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Festival WiFi - not just an advantage for the festival-goer

By Richard Ellor
23 June 2017
5 min read
Festival WiFi - not just an advantage for the festival-goer
Event network planner

Festival WiFi capacity and sponsor value calculator

Size outdoor APs, backhaul, addressing and PoE for a festival site, and estimate what the captive portal is worth to sponsors.

Festival type
Site and crowd
50,000
2,00050,000100,000
180,000 m²
1 ha15 ha30 ha

18.0 hectares (44.5 acres) of covered ground.

140
10120250
1.8

Phones, second phones, tablets and wearables that can join WiFi.

30%
10%40%70%

Share of attendees who join the WiFi rather than stay on mobile data. Weak cellular coverage pushes this up.

Per-user speed target

HD social video, video calls and fast cashless sync.

Primary backhaul
Outdoor APs
180
Driven by capacity. IP67, dual 5 GHz or tri-band.
Backhaul to provision
6.6 Gbps
Includes 20% burst headroom.
WiFi devices at peak
27,000
1,350 moving data at once.
Indicative sponsor value
£1,125
~7,500 marketing opt-ins.

Backhaul and addressing

Achievable
Uplink
6.6 Gbps

2 × 10 Gbps circuit on diverse routes.

Addressing
9 × /20 zone subnets (4,094 hosts each)

33,750 addresses from RFC 1918 space (for example 10.100.0.0/16), 20-30 minute leases.

Switching and power
12 PoE+ switches

About 6,000 W total. Tri-band WiFi 7 APs may need 802.3bt.

Outdoor RF design

  • 180 APs for capacity (150 clients each) against 150 for coverage (1,200 m² each). Plan on the higher figure, then add APs where crowds pack in front of stages.
  • Use 60-90° sector antennas on trusses or towers at 4.5-6 m, aimed down into the crowd, so bodies absorb signal and cells stay small.
  • Run 20 MHz channels on 5 GHz: up to 19 non-overlapping channels in the UK and EU (25 in the US), most of them DFS. Disable data rates below 12-18 Mbps so distant clients do not waste airtime.
  • In the UK and EU, 6 GHz is licence-exempt for indoor (LPI) use, and only the low-power VLP class is allowed outdoors, so outdoor capacity comes from 5 GHz. The US allows standard-power 6 GHz outdoors under AFC.
Assumptions and method
  • ·WiFi devices = attendance × devices per attendee × take-up = 50,000 × 1.8 × 30% = 27,000. 5% of those move data at the same instant.
  • ·Backhaul = (active devices × 3.5 Mbps + stalls × 5 Mbps + 80 Mbps operations) × 1.2 = 6,606 Mbps.
  • ·APs = max(devices ÷ 150, area ÷ 1,200 m², 4). Switches carry 16 APs each at 30 W per port plus 50 W per switch.
  • ·Addresses = devices × 1.25 for lease churn, split into /20 zone subnets once one zone would exceed 4,094 hosts.
  • ·Sponsor value assumes 3 portal views per WiFi user, £25 CPM and 50% marketing opt-in. These vary widely by audience and sponsor; use your own rate card. Link capacities: fibre 10 Gbps, microwave 2 Gbps, satellite or 5G ~250 Mbps per unit.

Want this plan checked by an event WiFi specialist?

Optional: Purple can review your RF design, portal sponsorship and crowd analytics for the site.

Useful? Link to this tool

Well, that's Glastonbury festival over and done with for another year, and I'm sure many of your social media news feeds have been swamped with selfies, videos and 'wish you were here' snaps. But this isn't anything out of the ordinary. The way festival-goers enjoy and engage with global music festivals has certainly evolved, with most people morphing into full-time photographers as soon as they adorn their wristbands and step foot on-site. People love sharing their every move and flaunting their festival experience to friends, family and followers.

Luckily, festival WiFi has become a logical connectivity solution for many organizers, meaning revelers no longer have to rely on lagging, overloaded 3G and 4G networks to share their favorite memories. Remember Dolly, Daisy and Molly? Maybe you don't, but this high-speed herd of artificial cows made the headlines back in 2014 by delivering WiFi connectivity to the Glastonbury site. Nowadays, a growing number of popular global events such as Coachella and Benicàssim have followed suit and started to offer WiFi at festivals, with some even charging fees for unlimited access.

Connectivity is invaluable for our tech-savvy generation of festival-goers. People like to have peace of mind that they can keep in touch with friends, upload their filtered photos, boast about the best acts on Facebook, stream on Snapchat, and tweet about the delightful on-site restrooms, but it's also a huge blessing for those behind the scenes. Arguably, the organizers benefit the most from on-site festival WiFi as it provides them with on-the-ground coverage and an army of instant promoters. But how else can organizers benefit from offering WiFi at festivals?

