How To Choose A Wireless Interpretation System For Large Venues

August 12, 2025

Big venues, big audience… bigger language barrier?

When you are planning an international event, conference, or large-scale seminar, you can’t afford communication slip-ups.

Everyone needs to understand what’s being said, clearly, instantly, and without wires getting in the way. This is where wireless interpretation systems do their thing.

But with so many options out there (RF? IR? What does that even mean?), How do you pick the right one for your event?

Let’s dive into what matters when choosing a wireless interpretation system that works, even in the busiest, noisiest venues.

What Is A Wireless Interpretation System?

Interpretation systems are essential for live translations at multilingual events. A wireless interpretation system lets interpreters deliver real-time translations to an audience. Attendees wear headsets or earphones and select their preferred language channel. The interpreted speech is sent wirelessly from the interpreter’s booth to each listener. These systems are essential for:

International conferences.
Multi-language conventions.
Political or community meetings.
Press briefings.
Guided tours or panel discussions.

The system usually includes:

Interpreter booths (like Bosch soundproof booths).
Interpreter consoles.
Wireless transmitters (IR or RF).
Radiators (for IR systems).
Delegate receivers and headsets.
Microphones and audio feeds.

Overview Of Wireless Technologies

There are two main types of technologies used for wireless simultaneous interpretation: RF and IR. Let’s explain how radio frequency (RF) and infrared (IR) systems work, and what makes each suitable for certain types of events.

Radio frequency (RF) Interpretation Equipment

RF systems use radio waves to transmit audio. They are widely used globally and come in analog or digital formats.

Analog RF Systems

Commonly operate in the 72-76 MHz and 216 MHz bands.
Ideal for large indoor/outdoor venues.
Long battery life and better range.
Can support up to 8 language channels, depending on the transmitter.
Great for mobile setups or complex venues.

Digital RF Systems

Use the 2.4 GHz band with frequency-hopping tech.
Better suited for environments with interference or when portability and aesthetics matter.
Less common but useful for two-way communications or where analog FM is not ideal.

Portable RF Systems

Known as “portable FM systems”.
Easy to set up.
Ideal for tours or breakout sessions.

Stationary RF Systems

Operated by trained AV technicians.
Support greater distance & control.
Suitable for high-stakes conferences.

Infrared (IR) Interpretation Equipment

IR systems use light waves and are best for high-security, indoor events. These systems transmit audio through infrared light. They require a direct line of sight between the radiator and the receiver.

Analog IR

Rarely recommended for rentals.
Suitable only for stable, permanent installations.

Digital IR

Preferred for modern events.
Higher security (signal stays within the room).
Great audio quality.
Best for single-room setups.

General Components

Multi-channel IR transmitter.
Radiator panels.
Interpreter consoles and booths.
IR receivers for attendees.

IR Vs RF: Choosing The Right Tech For Your Venue

Both IR and RF systems serve unique purposes depending on your venue type and event style. This helps you choose between radio frequency and infrared technologies. Each system offers unique advantages depending on your venue setup & audience needs.

Radio Frequency (RF) Systems

RF systems transmit via radio waves, much like a radio station. These are widely used and great for large or multi-room venues.

Advantages

Covers a wider area.
Works through walls.
Suitable for both indoor and outdoor use.
Portable versions available (ideal for tours).

Disadvantages

Can face interference from Wi-Fi, radios, or other RF signals.
Less secure unless encrypted.

Best For

Trade shows.
Outdoor tours or mobile setups.
Conferences in complex venues.

Infrared (IR) Systems

IR systems use light (invisible infrared waves) to transmit sound.

Advantages

Very secure – signal stays inside the room.
Not affected by RF interference.
Clean, high-quality audio.

Disadvantages

Require direct line-of-sight.
Obstructions like walls or large objects.
Crowds can block signals.
Does not work outdoors in direct sunlight.

Best For

Confidential government meetings.
Single-room conferences.
Events where eavesdropping is a concern.

Digital Vs Analog: Why Digital Wins

When it comes to sound quality and reliability, digital systems are the modern standard. Digital interpretation systems offer clear, reliable sound and advanced features. Learn why digital is the preferred choice for large events.

Most modern systems are digital for good reason. Compared to analog systems, digital systems:

Deliver clearer, high-fidelity audio.
They are less prone to interference.
Offer encrypted transmission.
Support more language channels.

While analog can be used for basic setups, we strongly recommend digital systems for large venues.

Key Equipment To Look For When Choosing Wireless Interpretation

Good equipment makes the difference between a smooth event and a technical disaster. Each component in your interpretation system plays a role. This section breaks down the must-have gear for large events.

1. Interpreter Booths

Professional interpreter booths (like Bosch booths) are a must for simultaneous interpretation. They:

Are soundproof.
Let interpreters focus without distraction.
Keep the event sound clean and organised.

Booths can be tabletop or full-size, depending on space and budget.

2. Interpreter Consoles

Interpreters need consoles with:

Volume and channel control.
Relay mode (to interpret from another interpreter’s translation).
Mute or “cough” buttons.

3. Transmitters & Radiators

IR systems need radiators to distribute sound. Make sure you have enough radiators for full-room coverage. RF systems need transmitters (stationary or portable) matched to the number of channels.

4. Delegate Receivers & Headsets

These should be:

Lightweight and easy to use.
Show battery and channel info.
Comfortable for long wear.

5. Microphones And Audio Feeds

Quality microphones ensure a clean floor feed (source language). All speakers must use microphones to maintain clarity.

6. On-Site Technicians

Large venues should never run without AV technicians. They:

Set up and test equipment.
Handle live issues.
Manage channels and interpreter booths.

Things To Consider When Planning

Planning ahead helps avoid common pitfalls during your event.

Audience Size And Language Count

How many people need headsets?
How many languages will be interpreted?
Each language needs its own channel and interpreter team.

Venue Layout

Are there walls, breakout rooms, or pillars?
RF may be better for complex spaces.

Security Level

IR systems are ideal for confidential or private content.

Mobility Needs

Tours or outdoor events? Use portable RF systems.

AV Coordination

AV teams need to work closely with interpretation providers.
A site survey and rehearsal are strongly recommended.

Rental Vs Purchase: What’s Better?

Not every business needs to invest in permanent systems. Renting is often smarter.

Renting is ideal for most UK businesses:

No storage or maintenance costs.
Access to the latest tech.
Comes with trained support staff.

Buying only makes sense if you run regular, multilingual events.

Final Checklist Before You Decide

This quick checklist ensures you’ve covered all the essentials before choosing your interpretation system.

How many languages and interpreters do you need?
Is your venue one large room or many?
Is your event confidential?
Will your attendees move around?
Have you planned time for testing and setup?
Do you need booths, technicians, and extra receivers?

Final Thoughts

Clear communication across languages starts with the right equipment. The right wireless interpretation system can make or break your event. From smooth international meetings to lively multilingual tours, the right tech ensures everyone is heard and understood.

Whether you’re planning a hybrid seminar or a global conference, don’t leave your interpretation needs to chance. Consider venue size, mobility, audio quality, and tech support to make the best choice.

We at EMS Communications offer professional wireless interpretation systems for large events across the UK. From Bosch interpretation translation equipment to wireless microphones, our experts will help you deliver a seamless multilingual experience.