What is PMR446?

PMR446 is a licence-free radio system used in the Uk and Europe. It is designed for short-distance two-way communication over distances up to a few kilometres. It operates on eight channels in the ultra high frequency (UHF) range of 446.0-446.1 MHz.

PMR446 radios do not require a licence because they use a licence-free frequency range. This means that anyone can use the frequencies without having to pay licence fees or obtain permission from a regulator. It also means that the radios are designed to transmit at low power, with limited range, which reduces the risk of interference with other frequencies.

The technology is used for a variety of purposes, including recreational activities such as camping and hiking, as well as commercial and public safety uses. PMR446 walkie talkies are also increasingly being used in the hospitality industry, in retail stores and warehouses, and in building construction for short term use.

PMR446 frequencies are generally considered to be open to interference, although the technology is designed to reduce the risk of interference as much as possible. The low power of the transmissions, combined with the small geographic coverage, helps to limit the chances of interference. Additionally, the eight channels in the frequency range are shared by different users, which helps to spread out the risk of interference.

Yes, there are rules governing the use of PMR446 radios. These rules include restrictions on the power of the transmissions, the geographic coverage of the radios, and the type of content that can be transmitted. Additionally, users must ensure that their transmissions do not interfere with other radio services, and must comply with any national or local regulations governing radio use.

PMR446 radios offer much lower costs than DMR (digital mobile radio), and are ideal for basic, non-business-critical communication. They are also simpler to set up and use, require no programming and can easily be shared between users. The range is limited compared to DMR radios, however they can be used within a range of 5 km (terrain dependant).

1. Cost Savings: License-free PMR446 walkie talkie radios are much more affordable than other radios that require a license. This makes them ideal for businesses on a budget or those that need to purchase a large number of radios.

2. No Restrictions: With a PMR446 radio, you don’t have to worry about any restrictions or regulations. You can use the radio for any purpose you need without worrying about a license or other paperwork.

3. Easy to Use: PMR446 radios are designed to be easy to use, so even those who are not familiar with radios can operate them with ease.

4. Range: Some PMR446 radios offer a range of up to 5 kilometers in ideal conditions, which is more than enough for everyday communication needs such as a park, or primary school.

5. Durability: PMR446 radios are designed to be durable and reliable, so you can count on them to work whenever you need them.

1. Limited Range: PMR446 radios can have a limited range of approximately 2 miles (3.2 km) and can be affected by obstacles such as buildings and terrain. This makes them unsuitable for large areas or long distance communications.

2. Limited Channels: PMR446 radios are limited to only 8 channels, which makes them unsuitable for crowded areas as users will be competing for the same channels.

3. No Privacy: PMR446 radios are not encrypted, meaning that anyone with a compatible radio can listen in to your conversations.

4. Interference: PMR446 radios are vulnerable to interference from other nearby radios, which can disrupt conversations.

5. Limited Power: PMR446 radios are limited to a maximum power output of 500mW, which gives them a shorter range than other types of radios.