I've tried my IC-9100 a couple of times for DUV decoding and I've had no luck. My first concern is that the USB interface may include filtering that restricts the bandwidth of the receive audio.
Still hoping it mostly due to using an EggBeater with preamp vs a tracking beam, but I thought I would ask. Signals are generally pretty good -- fully quiteing for 4-5 minutes around the point of closest approach.
73, Bob, WB4SON