HF Communications Training Workshop

HF Communications have been an important, sometimes the only, way of providing long-distance communication for decades. HF makes it possible to reach people wherever they may be located, whether in the jungles of Congo, the bushes of Australia, or the sands of the Sahara.

In this HF Communications Training course, you will learn the technology and applications of HF Communications, including speech and digital uses such as modem utility, browsing, and mailing. Understanding HF technology is a must for anyone involved with long-distance connectivity.

We will start the course by learning the essential RF propagation concepts. We will then review the challenges HF Communications offers and how we can address them. We will emphasize the antenna technology that makes worldwide connectivity possible. We will learn about modulation schemes and communications modes, the architecture and design of an HF radio system, and the applications of HF. We will conclude by comparing HF with competing technologies and looking at the future of HF. The HF communications Training course will provide you with a thorough and practical introduction to HF communications.

What’s Included

• 2 Days of HF Communications Training Workshop from an Authorized Instructor
• HF Communications Training Workshop Electronic Courseware
• Certificate of Completion
• 100% Satisfaction Guarantee

Resources:

• HF Communications Workshop – https://www.wiley.com/
• HF Communications Workshop – https://www.packtpub.com/
• HF Communications Workshop – https://store.logicaloperations.com/
• HF Communications Training Workshop – https://us.artechhouse.com/
• HF Communications Training Workshop – https://www.amazon.com/

Related Courses:

• Antenna and Array Fundamentals Training
• Antenna Engineering Training
• Antenna Engineering, Theory, Analysis, and Design Training
• DAS Training | Distributed Antenna System Training

 Audience/Target Group:

The target audience for this HF Communications Training Workshop course:

• Those involved in the military or commercial uses of HF Communications who wish to learn more about this technology.

Prerequisites:

The knowledge and skills that a learner must have before attending this HF Communications Training Workshop course are:

• Some prior familiarity with the basics of radio will be helpful.

 Objectives:

Upon completion of this HF Communications Training Workshop course, the student will be able to:

• List the key components of an HF system and describe how they fit together
• Explain how radio waves operate in different environments
• Design an HF communications system
• Describe the current markets and applications for HF communications

HF Communications Training Workshop

Course Syllabus:

Introduction

• History of HF communications
• Terrestrial wireless communications challenges:  Attenuation, reflection, diffraction, scattering, multipath effects, interference

Spectrum Basics

• Electromagnetic spectrum:  Bands and uses, regulation
• More about the HF band
• Spectrum issues:  Line of Sight (LOS) transmission, path loss, etc

Radio Propagation

• Electromagnetic field
• Ground and surface waves:  What, when
• Direct waves:  Direct LOS, Fresnel theory, free space loss, sum operating margin
• Skywaves (Ionosphere)
  • Key concepts
  • Structure of the Ionosphere:  D, E, F1, F2
  • Critical frequencies:  MUF, LUF
  • Propagation effects:  Daily, seasonal, geographic, sunspots, interference, weather, solar flares
  • Propagation indices:  K, Ap, Solar flux, Sunspot number
• Tropospheric waves

Antennas

• Characteristics:  Dimensions, gain (dB), polarization, F/B ratio, VSWR, radiation diagrams, HPB
• Types:  Directional, omnidirectional
  • Whip, dipole, inverted Vee, Loop, beams
  • Practical examples

Modulation and Communication Modes

• Modulation
  • Analog:  AM, SSB, FM, PM
  • Digital:  xFSK, xASK, xPSK, xQAM
• Modes
  • CW-Morse
  • AM voice/SSB voice
  • FM voice
  • Digital:  Modems/examples

HF Radios

• Types:  Analog, digital, portable, vehicle, nomadic, fixed
• Types:  analog, digital, portable, vehicle-mounted, nomadic, fixed
• Architecture
• Characteristics
  • Power
  • Channels
  • Modulation

Uses of HF Communications

• Long-distance/amateur radio
• Emergency (including disasters) communications
• Maritime uses
• Military applications
• Examples

Link Budget Calculations

• Basic principles
• Tools
• Calculation exercise

Emerging Trends

• Automatic link establishment
• Digital new services

Conclusion

• Comparison of satellite and HF communications
• Advantages and disadvantages
• Course recap, Q/A, and Evaluations

HF Communications Training Workshop Recap, Q/A, and Evaluations