[Gridsquare Activators] Only show results if band has been posted

application/views/activators/index.php

@@ -70,6 +70,7 @@
           $vucc_grids[$line->call] = $line->vucc_grids;
        }
     }
+    if( $this->input->post('band') != NULL) {
         if ($activators_array) {
 
             $result = write_activators($activators_array, $vucc_grids, $custom_date_format, $this->input->post('band'), $this->input->post('leogeo'));
@@ -77,10 +78,12 @@
         else {
             echo '<div class="alert alert-danger" role="alert"><a href="#" class="close" data-dismiss="alert" aria-label="close">&times;</a>Nothing found!</div>';
         }
+    }
     ?>
 
 </div>
 
+
 <?php
 
 function write_activators($activators_array, $vucc_grids, $custom_date_format, $band, $leogeo) {