https://github.com/Hamlib/Hamlib/issues/1275

rigs/yaesu/newcat.c

@@ -10827,7 +10827,7 @@ int newcat_set_cmd_validate(RIG *rig)
     }
     else if (strncmp(priv->cmd_str, "ST", 2) == 0)
     {
-        strcpy(valcmd, ";");
+        strcpy(valcmd, "X;");
     }
     else
     {
@@ -10855,7 +10855,7 @@ int newcat_set_cmd_validate(RIG *rig)
             case RIG_MODEL_FT991:
             case RIG_MODEL_FTDX101MP:
             case RIG_MODEL_FTDX3000:
-                strcpy(valcmd, ";");
+                strcpy(valcmd, "X;");
                 break;
             // these models do not work with a single ;
             case RIG_MODEL_FT897:

rigs/yaesu/newcat.h

@@ -50,7 +50,7 @@
 typedef char ncboolean;
 
 /* shared function version */
-#define NEWCAT_VER "20230328"
+#define NEWCAT_VER "20230419"
 
 /* Hopefully large enough for future use, 128 chars plus '\0' */
 #define NEWCAT_DATA_LEN                 129