diff --git a/q65w/commons.h b/q65w/commons.h
index aa4485eaa..e145c2693 100644
--- a/q65w/commons.h
+++ b/q65w/commons.h
@@ -6,7 +6,7 @@
 extern "C" {
 
 extern struct {                     //This is "common/datcom/..." in Fortran
-  float d4[4*5760000];              //Raw I/Q data from Linrad
+  float d4[2*5760000];              //Raw I/Q data from Linrad
   float ss[322*NFFT];               //Half-symbol spectra at 0,45,90,135 deg pol
   float savg[NFFT];                 //Avg spectra at 0,45,90,135 deg pol
   double fcenter;                   //Center freq from Linrad (MHz)
@@ -45,7 +45,7 @@ extern struct {                     //This is "common/datcom/..." in Fortran
 } datcom_;
 
 extern struct {                     //This is "common/datcom/..." in Fortran
-  float d4[4*5760000];              //Raw I/Q data from Linrad
+  float d4[2*5760000];              //Raw I/Q data from Linrad
   float ss[322*NFFT];               //Half-symbol spectra at 0,45,90,135 deg pol
   float savg[NFFT];                 //Avg spectra at 0,45,90,135 deg pol
   double fcenter;                   //Center freq from Linrad (MHz)
diff --git a/q65w/getfile.cpp b/q65w/getfile.cpp
index 01b17469d..edbae0337 100644
--- a/q65w/getfile.cpp
+++ b/q65w/getfile.cpp
@@ -31,13 +31,13 @@ void getfile(QString fname, bool xpol, int dbDgrd)
       for(int i=0; i<npts; i+=2) {
         datcom_.d4[j++]=fac*((float)id[i] + dgrd*gran());
         datcom_.d4[j++]=fac*((float)id[i+1] + dgrd*gran());
-        if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
+//        if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
       }
     } else {
       for(int i=0; i<npts; i+=2) {
         datcom_.d4[j++]=(float)id[i];
         datcom_.d4[j++]=(float)id[i+1];
-        if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
+//        if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
       }
     }
     fclose(fp);
@@ -70,7 +70,7 @@ void savetf2(QString fname, bool xpol)
     for(int i=0; i<npts; i+=2) {
       buf[i]=(qint16)datcom_.d4[j++];
       buf[i+1]=(qint16)datcom_.d4[j++];
-      if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
+//      if(!xpol) j+=2;               //Skip over d4(3,x) and d4(4,x)
     }
     fwrite(buf,2,npts,fp);
     fclose(fp);
diff --git a/q65w/libq65/decode0.f90 b/q65w/libq65/decode0.f90
index 14b2e75f3..2676944eb 100644
--- a/q65w/libq65/decode0.f90
+++ b/q65w/libq65/decode0.f90
@@ -3,7 +3,7 @@ subroutine decode0(dd,ss,savg)
   use timer_module, only: timer
   parameter (NSMAX=60*96000)
 
-  real*4 dd(4,NSMAX),ss(322,NFFT),savg(NFFT)
+  real*4 dd(2,NSMAX),ss(322,NFFT),savg(NFFT)
   real*8 fcenter
   integer hist(0:32768)
   logical ldecoded
@@ -28,10 +28,10 @@ subroutine decode0(dd,ss,savg)
         hist(j1)=hist(j1)+1
         j2=min(abs(dd(2,i)),32768.0)
         hist(j2)=hist(j2)+1
-        j3=min(abs(dd(3,i)),32768.0)
-        hist(j3)=hist(j3)+1
-        j4=min(abs(dd(4,i)),32768.0)
-        hist(j4)=hist(j4)+1
+!        j3=min(abs(dd(3,i)),32768.0)
+!        hist(j3)=hist(j3)+1
+!        j4=min(abs(dd(4,i)),32768.0)
+!        hist(j4)=hist(j4)+1
      enddo
      m=0
      do i=0,32768
diff --git a/q65w/libq65/filbig.f90 b/q65w/libq65/filbig.f90
index 415c9bb90..d7ac29080 100644
--- a/q65w/libq65/filbig.f90
+++ b/q65w/libq65/filbig.f90
@@ -1,11 +1,11 @@
 subroutine filbig(dd,nmax,f0,newdat,nfsample,c4a,n4)
 
-! Filter and downsample complex data stored in array dd(4,nmax).  
+! Filter and downsample complex data stored in array dd(2,nmax).  
 ! Output is downsampled from 96000 Hz to 1375.125 Hz.
 
   use timer_module, only: timer
   parameter (MAXFFT1=5376000,MAXFFT2=77175)
-  real*4  dd(4,nmax)                         !Input data
+  real*4  dd(2,nmax)                         !Input data
   complex ca(MAXFFT1)                        !FFT of input
   complex c4a(MAXFFT2)                       !Output data
   real*8 df
diff --git a/q65w/libq65/q65c.f90 b/q65w/libq65/q65c.f90
index 0ae531b06..2f663fdd9 100644
--- a/q65w/libq65/q65c.f90
+++ b/q65w/libq65/q65c.f90
@@ -16,7 +16,7 @@ subroutine q65c(itimer)
   character*6 mygrid,hisgrid
   character*20 datetime
 
