$radiodev_counter = 0;
     $radio = array();
     $radio['antenna_angle'] = 90;
     $radio['antenna_gain'] = 14;
     $updated = $gapi->updateRadio($device_id, $radiodev_counter, $radio);
     if ($updated) {
         echo "Radio <strong>{$radiodev_counter}</strong> at device <strong>{$device_id}</strong> was updated correctly.<br />\n<br />\n";
     } else {
         echo "There was an error updating the device.<br />\n";
         echo $gapi->getErrorsStr();
     }
     break;
 case 'delete':
     $device_id = 19534;
     $radiodev_counter = 0;
     $removed = $gapi->removeRadio($device_id, $radiodev_counter);
     if ($removed) {
         echo "Radio <strong>{$radiodev_counter}</strong> at device <strong>{$device_id}</strong> removed correctly.<br />\n<br />\n";
     } else {
         echo "There was an error deleting the radio.<br />\n";
         echo $gapi->getErrorsStr();
     }
     break;
 case 'nearest':
     $node_id = 14095;
     $nearest = $gapi->nearestRadio($node_id);
     if ($nearest) {
         if ($nearest->radios) {
             $radios = $nearest->radios;
             echo "<br />\n";
             echo "Found some radios:\n";