diff --git a/DCCWaveform.cpp b/DCCWaveform.cpp
index 6744f4d..919deee 100644
--- a/DCCWaveform.cpp
+++ b/DCCWaveform.cpp
@@ -279,8 +279,14 @@ DCCWaveform  DCCWaveform::mainTrack(PREAMBLE_BITS_MAIN, true);
 DCCWaveform  DCCWaveform::progTrack(PREAMBLE_BITS_PROG, false);
 RMTChannel *DCCWaveform::rmtMainChannel = NULL;
 RMTChannel *DCCWaveform::rmtProgChannel = NULL;
-volatile bool DCCWaveform::railcomSampleWindow=false; // true during packet transmit
 
+bool DCCWaveform::railcomPossible=false;     // High accuracy only    
+volatile bool DCCWaveform::railcomActive=false;     // switched on by user
+volatile bool DCCWaveform::railcomDebug=false;     // switched on by user
+volatile bool DCCWaveform::railcomSampleWindow=false; // true during packet transmit
+volatile byte DCCWaveform::railcomCutoutCounter=0;    // cyclic cutout
+volatile byte DCCWaveform::railcomLastAddressHigh=0;
+volatile byte DCCWaveform::railcomLastAddressLow=0;
 
 DCCWaveform::DCCWaveform(byte preambleBits, bool isMain) {
   isMainTrack = isMain;