The duplex gap: The crux of the matter with the number of channels

A WIDESPREAD ASSUMPTION ABOUT TOUR GUIDE SYSTEMS

There is a widespread assumption in the world of tour guide systems: the more transmission channels a system offers, the better its performance. However, this idea does not always correspond to reality. Especially in tourist hotspots, where many different radio technologies compete in a confined space, more channels can also mean more problems. In this article, we take a closer look at why this is the case and how you can still achieve optimum results with the right technolog

A LOOK AT THE FREQUENCY DISTRIBUTION IN GERMANY

In Germany, the available transmission frequencies are strictly regulated by the Federal Network Agency. Tour guide systems generally operate in the 800 MHz range, a frequency band that is also used for mobile phone services and wireless microphones. Large parts of these frequencies have already been allocated to mobile phone providers, leaving limited space for other applications such as tour guide systems. This leads to increased competition for the available frequencies, especially in densely populated or heavily frequented areas.

FREQUENQY RANGES IN THE EU AND THEIR CHALLENGES

At the European level, a 2 MHz frequency range is provided for tour guide systems. This range can be divided differently: while some providers use 16 channels, others split this range into up to 100 channels. At first glance, it may seem tempting to use as many channels as possible, but this creates a problem: each additional channel reduces the bandwidth available to each individual channel, which can lead to a deterioration in signal quality. It’s like dividing a cake into more and more but smaller pieces – the total amount remains the same, but everyone gets less.

OUR SOLUTION: TOM-AUDIO TG-200 

To meet the challenges described above, we at BMS Audio have developed the TOM-Audio TG-200. This system not only utilizes the German frequency range in the duplex gap, but also the EU-wide 2 MHz range. This dual frequency usage allows our system to flexibly switch between ranges to minimize interference and ensure clear and reliable transmission, even in densely populated areas or busy tourist hotspots.

CONCLUSION

The number of available channels alone is not decisive for the quality of a tour guide system. Much more important is the efficient utilization of the available frequencies and the adaptability of the system to different environments. With the TOM-Audio TG-200, we have developed a solution that is not only technologically state-of-the-art but also optimally fulfills the specific requirements of locations with high-frequency usage.

If you would like to find out more about the TOM-Audio TG-200 and its advantages, we will be happy to provide you with detailed advice. Let us convince you of the quality and flexibility of our systems and ensure that your message is heard clearly, even in the loudest and busiest places.

FINAL WORD:

Place your trust in innovative technology that offers you added value not only in theory but above all in practice. Because at the end of the day, all that matters is that your guests and audience understand every word – no matter where you are.

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