The arrival of 5G technology in Türkiye is changing more than mobile communications and internet speeds. It also has important implications for the professional event industry, particularly for equipment that relies on radio frequencies.
The 5G Era Has Begun in Türkiye: How Will Wireless Microphones and Professional Event Audio Systems Be Affected?
The arrival of 5G technology in Türkiye is changing more than mobile communications and internet speeds. It also has important implications for the professional event industry, particularly for equipment that relies on radio frequencies.
Wireless handheld microphones, lapel microphones, headset microphones, wireless instrument systems and in-ear monitor systems used at conferences, congresses, concerts, corporate events and live productions all operate within the RF spectrum.
As 5G networks become more widespread, one question is being asked increasingly often by event organisers and technical production companies:
“Will 5G interfere with our wireless microphones?”
The short answer is: 5G itself is not a problem for properly planned professional wireless systems operating within appropriate frequency bands.
However, equipment operating in outdated or unsuitable frequency ranges can face serious interference, reliability and regulatory issues.
What Is the Relationship Between 5G and Wireless Microphones?
Wireless microphone systems transmit audio from the microphone transmitter to the receiver using radio frequency, or RF, signals.
For many years, professional wireless systems have relied heavily on the UHF spectrum because of its favourable propagation characteristics, reliability and suitability for multi-channel professional applications.
The challenge arises because parts of the radio spectrum that were historically available for wireless microphones have gradually been reallocated to mobile telecommunications services.
This process did not begin with 5G.
During the introduction of 4.5G services in Türkiye, substantial parts of the 786–863 MHz range ceased to be appropriate for wireless microphone use. Subsequent regulatory changes also meant that much of the UHF spectrum above 694 MHz could no longer be considered a suitable operating area for professional wireless microphones.
This issue has become even more significant with 5G because the 700 MHz band is one of the principal frequency ranges allocated to mobile operators as part of Türkiye's 5G deployment.
Why Is the 700 MHz Band Important?
The 700 MHz band has an important advantage for mobile communications.
Because it operates at a comparatively low frequency, radio signals can travel over greater distances and penetrate buildings more effectively.
This makes the band particularly valuable for extending 5G coverage.
From the perspective of professional event technology, however, the same characteristics create a potential problem.
An older wireless microphone system operating around the 700 MHz range may now find itself sharing the RF environment with significantly more powerful mobile communication signals.
Possible consequences include:
- Temporary audio interruptions
- RF dropouts
- Noise and interference
- Unexpectedly high RF readings at the receiver
- Fewer usable wireless channels
- Microphones working reliably in one part of a venue but dropping out in another
For older systems operating above 694 MHz, interference may not be the only consideration.
It is also essential to determine whether the frequencies used by the equipment remain compliant with current telecommunications regulations.
Which Frequencies Can Be Used for Wireless Microphones in Türkiye?
Türkiye's telecommunications regulations define several frequency ranges that may be used for wireless microphone applications under specified technical conditions.
Some of the most relevant ranges include:
174–216 MHz – VHF
This range may be used for certain wireless microphone applications.
470–694 MHz – UHF
This remains one of the most important frequency areas for professional wireless microphone systems.
For professional PMSE applications — Programme Making and Special Events — this part of the UHF spectrum is also widely used across Europe.
863–865 MHz – ISM
This range can also be used for certain wireless audio and microphone applications.
However, because only approximately 2 MHz of spectrum is available, its practical capacity can be limited in professional events requiring a large number of simultaneous wireless channels.
There is, however, a very important distinction to make:
Operating between 470 and 694 MHz does not mean that every frequency within that range can automatically be used.
At any given venue, the same spectrum may also contain:
- Television broadcasting signals
- Wireless microphones used by other events
- In-ear monitor systems
- Broadcast production equipment
- Wireless intercom systems
- Other RF devices operating on or around the stage
As a result, a frequency that is legally available may still be unusable at a particular venue because of local RF conditions.
Will 5G Affect Wireless Microphones Operating Between 470 and 694 MHz?
This is an area where there is often some misunderstanding.
One of the key frequency bands allocated for 5G in Türkiye is the 700 MHz band, whereas the commonly used professional UHF wireless microphone spectrum extends up to approximately 694 MHz.
It would therefore be incorrect to assume that every professional microphone operating around 500 or 600 MHz will suddenly stop working simply because 5G has been introduced.
Nevertheless, particular care should be taken as operating frequencies approach the upper end of the available UHF spectrum.
More importantly, real-world RF problems at event venues are not caused exclusively by 5G.
For example, twenty wireless microphones being used in the ballroom next door, a nearby television transmitter or other RF equipment installed backstage can sometimes cause considerably more difficulty than the mobile network itself.
For this reason, the professional approach is not simply to “choose a frequency away from 5G.”
