PMR446 stands for Private Mobile Radios, 446 MHz. It is the only license-free frequency available for Walkie Talkies.
Walkie Talkies are a brilliant cost-effective communication solution, whether it is for business or personal use. PMR446 radios are usually used for small sites and line of sight outdoor activities.
Does this restrict conversation?
As all PMR446 radios are linked to one frequency, this means that all manufacturers of Walkie Talkies work with each other*. This means that interruption is possible from other radio users, making privacy a huge disadvantage of PMR446 Walkie Talkies.
However, most PMR446 radios come with 8 channels and 38 sub-channels providing in excess of 300 channels. This means that in general, you will mostly be able to choose a channel that is uninterrupted
What range does PMR446 provide?
Although sometimes advertised a range of 10km this would-be best-case scenario and in line of sight. In built-up areas and across different terrains the normal range would be up to 0.5 miles. Although there are some cases of some Walkie Talkies reaching a distance of 10km.
Can you get more powerful PMR446 radios?
Many people believe that the higher-powered PMR446 the better quality radio. However PMR446 radios have a power outage maximum 500mW, making anything higher than this illegal to use on the 446 frequency. The only exception being when the Walkie Talkies are switched to Direct Mode (DMO)
What is Direct Mode (DMO)?
Direct Mode also is known as (DMO), is when radio has the ability to transmit information to another radio without it using a public frequency. Therefore making a PMR446 radio have the potential to transmit private information to one radio.
This also means that the radio is capable of handling two conversations at any one time.