Buying a walkie-talkie, setting the frequency to 446 MHz and starting to communicate. It's that simple, isn't it? Not quite.
There is still often confusion surrounding PMR446 walkie-talkies and PMR446 frequencies. PMR446 can be used in the Netherlands without an individual frequency licence. But licence-free does not mean regulation-free. Clear technical conditions apply to the equipment and its use.
This distinction is important. Especially when walkie-talkies are used professionally, for example at events, in warehouses, construction, security, hospitality or for emergency response.
In this blog, we explain what PMR446 is, which frequencies you can use and what a PMR446 walkie-talkie must comply with. We also discuss why a professional programmable UHF walkie-talkie may not automatically be used as a licence-free PMR446 walkie-talkie.
What is PMR446?
PMR446 is a European harmonised application for communication via walkie-talkies in the frequency band from 446.0 to 446.2 MHz, with a maximum transmit power of 500 mW e.r.p.
PMR stands for Private Mobile Radio or Personal Mobile Radio. The system is designed for direct communication between portable walkie-talkies over relatively short distances.
This does not require a mobile network. You also do not need to take out a subscription and in the Netherlands, no individual frequency licence is required for use under the PMR446 conditions.
This makes PMR446 interesting for, for example:
- Security and emergency response
- Catering and events
- Warehouses and logistics
- Construction sites
- Shops and facility teams
- Campsites and recreation
- Outdoor activities
You turn on the walkie-talkies, choose the same channel and can communicate with each other. But this convenience also has a downside.
Are PMR446 frequencies licence-free?
Yes. PMR446 frequencies may be used licence-free in the Netherlands, provided that the equipment and its use comply with the applicable conditions.
The frequency band runs from 446.0 to 446.2 MHz and the maximum transmit power is 0.5 watts (500 mW).
Everyone may use this frequency space. You therefore do not get an exclusive channel assigned. Imagine a busy event site. Your security communicates via PMR446, while a supplier a hundred metres away coincidentally uses the same channel. Then both groups can encounter each other on the frequency. That is not a fault in the system. It is a consequence of the licence-free nature of PMR446.
Is PMR446 suitable for emergency response and critical communication?
PMR446 can be used for emergency response, but for critical communication it is important to carefully consider the risks.
Because PMR446 frequencies are shared, interference-free communication is not guaranteed. The Dutch Radiocommunications Agency (RDI) specifically points this out for critical processes such as company emergency response and company fire brigades.
When communication absolutely must be available at a crucial moment, a professional solution with its own or licensed frequency space may therefore be a better choice.
What rules must a PMR446 walkie-talkie comply with?
The fact that a walkie-talkie can transmit at 446 MHz does not yet make it a suitable PMR446 walkie-talkie.
Technical conditions apply to licence-free PMR446 use. A few points are particularly important.
- PMR446 frequencies are between 446.0 and 446.2 MHz. PMR446 uses the frequency band from 446.0 to 446.2 MHz. Within this frequency range, various channels and techniques can be applied. Both analogue and digital PMR446 solutions exist.
- The transmit power is a maximum of 0.5 watts e.r.p. A PMR446 walkie-talkie may transmit a maximum of 500 mW e.r.p. This relatively low power was chosen deliberately. PMR446 is a shared frequency band. If users were to transmit at much higher powers, they could interfere with each other over much greater distances. More transmit power may sound attractive if you want more range, but with PMR446 this is not simply allowed.
- A PMR446 walkie-talkie has an integrated antenna. An important feature of PMR446 equipment is the integrated antenna. This means that you cannot simply connect an external antenna to increase the range. Even a professional UHF walkie-talkie with a detachable antenna does not automatically become suitable for licence-free PMR446 use simply by reducing the transmit power.
And precisely therein lies the confusion in practice.
May you use every programmable walkie-talkie on PMR446 frequencies?
No. The fact that a walkie-talkie can technically transmit at 446 MHz does not automatically mean that you may use it as a licence-free PMR446 walkie-talkie. Many professional UHF walkie-talkies are programmable. They can therefore technically be set to frequencies around 446 MHz.
But professional walkie-talkies can, for example:
- Have a higher transmit power
- Have a detachable antenna
- Be programmed outside the PMR446 frequency band
- Be designed for professional use on frequencies for which other conditions apply
Therefore, simply reducing the power to 0.5 watts is not sufficient to make every professional UHF walkie-talkie a PMR446 device.
Do you want to communicate licence-free via PMR446? Then choose equipment that is actually designed for PMR446 and complies with the applicable European requirements. This not only prevents legal problems, but also provides certainty that the equipment is used for its intended purpose.
May you use an external antenna or repeater with PMR446?
