At multilingual events, such as conventions, conferences, or international meetings, receivers are a key component in ensuring that the audience can hear the interpretation in real time. These devices allow attendees to select the language they wish to hear through headphones.

In this article, we explain the different types of conference receivers and their main differences.

 

What is a conference receiver?

A receiver is a portable audio device that allows attendees to listen to the speaker or interpreters at multilingual events.

It is part of the basic interpretation system, along with:

  • Interpretation booths
  • Interpreter desks
  • Signal transmitters
  • Headphones
  • Central Control Unit (CCU)
  • Stationary infrared radiators (only if infrared receivers are used) / Transmitters

Conference receivers are designed to allow attendees to select different languages during a multilingual event. These languages are transmitted via separate audio channels.

 

Types of Conference Receivers

  • Infrared Receivers

Infrared receivers are one of the most widely used systems at conventions, conferences, and professional events that require simultaneous interpretation. This system operates using an infrared light signal. Therefore, it requires a line of sight with the transmitter; that is, the receivers must be within the direct range of the infrared transmitter without any physical obstacles. Additionally, they are not susceptible to radio interference, since, by not using radio waves, this system is immune to external interference from other electronic devices or wireless networks.

The advantages of these devices are that they offer high signal security. The infrared signal does not pass through walls, preventing the audio from being picked up outside the venue. This makes it ideal for events where confidentiality is important. Furthermore, there is no external interference because, by not relying on radio frequencies, the system provides stable, uninterrupted transmission, even in technologically dense environments.

However, this system depends on the proper installation of the transmitters. Infrared transmitters must be strategically placed to cover the entire room, as poor placement can result in areas with no coverage or a weak signal. Moreover, they have limitations outdoors or in direct sunlight. Intense sunlight can interfere with the infrared signal.

 

 

  • Radiofrequency Receivers

Radiofrequency receivers are a highly versatile option for simultaneous interpretation systems. Unlike infrared systems, these devices operate using radio waves, which allows for greater flexibility in terms of coverage and environmental conditions. Audio is typically transmitted on UHF or VHF bands, providing broad and stable coverage when the system is properly configured. Consequently, the signal can cover longer distances and penetrate physical obstacles, making it ideal for large or complex spaces.

This type of system can operate both indoors and outdoors. Furthermore, it provides greater mobility for attendees, as users can move freely without losing the signal. This type of receiver also has fewer physical limitations; the signal can pass through walls, structures, and other obstacles, facilitating coverage in complex spaces.

On the other hand, interference may occur if the system is not properly configured. Since it uses radio frequencies, interference with other electronic devices or wireless systems can occur if proper technical planning is not carried out. It is also a system that is more accessible to third parties; the RF signal can pass through walls, meaning that, without additional measures, it could be picked up outside the event space.

 

 

  • Digital receivers (apps or hybrid systems)

In recent years, events have evolved toward more flexible and tech-driven solutions, incorporating digital systems that allow attendees to access content without the need for traditional physical equipment. These digital receivers typically take the form of mobile apps or platforms integrated into hybrid or virtual event ecosystems.

Digital receivers operate via local Wi-Fi networks, mobile data, or private networks configured specifically for the event. They are used on smartphones, tablets, or any digital device. Similarly, they can be integrated with event management platforms, enabling more features such as an agenda, networking, or real-time interaction. They can also connect to streaming systems for live or on-demand events.

Thanks to this system, there is no longer a need to distribute, collect, and maintain physical equipment. On the one hand, it offers a more modern and interactive user experience and is ideal for hybrid or virtual events, as it facilitates remote participation. On the other hand, the digital system relies on a stable, high-quality internet connection, and there is a risk of network congestion if it is not properly scaled. There is also the possibility of compatibility issues between devices or operating systems, and users are required to have a certain level of technological familiarity. Additionally, it results in battery drain on attendees’ personal devices.

 

Common Mistakes When Using Conference Receivers

  • Not Allocating Enough Devices
    One of the most common mistakes is underestimating the number of receivers needed for the event. It is important to account not only for the number of confirmed attendees but also for potential last-minute increases, technical staff, speakers, or additional guests. It is recommended to have an extra supply of devices on hand.
  • Failing to test before the event
    The absence of prior testing can lead to technical issues during the conference, such as signal failures, incompatibilities, or defective devices. Conducting a full system test allows you to detect errors, adjust frequencies, verify audio quality, and ensure everything is working properly before the audience arrives.
  • Poor distribution of the transmission system
    Poor installation of transmitters can result in areas with no coverage or a weak signal. This directly affects the user experience, as attendees may miss important parts of the conference. It is essential to assess the space and strategically place transmitters to ensure uniform coverage throughout the room or venue.
  • Failing to explain to customers or the public how to use the receivers
    Although receivers are generally simple devices, not all users are familiar with how they work. A lack of clear instructions can lead to confusion, delays, or incorrect use of the equipment. It is advisable to provide a brief explanation at the start of the event or to include basic instructions.
  • Interference due to poor technical planning
    Failing to properly coordinate frequencies or ignoring potential sources of interference (other wireless equipment, networks, nearby electronic devices) can cause dropouts, static, or signal loss. Good technical planning includes analyzing the environment, selecting appropriate frequencies, and, if necessary, using professional equipment to minimize these risks.

 

 

Conference receivers are an essential part of any multilingual event. Choosing the right system ensures a smooth and professional experience for all attendees. Partnering with a company that specializes in interpretation and audiovisual technical support is key to ensuring the event’s success. At Abalingua, we are developing a new digital radiofrequency system that offers a more stable, clear, and professional audio experience. Thanks to reduced interference and its wide range, this system significantly improves listening quality at conferences and multilingual events.

 

Do you need interpretation receivers for your event?
We offer comprehensive solutions for simultaneous interpretation, booths, and audiovisual technical equipment tailored to any type of conference or international event.