Instead, the entire RF spectrum at the event location should be assessed.
Why Should Older Wireless Microphone Systems Be Checked?
Many professional wireless microphone systems purchased years ago are still in active use throughout Türkiye.
Older generations of professional systems from manufacturers such as Sennheiser, Shure and other leading brands were often produced in multiple frequency-band versions.
Two systems may appear identical from the outside, while one operates comfortably within the 500–600 MHz region and another works in a frequency range that has since been reassigned to mobile communications.
For this reason, checking only the brand and model of the microphone is not sufficient.
The actual operating frequency range must be verified.
Labels on the receiver or transmitter may include information such as:
- Frequency Range
- Band
- MHz range
- Manufacturer-specific frequency-band code
Event production companies should therefore review the frequency bands of all wireless systems currently held in their inventories.
Why Is “We Have Used This Microphone for Years Without Any Problems” No Longer Enough?
One of the statements technical teams frequently hear is:
“We have been using this microphone for years and have never had a problem.”
Unfortunately, RF conditions are not static.
A frequency that was clear several years ago may no longer be clear today.
The activation of new mobile base stations, expansion of cellular networks, changes in television broadcasting frequencies and the arrival of additional wireless systems at the same venue can completely alter the local RF environment.
As 5G coverage continues to expand across Türkiye, these conditions will continue to evolve.
A frequency that works perfectly today may not necessarily work reliably:
- In another city
- At another hotel
- In another conference hall
- Or even at the same venue several months later
This is why professional RF planning increasingly needs to be carried out on an event-by-event and venue-by-venue basis.
What Should Be Done at Professional Events?
The correct response to the expansion of 5G is not to abandon wireless technology and replace every microphone with a wired alternative.
Professional wireless microphone systems can continue to operate very reliably when supported by proper RF planning and frequency coordination.
For larger events in particular, the following procedures are becoming increasingly important.
1. Perform an RF Spectrum Scan Before the Event
The automatic channel scan available on professional wireless microphone receivers is useful, but it may not be sufficient for larger productions.
Where possible, an RF spectrum scan should be carried out at the venue to identify which frequencies are genuinely clear.
This is especially important at locations with high levels of RF activity, including:
- Convention centres
- Large hotels
- Exhibition venues
- Stadiums
- Concert venues
- Television studios
- Busy city-centre event locations
Understanding the local RF environment before the audience arrives allows the technical team to build a much more reliable frequency plan.
2. Wireless Frequencies Should Not Be Selected Randomly
Finding ten apparently clear frequencies for ten microphones does not necessarily mean that the system will work reliably.
Wireless microphone transmitters can interact with one another and generate intermodulation products.
These unwanted frequencies may interfere with other channels within the same wireless system.
For this reason, professional wireless frequencies need to be mathematically coordinated so that the selected channels are compatible with one another.
Software such as Sennheiser Wireless Systems Manager, Shure Wireless Workbench and other professional RF coordination tools can assist technical teams in planning compatible frequency sets.
3. All RF Equipment at the Event Should Be Coordinated Together
Wireless handheld microphones may represent only part of the RF environment at a professional event.
A single conference may simultaneously use:
- 12 wireless lapel microphones
- 4 wireless handheld microphones
- 8 in-ear monitor channels
- Wireless intercom
- Microphones used by television or press crews
- Wireless broadcast systems
- RF-based systems associated with simultaneous interpretation
If every technical supplier configures its own wireless equipment independently, the risk of frequency conflicts increases considerably.
For large-scale productions, all wireless devices should therefore form part of a single coordinated RF plan.
4. Test the System Under Real Operating Conditions Before the Event
An RF test carried out in an empty conference room should not be considered the final test.
Once the complete technical infrastructure is powered up, the RF environment can change.
Equipment capable of contributing additional RF noise can include:
- LED screens
- Presentation computers
- Video processors
- Cameras
- Digital audio mixers
- Lighting equipment
- Other electronic devices installed around the stage
For this reason, wireless systems should be checked again after the complete event infrastructure has been powered on.
Whenever possible, testing should replicate the actual conditions under which the system will be used.
5. Plan Transmitter and Receiver Antenna Placement Correctly
Not every wireless microphone problem is caused by frequency interference.
Poor antenna positioning can be equally damaging.
Problems can occur when antennas are:
- Hidden behind metal structures
- Positioned too close to LED screens
- Located too far away from the stage
- Connected through excessively long or unsuitable antenna cables
- Installed where RF signals are physically obstructed
Large wireless systems can benefit significantly from properly designed antenna distribution systems and, where appropriate, directional antennas.
Good RF design therefore requires both frequency planning and correct physical system deployment.
6. Coordinate Backup Frequencies in Advance
RF conditions can change during a live event.
