diff --git a/assets/js/sections/common.js b/assets/js/sections/common.js
index c2385bef..ceb493e5 100644
--- a/assets/js/sections/common.js
+++ b/assets/js/sections/common.js
@@ -139,10 +139,12 @@ function qso_edit(id) {
                     });
 
                     $('#locator').change(function(){
-                       $('#locator_info').load("logbook/searchbearing/" + $(this).val() + "/" + $('#stationProfile').val()).fadeIn("slow");
-                       $.get('logbook/searchdistance/' + $(this).val() + "/" + $('#stationProfile').val(), function(result) {
-                          document.getElementById("distance").value = result;
-                       });
+                        if ($(this).val().length >= 4) {
+                            $('#locator_info').load("logbook/searchbearing/" + $(this).val() + "/" + $('#stationProfile').val()).fadeIn("slow");
+                            $.get('logbook/searchdistance/' + $(this).val() + "/" + $('#stationProfile').val(), function(result) {
+                                document.getElementById("distance").value = result;
+                            });
+                        }
                     });
 
                     $('#sota_ref_edit').selectize({