I seem to get the best quality echo audio if I transmit on 435170 (at
the satellite).
The downlink doesn't seem to make much difference either for the audio
or the telemetry decode but I use 145978 (at the satellite).
I have not had a QSO but there are no others in Hawaii active now so I
have only a short window to the western US.
73, Tom, NH6Y (BL10ts)