diff --git a/res/data/sat_modes.json b/res/data/sat_modes.json
index ff760999..c1c42b21 100644
--- a/res/data/sat_modes.json
+++ b/res/data/sat_modes.json
@@ -5,5 +5,6 @@
     {"id": "LU", "name": "L/U (1268 / 435)"},
     {"id": "LS", "name": "L/S (1268 / 2400)"},
     {"id": "LX", "name": "L/X (1268 / 10450)"},
-    {"id": "VS", "name": "V/S (145 / 2400)"}
+    {"id": "VS", "name": "V/S (145 / 2400)"},
+    {"id": "SX", "name": "S/X (2400 / 10450)"}
 ]
diff --git a/ui/LogbookWidget.cpp b/ui/LogbookWidget.cpp
index 47f00065..ccaed76c 100644
--- a/ui/LogbookWidget.cpp
+++ b/ui/LogbookWidget.cpp
@@ -120,7 +120,7 @@ LogbookWidget::LogbookWidget(QWidget *parent) :
     ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_RX_PWR, new UnitFormatDelegate("W", 3, 0.1, ui->contactTable));
     /*https://www.pe0sat.vgnet.nl/satellite/sat-information/modes/ */
     /* use all possible values, do not use only modern modes in sat_modes.json */
-    ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_SAT_MODE, new ComboFormatDelegate(QStringList()<<" "<<"VU"<<"UV"<<"US"<<"LU"<<"LS"<<"LX"<<"VS"<<"K"<<"T"<<"A"<<"J"<<"B"<<"S"<<"L", ui->contactTable));
+    ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_SAT_MODE, new ComboFormatDelegate(QStringList()<<" "<<"VU"<<"UV"<<"US"<<"LU"<<"LS"<<"LX"<<"VS"<<"SX"<<"K"<<"T"<<"A"<<"J"<<"B"<<"S"<<"L", ui->contactTable));
     ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_SFI, new UnitFormatDelegate("", 0, 1, ui->contactTable));
     ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_SILENT_KEY, new ComboFormatDelegate(Data::instance()->boolEnum, ui->contactTable));
     ui->contactTable->setItemDelegateForColumn(LogbookModel::COLUMN_SRX, new UnitFormatDelegate("", 0, 1, ui->contactTable));