Despite the spread of mobile phones and messaging apps, professional two-way radio remains one of the most important operational tools at large festivals.
Radio enables instant group communication, with separate channels for security, medical services, logistics, backstage, stage technicians and event management.
Mobile networks can become overloaded in large crowds, while a properly designed dedicated radio network operates independently of them. Using it, however, requires an advance protocol, channel allocation and training.
Summary
A dedicated radio network provides channels independent of the mobile network for security, medical and technical teams.

