I'm just now getting time to circle back to this. Thanks for asking, KevinC.
I ran a conventional discovery between 860 and 960 MHz and got 19 hits. 5 of them being frequencies unknown to my scanner. I did not hear any audio or voice traffic during discovery session. Just static. The 5 unknown frequencies were shorter transmissions. All of the known frequencies timed out at 30 sec, which is what I had the scanner set at to move onto the next frequency. I'm not entirely sure what that means, but it is a pattern that I noticed when reviewing the file.
This is what I picked up.