diff --git a/mainwindow.cpp b/mainwindow.cpp
index b136cf298..d1482b53c 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -2858,9 +2858,6 @@ void MainWindow::processMessage(QString const& messages, int position, bool ctrl
     }
   }
   decodedtext = t2a;
-  int nmod=ntsec % (2*m_TRperiod);
-  m_txFirst=(nmod!=0);
-  ui->txFirstCheckBox->setChecked(m_txFirst);
 
   if (decodedtext.indexOf(" CQ ") > 0) {
 // TODO this magic 36 characters is also referenced in DisplayText::_appendDXCCWorkedB4()
@@ -2874,6 +2871,10 @@ void MainWindow::processMessage(QString const& messages, int position, bool ctrl
   auto t4 = t3.replace (" CQ DX ", " CQ_DX ").split (" ", QString::SkipEmptyParts);
   if(t4.size () < 6) return;             //Skip the rest if no decoded text
 
+  int nmod=ntsec % (2*m_TRperiod);
+  m_txFirst=(nmod!=0);
+  ui->txFirstCheckBox->setChecked(m_txFirst);
+
   QString hiscall;
   QString hisgrid;
   decodedtext.deCallAndGrid(/*out*/hiscall,hisgrid);