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Fundamentals of Mission-Critical Communication

Tactical Radio Basics

Learn about the distinct RF bands including High Frequency (HF), Very High Frequency (VHF), Ultra High Frequency (UHF), microwave and Satellite Communications (SATCOM).

soldier setting up SATCOM radio dish antenna

Types of Tactical Radio

What are the different types of tactical radio? Learn about the distinct RF bands including HF, VHF, UHF, microwave and SATCOM.

Radio Waves

Soldier attaching radio antenna to tree

What is a Radio Wave

Learn about the elements of a radio wave including frequency, amplitude and wavelength.

Elements of a Radio Wave

What are the Elements of a Radio Wave?

Learn about electrical and magnetic fields and how they form an electromagnetic wave.

What impacts radio wave propagation

What Impacts Radio Propagation?

Learn about attenuation, antenna configuration and amplitude.

aircraft causing radio noise and interference

What Causes Radio Noise and Interference?

Learn about the causes of RF noise and interference and how it can be mitigated to help ensure reliable communication in a tactical environment.

soldier exposed to radio waves

Radio Communications Q&A

Explore some common questions about tactical radios, such as: Are radios dangerous? How do we use radios in our daily lives? Can radios work under water?

Antennas

soldier using radio with antenna

Why Do I Need an Antenna?

Learn about the role of antennas, different types and how they support changing mission demands in tactical communication environments.

how an antenna works

How Does an Antenna Work?

Learn how a radio antenna transmits and receives, impacts the properties of a wave and the advantages of using a coupler.

example radiation plot

What is a Radiation Pattern?

Learn about radio antenna radiation patterns and how polarization and power impact antenna performance when using tactical radios.

Antenna configuration

How Do You Configure an Antenna?

Learn about setting the proper height, azimuth and grounding for intended antenna performance.

HF Radio

Soldiers using HF radio in the field

What is HF Radio?

Learn about the basics of HF tactical radio and the importance of the electromagnetic spectrum, propagation and effective planning for Beyond Line Of Sight (BLOS) communication.

Soldiers in vehicle using HF radio

Why Use HF Radio?

Learn about the benefits of using HF radio within tactical communications and the advantages it provides when it comes to Beyond Line Of Sight (BLOS) range, independence and security.

Soldiers near vehicle using HF radio

When to Use HF Radio

Learn about the conditions when HF radio is a potential solution for tactical communications and the effect of location, nature and performance in contested environments.

Soldiers using HF radio in the field

Parts of an HF Radio System

What are the parts of an HF radio system? Learn about the different parts of a complete high frequency radio system and the roles of the transceiver, antenna and ancillary equipment.

Soldier using HF radio

Using HF Radio

Explore a scenario where HF radio can be used for tactical communications.

How HF Radio Uses the Ionosphere

How Does HF Radio Use the Ionosphere?

Learn about the layers of the atmosphere, frequencies to use and how refraction extends range for Beyond Line Of Sight (BLOS) communication.

How HF Radio Waves Propagate

How Do HF Radio Waves Propagate?

Learn about HF wave propagation, including ground waves, skywaves, NVIS and skip zones.

The appearance of U.S. Department of War visual information does not imply or constitute DOW endorsement.