Event Radios and Communication Systems for Large Events

A medical incident happens in a far corner of the site during a headline set. A gate surges as the doors open and stewards need backup within seconds. A contractor reports a fault on a stage rig before the crowd arrives.

Moments like these are routine at large events, and each one depends on how quickly the right people can reach each other. When a message has to pass through several phone calls before it reaches someone who can act, small delays stack up. At a busy event, those delays affect both safety and the experience of everyone attending.

This is where event radios and wider event communication systems come in. This article covers what they are, how different teams use them, the difference between traditional two-way radios and PoC radios, and what to weigh up when choosing a system for your event.

Why Communication Matters at Large Events

Several teams have to act on the same information at the same time. Security, stewards, medical staff, event managers and logistics crews all make time-sensitive decisions, often spread across a wide site. A shared, instant channel keeps those decisions aligned and shortens response times when something goes wrong.

Without reliable event staff communication, even a minor issue can escalate before the right person hears about it. A slow report from one part of the site can turn a small problem into a safety concern or a visible disruption.

Event organisers should also consider communication planning as part of wider security preparedness. Under Martyn’s Law — the Terrorism (Protection of Premises) Act 2025 — larger premises and qualifying events will need appropriate public protection procedures once the Act’s requirements come into force. These can include arrangements for communicating with people on site during an incident.

For qualifying premises, 200–799 individuals at the busiest times generally falls within the standard tier, while 800 or more generally falls within the enhanced tier. For qualifying events, 800 or more people reasonably expected at the same time is one of the key thresholds. The UK Government currently expects the Act’s requirements to come into force in spring 2027.

Radios alone will not make an event compliant, but reliable staff communication can support the wider procedures an event puts in place.

What Are Event Radios?

Event radios are handheld devices that let staff speak to each other instantly during an event. A user presses a button and talks to one colleague or a whole group at once, with no dialling and no waiting for a call to connect. That immediacy is why operational teams tend to prefer them over mobile phones in busy, noisy environments.

Traditional two-way radios, sometimes described as walkie talkies for events, work on radio frequencies and provide group communication without relying on mobile phone calls. They are common at festivals, sporting events, conferences, trade shows, outdoor public events, concerts and community events.

For smaller events, licence-free two-way radios can provide enough coverage on their own. Larger venues usually need more capable systems to stay reliable across the whole site.

Who Uses Event Radios at Large Events?

Most large events run on several teams working in parallel, and each relies on radio communication in a slightly different way. The common thread is that every team needs to reach the right person quickly, without leaving their position or turning away from the crowd they are managing.

Many events assign each team its own communication group or channel, so routine traffic does not get in the way of urgent messages.

Security Teams

Security teams depend on event radios more than almost any other group. They use them to coordinate patrols, manage crowd movement and call for support the moment an incident starts. Many events run a dedicated security channel so this traffic stays separate from general operations and stays clear when it matters most.

Rugged devices such as the iPTT P400 are designed for demanding conditions like those at large outdoor events, including festivals and concerts.

Traditional Two-Way Radios vs Push-to-Talk over Cellular

The main choice for event communication is between traditional two-way radios and Push-to-Talk over Cellular. Traditional radios work well within a defined site, while PoC uses mobile networks to extend communication across much larger or multi-site events. Plenty of large events use both, with each covering the situations it handles best.

Traditional two-way radios remain effective in many settings. Large events, though, create conditions that a standard radio system can struggle with, including big venues, multiple sites, buildings that block signal, temporary infrastructure and limited radio range.

This is where PoC radios for events have become more popular. Rather than depending on radio frequencies alone, PoC devices use mobile data networks to communicate over much greater distances. Staff can talk across multiple areas, remote locations or even different towns without the range limits of traditional radio.

The two approaches suit different event setups.

Because network capacity can be tested but not guaranteed at very busy sites, some organisers run a hybrid setup: traditional radios for core site teams, and PoC where staff are spread across wider areas or multiple locations.

Common Communication Challenges at Large Events

Large events create communication problems that smaller ones rarely face. Size, layout and temporary infrastructure all work against a signal, and the more teams involved, the more places a message can get lost. Knowing where these gaps tend to appear makes them easier to plan around.

Wide sites and multiple locations can stretch a traditional radio system beyond its range. Buildings, structures and temporary builds can block or weaken a signal in places that worked fine during setup.

When staff fall back on personal mobile phones to fill the gaps, coordination slows down. Calls and messages are one-to-one rather than reaching a whole team at once. Managing several departments across all of this at the same time makes each of these problems harder to handle.

Choosing the Right Communication System for Your Event

The right system depends on how your event actually runs, not on any single feature. Site size, staff numbers, the length and timing of the event, security requirements, how far apart teams are and how many groups need to talk all shape the decision.

Smaller events may only need basic radios, while larger or multi-site operations usually benefit from wider coverage and central oversight.

It is worth weighing up the following:

• Coverage: across the whole site, including structures or separate areas where signal tends to drop
• Ease of use: simple devices matter, since events often rely on temporary or seasonal staff with little training time
• Battery life: enough for a full shift, including build-up, show days and break-down
• Durability: how well devices cope with weather, dust and rough handling outdoors
• Scalability: whether the system can grow for a bigger event or extra sites without a full replacement
• Communication groups: whether you can separate security, medical, stewarding, production, traffic and logistics teams
• Network reliability: which matters most for PoC systems
• Support: the management and help available if something goes wrong on the day

How iPTT Can Support Event Communication

iPTT works with organisations across the UK on Push-to-Talk over Cellular communication, and large events are one of the settings where this can help. For events spread across a wide site, several locations or more than one venue, PoC can support better coordination between teams than mobile phones alone.

If you are reviewing your current setup, iPTT can be a practical starting point for working through what wider-area, group-based communication could look like in practice.

Conclusion

Reliable communication is one of the things that holds a large event together. From security and stewarding to medical, logistics and production, teams that can reach each other instantly are better placed to coordinate, keep people safe and keep the event running.

As events grow in size and complexity, the systems behind that communication matter more, not less. If you have not reviewed how your teams stay connected recently, it is worth checking whether your current approach still fits the way your event runs.