Does anyone have information on TFD's "University 1" unit?
Yep.
This. It's not really a TFD unit, obviously. But comes up on TFD's radio channels.
Also, on TFD's incident feed on the PulsePoint smartphone app, you'll see them as unit "UAEMS1". So they have their own CAD designator at TFD, although they aren't actually voice-dispatched by TFD.
And, I have received reports that what sounds like UA EMS operations can sometimes be heard on talkgroup 20103 on PCWIN, but I haven't yet been able to verify it so I haven't posted it on the PCWIN page on RR. It seems like there is a lot of talkgroups on PCWIN that haven't been identified on RR yet.
(Total aside, if you don't have the PulsePoint app, you need it. It can alert you on your smartphone the second a structure fire is dispatched and it's time to turn on your scanner, for example. Incidents for TFD, South Tucson Fire, Picture Rocks, Three Points, Avra Valley, Mountain Vista and Golder Ranch are on a feed called "Greater Tucson," and incidents for Rural/Metro are on a feed called "Tucson Rural/Metro." Note that the agencies dispatched by Drexel Heights aren't on PulsePoint, and that the Greater Tucson and Tucson Rural/Metro feeds omit routine medical calls).
Dan