diff --git a/qmap/libqmap/recvpkt.f90 b/qmap/libqmap/recvpkt.f90
index b4bc0bfbb..043c8bdd9 100644
--- a/qmap/libqmap/recvpkt.f90
+++ b/qmap/libqmap/recvpkt.f90
@@ -1,4 +1,4 @@
-subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8)
+subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8,ndb)
 
 ! Reformat timf2 data from Linrad and stuff data into r*4 array dd().
 
@@ -16,6 +16,7 @@ subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8)
   equivalence (kd,d4)
   equivalence (jd,d8,yd)
 
+  gain=10.0**(0.05*ndb)
   if(nblock2.eq.-9999) nblock2=-9998    !Silence a compiler warning
   if(nsam.eq.-1) then
 ! Move data from the UDP packet buffer into array dd().
@@ -23,15 +24,15 @@ subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8)
         do i=1,174                    !One RF channel, r*4 data
            k=k+1
            d8=buf8(i)
-           dd(1,k)=yd(1)
-           dd(2,k)=yd(2)
+           dd(1,k)=yd(1)*gain
+           dd(2,k)=yd(2)*gain
         enddo
      else if(userx_no.eq.1) then
         do i=1,348                    !One RF channel, i*2 data
            k=k+1
            d4=buf4(i)
-           dd(1,k)=kd(1)
-           dd(2,k)=kd(2)
+           dd(1,k)=kd(1)*gain
+           dd(2,k)=kd(2)*gain
         enddo
      endif
   else
@@ -39,12 +40,12 @@ subroutine recvpkt(nsam,nblock2,userx_no,k,buf4,buf8)
         do i=1,nsam                    !One RF channel, r*4 data
            k=k+1
            d4=buf4(i)
-           dd(1,k)=kd(1)
-           dd(2,k)=kd(2)
+           dd(1,k)=kd(1)*gain
+           dd(2,k)=kd(2)*gain
 
            k=k+1
-           dd(1,k)=kd(1)
-           dd(2,k)=kd(2)
+           dd(1,k)=kd(1)*gain
+           dd(2,k)=kd(2)*gain
         enddo
      endif
   endif
diff --git a/qmap/soundin.cpp b/qmap/soundin.cpp
index 17ac856c3..eee330b94 100644
--- a/qmap/soundin.cpp
+++ b/qmap/soundin.cpp
@@ -208,7 +208,7 @@ void SoundInThread::inputUDP()
         // If buffer will not overflow, move data into datcom_
         if ((k+iz) <= 60*96000) {
           int nsam=-1;
-          recvpkt_(&nsam, &b.iblk, &b.nrx, &k, b.d8, b.d8);
+          recvpkt_(&nsam, &b.iblk, &b.nrx, &k, b.d8, b.d8, &m_dB);
           datcom_.fcenter=b.cfreq + m_fAdd;
         }
         m_hsym=(k-2048)/14400;           //14400 = 0.15 * 96000
diff --git a/qmap/soundin.h b/qmap/soundin.h
index a0900ba6e..6a541410a 100644
--- a/qmap/soundin.h
+++ b/qmap/soundin.h
@@ -67,7 +67,8 @@ private:
 };
 
 extern "C" {
-  void recvpkt_(int* nsam, quint16* iblk, qint8* nrx, int* k, double s1[], double s2[]);
+  void recvpkt_(int* nsam, quint16* iblk, qint8* nrx, int* k,
+                double s1[], double s2[], int* ndb);
 }
 
 #endif // SOUNDIN_H