diff --git a/CMakeLists.txt b/CMakeLists.txt
index a23cbfb..0e074f2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -303,6 +303,7 @@ set (wsjtx_CXXSRCS
   astro.cpp
   messageaveraging.cpp
   WsprTxScheduler.cpp
+  varicode.cpp
   mainwindow.cpp
   Configuration.cpp
   main.cpp
diff --git a/varicode.cpp b/varicode.cpp
new file mode 100644
index 0000000..4f32466
--- /dev/null
+++ b/varicode.cpp
@@ -0,0 +1,24 @@
+#include "varicode.h"
+
+QString alphabet = {"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-./?"};
+
+qint16 Varicode::unpack16bits(QString const& triple){
+    int a = alphabet.indexOf(triple.at(0));
+    int b = alphabet.indexOf(triple.at(1));
+    int c = alphabet.indexOf(triple.at(2));
+    return (41*41) * a + 41*b + c;
+}
+
+QString Varicode::pack16bits(qint16 packed){
+    QString out;
+    qint16 tmp = packed / (41*41);
+    out.append(alphabet.at(tmp));
+
+    tmp = (packed - (tmp * (41*41))) / 41;
+    out.append(alphabet.at(tmp));
+
+    tmp = packed % 41;
+    out.append(alphabet.at(tmp));
+
+    return out;
+}
diff --git a/varicode.h b/varicode.h
new file mode 100644
index 0000000..b490c4d
--- /dev/null
+++ b/varicode.h
@@ -0,0 +1,15 @@
+#ifndef VARICODE_H
+#define VARICODE_H
+
+#include <QString>
+
+class Varicode
+{
+public:
+    //Varicode();
+
+    qint16 unpack16bits(QString const& triple);
+    QString pack16bits(qint16 packed);
+};
+
+#endif // VARICODE_H
diff --git a/wsjtx.pro b/wsjtx.pro
index 277f876..b18a1e2 100644
--- a/wsjtx.pro
+++ b/wsjtx.pro
@@ -67,7 +67,8 @@ SOURCES += \
   echoplot.cpp echograph.cpp fastgraph.cpp fastplot.cpp Modes.cpp \
   WSPRBandHopping.cpp MessageAggregator.cpp SampleDownloader.cpp qt_helpers.cpp\
   MultiSettings.cpp PhaseEqualizationDialog.cpp IARURegions.cpp MessageBox.cpp \
-  EqualizationToolsDialog.cpp
+  EqualizationToolsDialog.cpp \
+    varicode.cpp
 
 HEADERS  += qt_helpers.hpp \
   pimpl_h.hpp pimpl_impl.hpp \
@@ -84,7 +85,8 @@ HEADERS  += qt_helpers.hpp \
   messageaveraging.h echoplot.h echograph.h fastgraph.h fastplot.h Modes.hpp WSPRBandHopping.hpp \
   WsprTxScheduler.h SampleDownloader.hpp MultiSettings.hpp PhaseEqualizationDialog.hpp \
   IARURegions.hpp MessageBox.hpp EqualizationToolsDialog.hpp \
-    qorderedmap.h
+    qorderedmap.h \
+    varicode.h
 
 
 INCLUDEPATH += qmake_only