg0(iz)
-  real*4 savg(iz)
+  real*4 s0(iz)
+  real*4 s(iz)
   real*4 ynoise,y4
 
   real*8 x(NSMAX)
@@ -17,10 +17,11 @@ subroutine flat3(savg0,iz,nterms,ynoise,savg)
   df=12000.0/16384.0
 
   do i=1,iz
-     y0(i)=db(savg0(i))
+     y0(i)=db(s0(i))
   enddo
-  ia=200.0/df
-  ib=4500.0/df
+  ia=(nfa+200.0)/df
+  ib=5000.0/df
+  if(nfb.gt.0) ib=nfb/df
   j=0
   do i=ia,ib
      j=j+1
@@ -35,14 +36,12 @@ subroutine flat3(savg0,iz,nterms,ynoise,savg)
 
   do iter=1,99
      call polfit(x,y,y,npts,nterms,mode,a,chisqr)
-!     print*,iter,npts,a(1:nterms)
 
-     rewind 21
      do i=1,ib
         f=i*df
-        yfit(i)=0.0
-        do n=1,nterms
-           yfit(i)=yfit(i) + a(n) * f**(n-1)
+        yfit(i)=a(nterms)
+        do n=nterms-1,1,-1
+           yfit(i)=f*yfit(i) + a(n)
         enddo
 !        write(21,1010) f,y0(i),yfit(i),y0(i)-yfit(i)
 !1010    format(4f12.3)
@@ -51,6 +50,7 @@ subroutine flat3(savg0,iz,nterms,ynoise,savg)
      do j=1,npts
         y1=y(j)-yfit(ii(j))
         if(y1.lt.ynoise) then
+!        if(y1.lt.ynoise .and. y1.gt.-ynoise) then
            k=k+1
            x(k)=x(j)
            y(k)=y(j)
@@ -67,8 +67,8 @@ subroutine flat3(savg0,iz,nterms,ynoise,savg)
 !  enddo
 
   do i=1,ib
-     y4=y0(i)-yfit(i)
-     savg(i)=10.0**(0.1*y4)
+     y4=y0(i)-yfit(i) - 20.0
+     s(i)=10.0**(0.1*y4)
   enddo
 
 end subroutine flat3
diff --git a/lib/symspec.f90 b/lib/symspec.f90
index ce1dc9504..bcd240aba 100644
--- a/lib/symspec.f90
+++ b/lib/symspec.f90
@@ -26,7 +26,8 @@ subroutine symspec(k,ntrperiod,nsps,ingain,slope,pxdb,s,df3,ihsym,npts8)
   complex cx(0:MAXFFT3/2)
   integer*2 id2
   common/jt9com/ss(184,NSMAX),savg(NSMAX),id2(NMAX),nutc,ndiskdat,         &
-       ntr,mousefqso,newdat,nfa,nfb,ntol,kin,nzhsym,nsynced,ndecoded
+       ntr,mousefqso,newdat,npts8a,nfa,nfsplit,nfb,ntol,kin,nzhsym,         &
+       nsave,nagain,ndepth,ntxmode,nmode,junk(5)
   data rms/999.0/,k0/99999999/,nfft3z/0/,slope0/0.0/
   equivalence (xc,cx)
   save
@@ -108,7 +109,7 @@ subroutine symspec(k,ntrperiod,nsps,ingain,slope,pxdb,s,df3,ihsym,npts8)
   savg=scale*ssum/ihsym
 
   if(abs(slope+0.1).lt.0.01) then
-     call flat3(s,iz,3,1.0,s)
+     call flat3(s,iz,nfa,nfb,3,1.0,s)
 !     call flat3(savg,iz,3,1.0,savg)
   endif
 
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 9111b89dc..707aed805 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -14,8 +14,6 @@
 #include "getfile.h"
 #include "logqso.h"
 
-
-
 #ifdef QT5
 #include <QtConcurrent/QtConcurrentRun>
 #endif
@@ -711,12 +709,13 @@ void MainWindow::dataSink(qint64 frames)
     jt9com_.ndiskdat=0;
   }
 
-
 // Get power, spectrum, and ihsym
   trmin=m_TRperiod/60;
   slope=0.0;
   slope=(float)m_wideGraph->getSlope();
   int k (frames - 1);
+  jt9com_.nfa=m_wideGraph->nStartFreq();
+  jt9com_.nfb=m_wideGraph->getFmax();
   symspec_(&k,&trmin,&m_nsps,&m_inGain,&slope,&px,s,&df3,&ihsym,&npts8);
   if(ihsym <=0) return;
   QString t;
diff --git a/soundout.h b/soundout.h
index b2d71bbc2..2ce735444 100644
--- a/soundout.h
+++ b/soundout.h
@@ -8,8 +8,6 @@
 
 class QAudioDeviceInfo;
 
-class QAudioDeviceInfo;
-
 // An instance of this sends audio data to a specified soundcard.
 
 class SoundOutput : public QObject