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Wi-Fi at Events | Check your signal

Event Connectivity

Why Mobile Coverage Alone Is Not Enough Anymore

With more events coming onto our platform - and the event diary becoming ever more competitive - organisers can no longer afford to neglect the communication needs of their team, exhibitors, suppliers, sponsors or visitors.

Connectivity is no longer a “nice to have”. It is now core event infrastructure.

Many organisers still assume that the existing mobile infrastructure provided by the major UK networks - EE, Vodafone, O2 and Three - will be sufficient for their event. Unfortunately, this is a risky assumption.

Coverage Is Not the Same as Capacity

UK mobile coverage has improved significantly in recent years. Ofcom’s Connected Nations 2025 report shows that 4G and 5G coverage is now available across most of the UK landmass, particularly outdoors. However, Ofcom is very clear on one crucial point: coverage maps do not measure congestion or performance under load.

Mobile masts are designed to serve a normal, steady population, not 5,000–10,000 people (or more) arriving at the same location for a short period of time. When that happens, networks can become saturated very quickly - even where signal bars appear strong.

Ofcom’s guidance explicitly states that real‑world performance is affected by congestion, local interference, time of day, and sudden spikes in demand - all of which are common at events.
👉 https://­www.­ofcom.­org.­uk/­phones-and-broadband/­coverage-and-speeds/­connected-nations-20252
👉 https://­www.­ofcom.­org.­uk/­phones-and-broadband/­coverage-and-speeds/­ofcom-checker

Temporary Mobile Masts Help - But Only Up to a Point

Major UK mobile operators now regularly deploy temporary mobile masts (often called Cells on Wheels) at large, high‑profile events such as Glastonbury, Cheltenham, Silverstone and major sporting fixtures.

These deployments do improve capacity, but they come with important limitations:

  • Each operator deploys their own mast
  • Only customers on that network benefit
  • Capacity is still finite
  • Support is prioritised for major national events, not smaller or medium‑scale shows

EE, Vodafone and Virgin Media O2 have all published details in the last few years of their temporary event infrastructure programmes, making it clear that these solutions are targeted and selective:
👉 https://­newsroom.­ee.­co.­uk/­ee-expands-mobile-network-with-temporary-sites-to-give-customers-a-summer-to-remember/
👉 https://­www.­vodafone.­co.­uk/­newscentre/­press-release­/how-cows-support-festivals-and-special-events/
👉 https://­news.­virginmediao2.­co.­uk/­virgin-media-o2-to-enhance-connectivity-at-major-events-and-staycation-destinations-this-summer/

Smaller organisers should never assume this infrastructure will be provided automatically.

5G Is Faster - But It Is Not a Silver Bullet

5G rollout is progressing, and speeds are improving, particularly in urban areas. However, Ofcom’s Mobile Matters research shows that connection reliability still drops in high‑density situations, especially in rural and semi‑rural locations where backhaul capacity is limited.

Faster technology does not remove the fundamental problem of too many users competing for the same resources at the same time.
👉 https://­www.­ofcom.­org.­uk/­siteassets/­resources/­documents/­research-and-data­/telecoms-research/­mobile-matters/­2025/­mobile-matters-2025.pdf

Traders Are Now Heavily Dependent on Connectivity

One of the biggest changes over the past few years has been the explosion in mobile card payments.

The majority of traders - particularly small and emerging businesses - now rely on:

  • smartphones
  • mobile PDQ devices
  • app‑based payment systems

Most of these still rely on mobile data or Wi‑Fi connectivity.

As of March 2026, UK regulators allow higher contactless limits, and mobile wallet payments (Apple Pay, Google Pay) have no fixed upper limit, meaning traders are now processing higher‑value transactions that depend entirely on live connectivity.
👉 https://­www.­ukfinance.­org.­uk/­policy-and-guidance­/guidance/­contactless-cards-information

If connectivity fails, traders are no longer losing “a few sales” — they may lose thousands of pounds in a single day.

When Connectivity Fails, Everything Fails

I have attended many events — rural and urban — where connectivity has been overlooked with disastrous consequences.

When networks fail:

  • traders cannot take payments
  • ticket scanners stop working
  • event apps and digital maps become useless
  • staff cannot communicate effectively
  • suppliers and contractors cannot respond to issues
  • press and media cannot post or report live
  • sponsors lose visibility and confidence
  • even on‑site ATMs may stop working

Handheld radios are not a substitute for modern communication. They do not replace the ability to share images, access systems, update data or coordinate in real time.

In one well‑known rural event I attended, organisers chose to cut costs by not bringing in temporary connectivity. Traders lost thousands in sales, visitors were frustrated, the press left early, and sponsors were furious. The reputational damage lasted far longer than the event itself.  Julie Ellington, Event Owl Founder

Wi‑Fi Is Becoming Essential Event Infrastructure

Ofcom and industry bodies now recognise that Wi‑Fi is the only scalable solution for high‑density environments. Recent regulatory moves to expand Wi‑Fi capacity (including Wi‑Fi 6E and future Wi‑Fi 7) are specifically aimed at relieving congestion where mobile networks struggle.

For events, a hybrid approach is now best practice:

  • mobile networks for general coverage
  • on‑site Wi‑Fi for traders, staff, suppliers and core systems

👉 https://www.­wi-fi.org­/news-events/­newsroom/­wi-fi-alliance-applauds-uk-ofcoms-proposal-expand-6-ghz-wi-fi-access [wi-fi.org]

The Bottom Line

However small the event, organisers must now assess communications infrastructure with the same seriousness as:

  • crowd flow
  • vehicle access
  • power supply
  • safety planning

Traders, sponsors and suppliers are increasingly making decisions based on whether an event can support modern, connected trading.

Connectivity does not need to be perfect — but it must be planned, tested and communicated honestly.

Simple Event Connectivity Checklist

✅ 1. Test the site in advance
Visit the venue and check mobile signal on multiple networks (4G/5G). Don’t rely on one phone.

✅ 2. Don’t trust coverage maps alone
Coverage v capacity. Assume performance will drop when the crowds arrive.

✅ 3. Ask the mobile networks
If your event is large, ask operators whether temporary support is planned. Don’t assume.

✅ 4. Plan on‑site Wi‑Fi if signals are weak
Especially for traders, staff, ticketing, and suppliers.

✅ 5. Assume traders need connectivity to trade
Most now rely on mobile card payments. Connectivity failure = lost income.

✅ 6. Check cash backup options
If connectivity fails, where is the nearest working ATM?

✅ 7. Plan staff communication
What happens if mobiles fail? Radios help, but they are not enough on their own.

✅ 8. Think about digital content
If you use apps, QR codes, digital maps or programmes, can visitors actually access them?

✅ 9. Identify black spots on site
Even town centres have dead zones. Avoid placing key trader areas there.

✅ 10. Be honest with traders
If Wi‑Fi is available, say so. If not, be clear. Trust is built on transparency.