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Thank you for keeping SAQ on the air! I just watched the video of the Christmas 2018 transmission. At about 33 to 34 minuets into the video, the continuous tape loop that sends the “VVV DE SAQ” is shown. I would have expected the tape to be punched in the 2-level “Wheatstone” system, but it is a 5-level, teletypewriter tape. The tape reader is quite large. Is the tape reader doing a 5-level to CW conversion?
Did outgoing messages typically come into SAQ via 5-bit teletypewriter signal and then get converter to CW to be sent out over the alternator transmitter?