diff --git a/application/views/gridmap/index.php b/application/views/gridmap/index.php
index f688debde..efbd2b121 100644
--- a/application/views/gridmap/index.php
+++ b/application/views/gridmap/index.php
@@ -37,7 +37,7 @@
 
                 <label class="col-md-1" for="propagation">Propagation</label>
                 <div class="col-sm-4">
-                    <select class="form-select form-select-sm w-auto" id="propagation">
+                    <select class="form-select form-select-sm w-auto" id="propagation" <?php if ($user_default_band == 'SAT') {echo 'disabled';} ?>>
                         <option value=""><?php echo lang('general_word_all'); ?></option>
                         <option value="AS">Aircraft Scatter</option>
                         <option value="AUR">Aurora</option>
@@ -174,4 +174,4 @@
     echo "var gridsquares_gridsquares_not_confirmed = \"" . $gridsquares_gridsquares_not_confirmed . "\";\n";
     echo "var gridsquares_gridsquares_total_worked = \"" . $gridsquares_gridsquares_total_worked . "\";\n";
     ?>
-</script>
\ No newline at end of file
+</script>