I just turned on the PSAT digipeater. You will notice that its callsign in this mode is just “PSAT” and not PSAT-1 when it is in SAFE mode. The ALIASes supported are ARISS and APRSAT. The PSK-31 transponder also remains in AUTO mode meaning it will come up whenever there are PSK31 signals on the 28.120 + frequency. Bob, WB4APR