The technical team should therefore coordinate not only the frequencies that will initially be used, but also a number of clean backup frequencies.
If unexpected interference appears on one wireless channel, technicians should be able to switch immediately to a pre-coordinated alternative instead of spending valuable time searching for a new frequency during the event.
This is especially important for conferences, congresses, live broadcasts and events where microphone failure would cause immediate disruption.
What If a Large Number of Wireless Microphones Are Required?
Operating two or three wireless microphones at a small meeting is very different from managing 30 or 40 simultaneous RF channels at an international congress.
As the number of channels increases, available spectrum becomes more restricted and intermodulation calculations become increasingly important.
Consider a large event requiring:
20 speaker microphones + 8 headset microphones + 8 IEM channels
The technical team may need to coordinate 36 wireless channels simultaneously.
At this scale, professional systems with a wide tuning bandwidth provide a considerable advantage.
The wider the frequency range across which a receiver and transmitter can be tuned, the greater the number of options available to the RF engineer when searching for clean spectrum at a particular venue.
When investing in new professional wireless microphone systems, therefore, the question should not simply be:
“What is the operating range of this microphone?”
It should also be:
“What is the system's tuning bandwidth, and across which frequency range can it operate?”
For professional event use, tuning flexibility is becoming increasingly valuable.
Do 2.4 GHz Digital Systems Completely Solve the 5G Problem?
Digital wireless microphone systems operating in licence-exempt frequency ranges such as 2.4 GHz are also available.
These systems can be highly practical for certain applications.
However, the 2.4 GHz band is already shared by a very large number of devices, including:
- Wi-Fi equipment
- Bluetooth devices
- Computers
- Tablets
- Smartphones
- Wireless control systems
At large conferences involving hundreds or thousands of participants, the 2.4 GHz environment can become extremely congested.
It is therefore incorrect to assume that switching from UHF to 2.4 GHz automatically eliminates all RF problems.
Every frequency band has its own advantages, limitations and appropriate use cases.
The correct solution depends on the scale of the event, channel count, venue, RF environment and reliability requirements.
Can Simultaneous Interpretation Systems Also Be Affected?
This depends entirely on the technology being used.
Professional infrared simultaneous interpretation systems transmit interpreted audio to delegate receivers using infrared light rather than conventional radio frequencies.
As a result, they do not share the same RF spectrum used by 5G mobile base stations.
This is one of the significant advantages of professional infrared systems, particularly at large congresses and conferences where the RF environment may already be heavily congested.
By contrast, RF-based tour guide systems, Infoport systems and certain wireless audio transmission systems do use radio frequencies.
Their operating bands and the local RF environment should therefore also be assessed when planning an event.
This is why the choice of technology for a conference should be based not only on price or participant numbers, but also on the technical and RF conditions of the venue.
What Should Event Organisers Ask Their Technical Supplier?
Event organisers are not expected to become RF engineers.
However, when hiring wireless microphone systems or professional event audio equipment, asking a few basic questions can significantly reduce the risk of technical problems:
- Which frequency bands do your wireless microphones operate in?
- Are the systems compliant with current Turkish telecommunications regulations?
- Will an RF spectrum scan be performed before the event?
- Will all wireless systems be included in an RF coordination plan?
- Are backup frequencies prepared in case interference occurs?
- Will the RF system be monitored by the technical team during the event?
For events involving a large number of wireless microphones, these questions can sometimes be more important than the brand or model of the sound system itself.
Conclusion: 5G Is Not the End of Wireless Microphones — It Makes Professional RF Planning More Important
The introduction of 5G in Türkiye does not mean that professional wireless microphones can no longer be used.
What has changed is that the available RF spectrum is becoming increasingly valuable, crowded and complex.
Older systems operating in unsuitable frequency bands should be checked carefully. Spectrum conditions should be assessed at the actual event venue, and professional RF coordination should be carried out wherever a significant number of wireless channels are being used.
The quality of a professional wireless microphone system should not be judged solely by the microphone capsule or the audio quality of the receiver.
Reliable professional wireless operation is achieved through the combination of:
the right equipment + the right frequencies + correct antenna placement + professional RF coordination
At Simultane.com.tr, we plan the wireless microphone, conference audio, simultaneous interpretation and professional sound systems used at conferences, congresses and corporate events according to the technical conditions of each venue.
Where an event requires a large number of wireless channels, frequency planning and RF coordination can be incorporated into the overall technical setup.
If you are organising an event requiring multiple wireless handheld microphones, lapel microphones, headset microphones, simultaneous interpretation systems or professional conference audio equipment, determining the RF requirements in advance is one of the most effective ways to prevent interference, audio dropouts and unexpected technical problems during the event.
Professional wireless systems remain highly reliable — provided that the RF environment is treated as an essential part of event planning.