-  common/datcom2/dd(4,5760000),ss(322,NFFT),savg(NFFT),nparams0
+  common/datcom2/dd(2,5760000),ss(322,NFFT),savg(NFFT),nparams0
 
 !### REMEMBER that /npar/ is not updated until nparams=nparams0 is executed. ###
   common/npar/fcenter,nutc,idphi,mousedf,mousefqso,nagain,                &
diff --git a/q65w/libq65/q65wa.f90 b/q65w/libq65/q65wa.f90
index 273081b41..fb119e193 100644
--- a/q65w/libq65/q65wa.f90
+++ b/q65w/libq65/q65wa.f90
@@ -11,7 +11,7 @@ subroutine q65wa(dd,ss,savg,newdat,nutc,fcenter,ntol,nfa,nfb,         &
   parameter (MAXMSG=1000)            !Size of decoded message list
   parameter (NSMAX=60*96000)
   complex cx(NSMAX/64)               !Data at 1378.125 samples/s
-  real dd(4,NSMAX)
+  real dd(2,NSMAX)
   real*4 ss(322,NFFT),savg(NFFT)
   real*8 fcenter
   character*3 shmsg0(4)
diff --git a/q65w/libq65/recvpkt.f90 b/q65w/libq65/recvpkt.f90
index b900664fd..e0df94e7a 100644
--- a/q65w/libq65/recvpkt.f90
+++ b/q65w/libq65/recvpkt.f90
@@ -12,7 +12,7 @@ subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8,buf16)
   integer*2 jd(4),kd(2),nblock2
   real*4 xd(4),yd(2)
   real*8 fcenter
-  common/datcom/dd(4,5760000),ss(322,NFFT),savg(NFFT),fcenter,nutc,  &
+  common/datcom/dd(2,5760000),ss(322,NFFT),savg(NFFT),fcenter,nutc,  &
        junk(NJUNK)
   equivalence (kd,d4)
   equivalence (jd,d8,yd)
@@ -35,24 +35,6 @@ subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8,buf16)
            dd(1,k)=kd(1)
            dd(2,k)=kd(2)
         enddo
-     else if(userx_no.eq.-2) then
-        do i=1,87                    !Two RF channels, r*4 data
-           k=k+1
-           c16=buf16(i)
-           dd(1,k)=xd(1)
-           dd(2,k)=xd(2)
-           dd(3,k)=xd(3)
-           dd(4,k)=xd(4)
-        enddo
-     else if(userx_no.eq.2) then
-        do i=1,174                    !Two RF channels, i*2 data
-           k=k+1
-           d8=buf8(i)
-           dd(1,k)=jd(1)
-           dd(2,k)=jd(2)
-           dd(3,k)=jd(3)
-           dd(4,k)=jd(4)
-        enddo
      endif
   else
      if(userx_no.eq.1) then
diff --git a/q65w/libq65/symspec.f90 b/q65w/libq65/symspec.f90
index 00de817ef..a1d945ddf 100644
--- a/q65w/libq65/symspec.f90
+++ b/q65w/libq65/symspec.f90
@@ -16,7 +16,7 @@ subroutine symspec(k,ndiskdat,nb,nbslider,nfsample,    &
   parameter (NFFT=32768)              !Length of FFTs
   real*8 ts,hsym
   real*8 fcenter
-  common/datcom/dd(4,5760000),ss(322,NFFT),savg(NFFT),fcenter,nutc,  &
+  common/datcom/dd(2,5760000),ss(322,NFFT),savg(NFFT),fcenter,nutc,  &
        junk(NJUNK)
   real*4 ssz5a(NFFT),w(NFFT),w2a(NFFT),w2b(NFFT)
   complex cx(NFFT)
@@ -54,7 +54,7 @@ subroutine symspec(k,ndiskdat,nb,nbslider,nfsample,    &
      savg=0.
      ihsym=0
      k1=0
-     if(ndiskdat.eq.0) dd(1:4,k+1:5760000)=0.  !### Should not be needed ??? ###
+     if(ndiskdat.eq.0) dd(1:2,k+1:5760000)=0.  !### Should not be needed ??? ###
   endif
   k0=k
 
diff --git a/q65w/soundin.cpp b/q65w/soundin.cpp
index 4f6811353..cc854424f 100644
--- a/q65w/soundin.cpp
+++ b/q65w/soundin.cpp
@@ -14,7 +14,7 @@ extern "C"
 {
   struct
   {
-    double d8[2*60*96000];   //This is "common/datcom/..." in fortran
+    double d8[60*96000];              //This is "common/datcom/..." in fortran
     float ss[322*NFFT];
     float savg[NFFT];
     double fcenter;
@@ -210,6 +210,7 @@ void SoundInThread::inputUDP()
         if ((k+iz) <= 60*96000) {
           int nsam=-1;
           recvpkt_(&nsam, &b.iblk, &b.nrx, &k, b.d8, b.d8, b.d8);
+//          if(nsam==-99) recvpkt_(&nsam, &b.iblk, &b.nrx, &k, b.d8, b.d8, b.d8);
           datcom_.fcenter=b.cfreq + m_fAdd;
         }