As
@a417 said, they do not allow scanners in the air show grounds and I have been denied entry with mine at the last show, and from years past it is difficult to see the aircraft from the parking area. Hopefully your location to view the show is better.
That said, the only mystery frequency will be the Air Boss however they previously used 126.250, the aircraft performing are in the RR database for the most part and at this old post below.
Active control channel is 406.7625 for anyone wanting to listen to air show traffic on the SJAFB trunking system.
forums.radioreference.com
Also, for $3 it is a good idea to get the March 2023 issue of The Spectrum Monitor, the 2023 Air Show Edition packed with a bunch of info and freqs.
Mar 2023 Issue by itself
www.thespectrummonitor.com
As for non-air operations, here is what was used in 2019;
Alpha 1 - EMS Ops
Alpha 2 - SHP Traffic Posts
Alpha 3 - Inside Ops
Alpha 4 - Command / Fire Ops
Bravo 1 - Traffic Ops
The base talkgroups were;
8208 Event ops
6480 Encrypted and clear sounds like security forces
6448 Encrypted and clear sounds like security forces
240 Public Affairs/Organizers of WOW (call sign PA#)
5008 Comm tech setting up PA system
1744 Fire/EMS
12912 AC Maintenance
1872 Trash Crews for event
656 Discussing traffic entering event
304
496
8112
17616