diff --git a/jsc.cpp b/jsc.cpp
index fca6fee..3d0765f 100644
--- a/jsc.cpp
+++ b/jsc.cpp
@@ -137,8 +137,14 @@ QString JSC::decompress(Codeword const& bitvec){
             k++;
         }
 
+        if(start + k >= bytes.length()){
+            break;
+        }
         j = j*s + bytes[start + k] + base[k];
 
+        if(j >= (int)JSC::size){
+            break;
+        }
         auto word = QString(JSC::map[j].str);
 
         out.append(word);
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 9a99133..50315a0 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1445,8 +1445,11 @@ void MainWindow::initializeDummyData(){
         return;
     }
 
-    // auto d = DecodedText("h+vWp6mRPprH", 6);
-    // qDebug() << d.message() << buildMessageFrames(d.message());
+    auto d = DecodedText("h+vWp6mRPprH", 6);
+    qDebug() << d.message() << buildMessageFrames(d.message());
+
+    auto d = DecodedText("bYG4CKYT0cKG", 7);
+    qDebug() << d.message();
 
     // qDebug() << Varicode::isValidCallsign("@GROUP1", nullptr);
     // qDebug() << Varicode::packAlphaNumeric50("VE7/KN4CRD");