@ChuckMcManis Thanks — this is an excellent point. Am still learning how the TinySA-Ultra is different compared to previous SA (Agilent 8561E). Might setup a RF sweeper (continuous) and reverse sweep it against the TinySA-Ultra to see how it behaves with short-presence signals. Have both continuous and stepped sweepers to experiment with. Maybe two sweepers in the scanned band at once? (Have not done that before.) Lots to learn and more RF fun ahead! #SATSAGEN #PlutoSDR #Wavetek2001 #HamRadio