Capture more than memories

Festival coordinators are starting to acknowledge the fact that connectivity is an expectation rather than a perk for the modern-day festival-goer. Offering WiFi at festivals keeps the masses satisfied, but why shouldn't organizers also reap the rewards? Festivals can implement a WiFi and analytics platform that delivers seamless connectivity but also captures data about every individual that logs on. Gaining access to email addresses, name, age, interests, gender and where people have traveled from is highly valuable for organizers, particularly during the festival planning stage. This data can be used to consider what acts, stalls, marketing and merchandise to have in the future according to age and interests, as well as providing the team with a wealth of CRM data for communication purposes.

A very appy experience

Giving visitors access to WiFi at festivals ensures they can download and use any mobile apps that have been developed for the festival period to improve the visitor experience. Digital applications often replace the paper versions of site maps and artist listings, ensuring important information is all accessible in one place. Planners could consider advertising the app download link on the initial WiFi login page and could feature it on any on-site advertisements promoting the WiFi network. Apps can also be used to push out additional purchases, including VIP upgrades and alcohol packages.

Secrets exposed

Gossip and secrets - we all love to indulge from time to time, don't we? Well, let those individuals who are using your WiFi find out about secret gigs and last-minute artist announcements via social media or email. It helps to build suspense, create a buzz, and makes people feel like they are a real part of the festival experience. Also, the fact that it is "secret" can often lead to even more posting, sharing, snapping, and "likes" on social media. A real win-win for both the organizers and the WiFi users.

Oh, so organized

Festival WiFi can actually help management teams allocate staff, reposition signage and keep festival-goers safe. Through using analytics software, location and presence data can be exploited to monitor real-time activity across the entire festival site. Coordinators can easily identify where large lines may be forming for bars, food outlets and stages, then put staff in place to deal with demand. If one bar is extremely overcrowded and another bar has received limited visitors then signage could be implemented to redirect people to less busy areas. Likewise, if one of the stages at the festival isn't receiving as much traction as expected then a text or alert could be sent out to people informing them about artists performing at that stage.

Real-time rewards

Use WiFi to obtain visitor data and distribute relevant, triggered promotions. Whether that is sending a reminder about the VIP beauty facilities on-site to all women, or sending an exclusive offer to all demographics about rain boots and ponchos when it's raining, organizers have the invaluable opportunity to make a significant return from their WiFi investment. And let's be honest - who doesn't like receiving a discount or being informed about something they may actively need?

Here's to next year

If the photos are anything to go by, then most attendees enjoy every second of their festival experience. Harness this excitement and positivity by asking them to review your event shortly after they leave. It's a simple task when using a WiFi and analytics platform, as coordinators can capture CRM data and send automated review requests to every individual. It's particularly useful for younger festivals that don't have a mass following and need to build up a good reputation. Organizers can also promote next year's dates, artists, and early bird tickets to existing customers.

So, as we've identified, it's not just fun and games for the people attending music festivals. Those in charge of pulling together a festival, however big or small, have an excellent opportunity to take their marketing and visitor engagement to a whole new level and grow profits through implementing WiFi at their events.

Frequently asked questions

How do you calculate WiFi bandwidth for a music festival or outdoor event?

Festival bandwidth sizing starts by multiplying peak attendance by the device concurrency ratio (typically 1.5 to 1.9 devices per attendee). In open outdoor grounds, apply a 45% active transmission concurrency factor with 2.5 Mbps to 5 Mbps allocated per active device. In addition, reserve dedicated bandwidth (minimum 5 Mbps per stall) for cashless food and merchandise payment terminals.

How many access points are needed for outdoor festival WiFi coverage?

High-density festival environments require IP67 weather-rated tri-band enterprise access points equipped with 60° to 90° directional sector antennas. A standard rule of thumb is deploying one access point per 180 to 220 concurrent devices in open fields or every 1,200 square metres, mounted on stage trusses, audio delay towers, or temporary light masts at heights between 4.5m and 6.0m.

How do engineers manage RF interference and channel overlap across large festival grounds?

Engineers lock 5 GHz and 6 GHz channels to 20 MHz widths to maximize non-overlapping spectrum channels, disable legacy 2.4 GHz radios on 70% of access points, disable low basic data rates below 18 Mbps to trim cell boundaries, and coordinate RF channels with stage wireless microphones, in-ear monitors, and broadcast satellite uplinks.

How can festival organizers monetize temporary guest WiFi networks?

Organizers monetize festival WiFi by selling full-screen splash page takeovers to headline sponsors, collecting opt-in marketing permissions from connecting attendees for post-event ticket presales, distributing location-triggered sponsor discount coupons, and presenting brief sponsor feedback surveys prior to network authorization.

How should cashless point-of-sale terminals and production staff be secured at festivals?

Cashless bar payment terminals, ticket scanners, and production staff must never share an open public SSID. They should connect to a dedicated WPA3-Enterprise or Identity PSK VLAN with strict Layer 2 peer isolation, PCI-DSS security compliance controls, and DSCP EF priority QoS queuing to prevent transaction delays during peak headline sets.

Why do festival networks require short DHCP lease durations?

Because tens of thousands of mobile attendees move continuously across festival stages and camping areas, default 24-hour DHCP lease times exhaust available IP pools within hours. Configuring a 20 to 30 minute lease time ensures inactive IP addresses recycle back into the pool rapidly.

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