No, PMR446 is intended for direct communication between portable devices and not for increasing the range with, for example, repeaters or external antennas. For many users, direct walkie-talkie-to-walkie-talkie communication is exactly what they need.
But imagine your employees are spread across multiple business halls. Between them are thick concrete walls, steel structures and machines. Then a simple PMR446 solution can reach its limits.
The solution then is not to simply "boost" PMR446 further and further. It is wiser to look at a communication system that is actually designed for that situation.
What is the range of a PMR446 walkie-talkie?
There is no reliable answer such as: "A PMR446 walkie-talkie always has a range of five or ten kilometres." The actual range is highly dependent on the environment.
In an open landscape without large obstacles, the range can be considerable. In a warehouse full of steel, a large hotel, a car park or between tall buildings, the range can be much smaller.
Factors influencing the range include:
- Buildings and walls
- Concrete and steel structures
- Height differences
- Vegetation
- The user's position
- Solar panels with and without optimisers
- Other radio signals in the area
Therefore, when choosing a walkie-talkie, do not just look at a theoretical distance on the packaging. The practice in which you use the walkie-talkie is much more important.
Can other people listen in on PMR446?
With analogue PMR446 communication, you must assume that other users on the same frequency can receive the communication.
CTCSS and DCS tones are sometimes called "subchannels", but they do not create their own, shielded frequency. They mainly ensure that your walkie-talkie only opens audio when the correct signal is received. This can make communication more pleasant, but does not make a shared PMR446 channel exclusive.
Therefore, do not use PMR446 as if you have a private frequency.
Analogue or digital PMR446?
In addition to traditional analogue PMR446 walkie-talkies, digital solutions exist.
Which option is most suitable depends on the application. For a small team that mainly needs simple voice communication, analogue can be perfectly adequate. In a professional environment, digital possibilities can be interesting.
The important thing remains the same in both cases: choose equipment that is actually suitable for the PMR446 application if you want to communicate licence-free.
When is PMR446 a good choice?
PMR446 is particularly strong when communication needs to be simple, direct and accessible. Think of a shop where colleagues need each other quickly. A catering team that keeps in touch between the kitchen, service and reception. Or employees on a relatively compact event site.
You don't need a mobile phone number, you don't have to call anyone first and you are not dependent on a mobile call. One push of the PTT button and your entire team can hear the message.
That is precisely why walkie-talkies are still so valuable in many work environments.
When is it better to choose a different walkie-talkie solution?
PMR446 is not the best choice for every organisation. When communication is business-critical, large distances need to be covered or multiple buildings and floors need to be reliably covered, a professional walkie-talkie solution may be more suitable.
Consider, for example, DMR, TETRA or communication via LTE/4G/5G, depending on the application. The advantage is that a communication system can then be much more specifically tailored to the organisation, desired coverage and reliability.
Frequently asked questions about PMR446 frequencies
Do you need a licence for PMR446?
No. In the Netherlands, PMR446 can be used without an individual frequency licence when equipment and use comply with the applicable conditions.
Which frequency does PMR446 use?
PMR446 uses the frequency range from 446.0 to 446.2 MHz.
How much power may a PMR446 walkie-talkie have?
The maximum transmit power is 500 mW, or 0.5 watts.
May I program a professional UHF walkie-talkie to 446 MHz?
The fact that a professional UHF walkie-talkie can technically be set to a PMR446 frequency does not mean that it is automatically suitable for licence-free PMR446 use. The equipment must comply with the conditions for the application.
Are PMR446 frequencies private?
No. They are shared frequencies. Other users can use the same frequency space, which can lead to shared use or interference.
May I use a repeater for PMR446?
PMR446 is intended for direct communication between portable walkie-talkies. Using a repeater to increase coverage does not fit within the PMR446 application.
Is PMR446 suitable for businesses?
Yes. PMR446 may be used privately as well as commercially. For business-critical communication, however, it must be weighed whether the shared, licence-free nature offers sufficient reliability.
Want to be sure you choose the right walkie-talkie?
A walkie-talkie must primarily do what you expect of it when you need it. That's why at Deltron, we don't just look at frequencies, power or the number of channels. We look at the practical situation. Where are the walkie-talkies used? How big is the site? Are there many walls or steel structures? How many people need to communicate with each other? And how important are range and availability for daily work?
Deltron has been a specialist in communication equipment since 2007 and supplies PMR446 walkie-talkies for both professional and recreational use.
Do you want to communicate easily and licence-free? Then take a look at our range of PMR446 walkie-talkies. Do you need reliable communication for a large site, multiple buildings or a critical business environment? Then we will be happy to help you determine which communication solution better suits your situation.
Because ultimately, it's not just about which walkie-talkie can do the most technically. It's about you and your team being able to reach each other when it matters.
