diff --git a/companion/src/eeprominterface.cpp b/companion/src/eeprominterface.cpp
index c880f72b3..58c157ced 100644
--- a/companion/src/eeprominterface.cpp
+++ b/companion/src/eeprominterface.cpp
@@ -203,8 +203,8 @@ RawSourceRange RawSource::getRange(const ModelData & model, const GeneralSetting
           break;
         case TELEMETRY_SOURCE_VERTICAL_SPEED:
           result.step = 0.1;
-          result.min = singleprec ? -12.5 : -20.0;
-          result.max = singleprec ? 13.0 : 20.0;
+          result.min = singleprec ? -12.5 : -300.0;
+          result.max = singleprec ? 13.0 : 300.0;
           result.decimals = 1;
           result.unit = QObject::tr("m/s");
           break;
diff --git a/radio/src/opentx.cpp b/radio/src/opentx.cpp
index bc6dffd4c..3718645aa 100644
--- a/radio/src/opentx.cpp
+++ b/radio/src/opentx.cpp
@@ -723,7 +723,7 @@ ls_telemetry_value_t minTelemValue(uint8_t channel)
     case TELEM_ACCz:
       return -1000;
     case TELEM_VSPEED:
-      return -200;
+      return -3000;
     default:
       return 0;
   }
@@ -765,7 +765,7 @@ ls_telemetry_value_t maxTelemValue(uint8_t channel)
     case TELEM_MIN_VFAS:
       return 1000;
     case TELEM_VSPEED:
-      return 200;
+      return 3000;
     case TELEM_ACCx:
     case TELEM_ACCy:
     case TELEM_ACCz: