UPSAT FSK Frame Acquisition satnogs_upsat_fsk_frame_acquisition satnogs import satnogs satnogs.upsat_fsk_frame_acquisition($preamble, $sync_word, $whitening, $manchester) Frame Preamble preamble raw Synchronization Word sync_word raw Whitening whitening enum No False Yes True Use Manchester Coding manchester enum No False Yes True in float pdu message