https://solaristechservices.com/cell-on-wheels-rental/
Very cool mobile towers they would still need to be on Firstnet or similar to keep the rabble from overwhelming the mobile tower as well. Tens of thousands will always be to much for a local tower even augmented. Every year twice a year in Addison 100,000+ people pack into Addison circle a one square mile area for Oktoberfest and then again for Kaboom town July 3rd. Cell networks just die they bring portable towers and mini towers on streetlamp sized poles same same you might get a text an hour after it is sent cells forget about it. We use FMRS/GPRS radios or 2 meter and 70cm handhelds to coordinate our crews rally points. 100mw green astronomy grade laser pointers work great at night for Morse code sky beacons you can see them from ten miles on a clear night pointed straight up. Flash RP in code. It’s beyond the pale that SS didn’t have a unified bridge radio freq for watch commanders.