diff --git a/plugins/channelrx/demodatv/atvdemod.cpp b/plugins/channelrx/demodatv/atvdemod.cpp
index 3608c4125..9f155d123 100644
--- a/plugins/channelrx/demodatv/atvdemod.cpp
+++ b/plugins/channelrx/demodatv/atvdemod.cpp
@@ -643,30 +643,35 @@ void ATVDemod::applyStandard()
         // what is left in a line for the image
         m_intNumberOfSyncLines  = 0;
         m_intNumberOfBlackLines = 0;
+        m_intNumberOfEqLines    = 0; // not applicable
         m_interleaved = false;
         break;
     case ATVStdShort:
         // what is left in a line for the image
         m_intNumberOfSyncLines  = 4;
         m_intNumberOfBlackLines = 4;
+        m_intNumberOfEqLines    = 0;
         m_interleaved = false;
         break;
     case ATVStdShortInterleaved:
         // what is left in a line for the image
         m_intNumberOfSyncLines  = 4;
         m_intNumberOfBlackLines = 4;
+        m_intNumberOfEqLines    = 0;
         m_interleaved = true;
         break;
     case ATVStd405: // Follows loosely the 405 lines standard
         // what is left in a ine for the image
         m_intNumberOfSyncLines  = 24; // (15+7)*2 - 20
         m_intNumberOfBlackLines = 28; // above + 4
+        m_intNumberOfEqLines    = 3;
         m_interleaved = true;
         break;
     case ATVStdPAL525: // Follows PAL-M standard
         // what is left in a 64/1.008 us line for the image
         m_intNumberOfSyncLines  = 40; // (15+15)*2 - 20
         m_intNumberOfBlackLines = 44; // above + 4
+        m_intNumberOfEqLines    = 3;
         m_interleaved = true;
         break;
     case ATVStdPAL625: // Follows PAL-B/G/H standard
@@ -674,6 +679,7 @@ void ATVDemod::applyStandard()
         // what is left in a 64 us line for the image
         m_intNumberOfSyncLines  = 44; // (15+17)*2 - 20
         m_intNumberOfBlackLines = 48; // above + 4
+        m_intNumberOfEqLines    = 3;
         m_interleaved = true;
     }
 
diff --git a/plugins/channelrx/demodatv/atvdemod.h b/plugins/channelrx/demodatv/atvdemod.h
index 16183df92..7337e635c 100644
--- a/plugins/channelrx/demodatv/atvdemod.h
+++ b/plugins/channelrx/demodatv/atvdemod.h
@@ -350,6 +350,7 @@ private:
     int m_intNumberOfLines;
     int m_intNumberOfSyncLines;          //!< this is the number of non displayable lines at the start of a frame. First displayable row comes next.
     int m_intNumberOfBlackLines;         //!< this is the total number of lines not part of the image and is used for vertical screen size
+    int m_intNumberOfEqLines;            //!< number of equalizing lines both whole and partial
     int m_intNumberSamplePerLineSignals; //!< number of samples in the non image part of the line (signals)
     int m_intNumberSaplesPerHSync;       //!< number of samples per horizontal synchronization pattern (pulse + back porch)
     bool m_interleaved;                  //!< interleaved image