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Basic Theory of Broadband Cable Systems [WR9101]

This course has now been retired and is not available for booking.

Alternative courses can be found in our course catalog.

Estimated study time: 1hr 30mins


The webcasts for this course are available in the following languages:

plus additional languages available for assessments.

Pre-requisite experience:

No pre-requisite knowledge is required for this course.


In the power theory primer, you will learn what voltage and current are, and the ways they relate to each other and to other electrical power terms and phenomena. You will also be introduced to the two different types of current and to two phenomena, capacitance and inductance, that are used to store and couple electrical energy.


In the RF theory primer, you'll learn how RF waveforms relate to the most basic waveform in nature, the sine wave. You will see the three attributes that define a waveform, and which waveforms are generally known as RF. You'll find out what impedance is, and how it affects the performance of RF circuits, and how modulation is used to transport signals via RF and other waveforms. You'll also learn about noise and how it affects signals. Finally, you'll learn about some of the characteristics of RF signal travel in transmission medium.


In the Cable RF Spectrum primer, we will cover the definition of spectrum and how it relates to sine wave frequencies. You will learn where cable's radio frequency section of the electromagnetic spectrum is located, and why that section does not need to belong only to cable. You'll see how individual services are allocated space within the cable spectrum and learn about tools to view signals within a spectrum. You'll also see examples of both analog and digital video signals as viewed by one of those tools.


In the Optical Spectrum primer, you will then learn the frequency range suitable for optical signals, and find out why some of these frequencies are better than others for transmission of signals over a fiber optic medium. You'll explore how optical signals are amplified without conversion to electrical form and discover how the information-carrying capacity of an optical fiber can be increased by the use of multiple wavelengths. Finally, you'll learn the differences and similarities between traditional RF transmission, and a new technology called RF over Glass, or RFoG, that operates in the optical spectrum.


The RFoG primer will explain the similarities and distinctions of RFoG versus Hybrid Fiber Coax. It will explain the range of applications for RFoG and describe how RFoG works as an alternative or pathway to PON or passive optical networks.

Intended audience:

The intended audience is anyone without previous knowledge of electrical power, RF and optical systems, who needs to understand basic technology and concepts. This includes personnel who interact with people that work with electricity, electronics, and electronic equipment.

How will I learn?

You will study this course online in a self- paced format. The course is made up of five webinars that were recorded when delivered and are now available to view as an online video. There is no assessment for the course, so the course is completed by participating in viewing all the webinars.

Successful completion will require:

This course is information only and there is no assessment. To complete the course you need to view all the webinars within the course.

Upon successful completion you will:

Receive a certificate that may be self-printed.

BICSI credits may be applied for, however no Event ID is supplied for this course.

Course information:

Certificate valid for 1 year

Estimated study time: 1hr 30mins

Course Benefits

  • Learn at your own pace
  • Effective learning
  • Learn on the go and on-site
  • Cost effective
  • Consistent training globally
  • Access latest material

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