diff --git a/application/views/interface_assets/header.php b/application/views/interface_assets/header.php
index abb948b3..8c5e8afe 100644
--- a/application/views/interface_assets/header.php
+++ b/application/views/interface_assets/header.php
@@ -238,10 +238,8 @@
 								form.action = "<?php echo site_url('search'); ?>";
 								form.method = "post";
 							} else if (action === 'qso') {
-								form.action = "<?php echo site_url('qso'); ?>";
-								form.method = "get";
-								input.name = "manual";
-								input.value = "0";  // Set to 1 if go to "Post-QSO" logging
+								form.action = "<?php echo site_url('qso?manual=0'); ?>"; // Set ?manual=0 to 1 if go to "Post-QSO" logging
+								form.method = "post";
 							}
 							form.submit();
 						}
diff --git a/application/views/qso/index.php b/application/views/qso/index.php
index bcbe8fd1..bb98b60f 100755
--- a/application/views/qso/index.php
+++ b/application/views/qso/index.php
@@ -109,7 +109,7 @@
               <div class="form-row">
                 <div class="form-group col-md-9">
                   <label for="callsign"><?php echo lang('gen_hamradio_callsign'); ?></label><?php if ($this->optionslib->get_option('dxcache_url') != '') { ?>&nbsp;<i id="check_cluster" data-toggle="tooltip" data-original-title="Search DXCluster for latest Spot" class="fas fa-search"></i> <?php } ?>
-                  <input type="text" class="form-control" id="callsign" name="callsign" value="<?php echo !empty($_GET['callsign']) ? $_GET['callsign'] : ''; ?>" required>
+                  <input type="text" class="form-control" id="callsign" name="callsign" value="<?php if ($this->input->post('callsign') !== null) { echo htmlspecialchars($this->input->post('callsign')); }; ?>" required>
                   <small id="callsign_info" class="badge badge-secondary"></small> <a id="lotw_link"><small id="lotw_info" class="badge badge-success"></small></a>
                 </div>
                 <div class="form-group col-md-3 align-self-center">