Yeah, I was sending the audio to external programs so I could try to decode them both at once. The ALE log is from Multi-PSK, and I truncated it down to just the calls. I suppose I should include the SINAD, BER, and LQA info as well next time.
I was able demodulate the 110 as well, but as you said, the actual traffic was encrypted. The short preamble on most of the transmissions makes me suspect a system that establishes a session between to stations with 75/long, and then switches to a higher bitrate with short preambles for the duration of the session. The long periods of 2400/short with little bursts of 600/short made me think about sending blocks of data with the receiving station sending ACKs/NAKs.