diff --git a/rigs/yaesu/newcat.c b/rigs/yaesu/newcat.c
index 436b08775..fa278e7f6 100644
--- a/rigs/yaesu/newcat.c
+++ b/rigs/yaesu/newcat.c
@@ -7228,7 +7228,7 @@ int newcat_send_morse(RIG *rig, vfo_t vfo, const char *msg)
     {
         if (strlen(msg2) > 50)
         {
-            msg2[50] = 0; // truncate if too long
+            msg2[51] = 0; // truncate if too long
             rig_debug(RIG_DEBUG_ERR, "%s: msg length of %d truncated to 50\n", __func__,
                       (int)strlen(msg));
         }
@@ -11266,6 +11266,10 @@ int newcat_set_cmd_validate(RIG *rig)
     {
         strcpy(valcmd, "PC;");
     }
+    else if (strncmp(priv->cmd_str, "AC", 2) == 0)
+    {
+        strcpy(valcmd, "");
+    }
     else
     {
         rig_debug(RIG_DEBUG_TRACE, "%s: %s not implemented\n", __func__, priv->cmd_str);
diff --git a/rigs/yaesu/newcat.h b/rigs/yaesu/newcat.h
index f3a229035..43ffe73f2 100644
--- a/rigs/yaesu/newcat.h
+++ b/rigs/yaesu/newcat.h
@@ -50,7 +50,7 @@
 typedef char ncboolean;
 
 /* shared function version */
-#define NEWCAT_VER "20231230"
+#define NEWCAT_VER "20240113"
 
 /* Hopefully large enough for future use, 128 chars plus '\0' */
 #define NEWCAT_DATA_LEN                 129