Critical Communications


Static communication infrastructure, such as landlines, mobile phones, LMR networks and fibre infrastructure, are easily disrupted and susceptible to failure through natural and manmade disasters. In some remote areas, this infrastructure simply doesn’t exist.

Organisations providing critical services need a form of communication that works without the need for any external supporting infrastructure. HF radio is an ideal solution, working as either a primary or emergency system for communication.

With an HF radio setup, organisations have everything they need in order to transmit voice, email, fax and data signals over long and short distances - a necessary capability in critical communications scenarios.

Barrett HF radios can provide critical communications capabilities for a number of public and private-sector applications, including: Agriculture, Construction, Embassies & Consulates, Energy, Emergency Services, Fisheries, Forestry, Mining, Post, Remote, Healthcare needs, Shipping, Telecommunications and, Transportation   

What is HF radio?

HF radio is a system of communication that operates on the portion of the radio spectrum between 1.6 and 30 megahertz (MHz). This form of propagation uses single sideband (SSB) transmissions - an efficient form of voice modulation - to carry signals over both short and long distances.

There are two main forms of radio wave transmission in HF radio: ground and sky waves. Ground waves travel along the Earth's surface, enabling communication across short distances. Sky waves are bounced off the Earth's ionosphere in order to reach transmission ranges of several thousands of kilometers.

With these types of transmission, HF radio facilitates communication to and within isolated areas. A typical setup consists of three components:

A transceiver with a microphone, speaker and frequency controls.
An antenna for broadcasting and receiving transmissions.
An independent power source.


What is VHF radio?

Operating in the band between 30 and 300 MHz, VHF radios are typically smaller, lighter and more portable than their HF counterparts. This makes them particularly useful for smaller units in the field communicating with one another.

VHF waves travel across the Earth's surface and do not reflect off the ionosphere. As such, they are limited to line-of-sight (LOS) transmissions - the antennas of the transmitting and receiving radios must be able to 'see' one another. Given this limitation, VHF is generally limited to ranges of approximately 8 kilometers. However, there are a number of solutions available for extending VHF propagation.

Tactical HF and VHF solutions

Barrett Communications has developed a number of products designed to facilitate transmission in tactical situations. These are some of the most common HF and VHF systems Barrett Communications provides, used by organizations in over 150 countries worldwide.

Why choose Barrett Communication Solutions?

Since its founding in 1976, Barrett Communications has emerged as one of the world's leading designers and manufacturers of HF and VHF radio systems. With specializations in tactical, humanitarian and critical communications, it has developed expertise in delivering sophisticated solutions that are intuitive and user-friendly.

Barrett Communications technology is backed by ISO9001:1008 quality assurance certification, providing HF and VHF military communications solutions that are known for reliability and cost-effectiveness. With a distribution and support network that spans the globe, Barrett Communications is able to provide high levels of service for customers, no matter where they are located.




With our professional team and quality tools & equipment, we have the capacity to design, develop, install and commission reliable, effective and efficient tactical communication solutions on any scale. Get in touch with us and let us know how we can help you achieve communication efficiency.


We are one of the leading providers of Wireless & Navigation, Voice and Data solutions with over 15 years of experience. We are also the official authorized Garmin Distributor in Tanzania providing innovative and exciting products.


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