Advanced Filters
lang('gen_hamradio_propagation_AS'),
'AUR' => lang('gen_hamradio_propagation_AUR'),
'AUE' => lang('gen_hamradio_propagation_AUE'),
'BS' => lang('gen_hamradio_propagation_BS'),
'ECH' => lang('gen_hamradio_propagation_ECH'),
'EME' => lang('gen_hamradio_propagation_EME'),
'ES' => lang('gen_hamradio_propagation_ES'),
'FAI' => lang('gen_hamradio_propagation_FAI'),
'F2' => lang('gen_hamradio_propagation_F2'),
'INTERNET' => lang('gen_hamradio_propagation_INTERNET'),
'ION' => lang('gen_hamradio_propagation_ION'),
'IRL' => lang('gen_hamradio_propagation_IRL'),
'MS' => lang('gen_hamradio_propagation_MS'),
'RPT' => lang('gen_hamradio_propagation_RPT'),
'RS' => lang('gen_hamradio_propagation_RS'),
'SAT' => lang('gen_hamradio_propagation_SAT'),
'TEP' => lang('gen_hamradio_propagation_TEP'),
'TR' => lang('gen_hamradio_propagation_TR')];
asort($prop_modes);
?>