The Society of Broadcast Engineers

The Association for Broadcast and Multimedia Technology Professionals

RF101: Broadcast Terrestrial Transmission Systems Course Module 4 – Antenna Gain – Feed Line Loss

Instructional Method: Now Available ON DEMAND

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RF101: Broadcast Terrestrial Transmission Systems course is an introductory survey of the RF fundamentals needed to successfully monitor a broadcast facility. The course is targeted to those with minimal or no background in RF and/or are relatively new to the field. It will also serve as a refresher for more seasoned engineers. Many come to the field of broadcasting from varied backgrounds such as IT, electronic technicians or military vets, and find themselves immersed in the complexity of a broadcast facility needing to understand and work with the RF end of the system. This multi-module course will present an overview of RF needed to understand the basics and make informed decisions. RF101 modules will be presented in eight 1-1½ hour webinars.

Module 4 of RF 101: Antenna Gain – Feed-Line Loss

The information learned in Modules 2 and 3 focus into this important discussion highlighting the relationship between gain and loss.  Calculations and examples are discussed in these topics: coverage requirements; ERP versus TPO; review of directivity and gain; system losses; single radiator, multiple radiators, and other gain/loss calculations. Join us for RF101: Module 4 Antenna Gain – Feed-Line Loss .   Taught by Dennis Baldridge, CPBE, 8-VSB, AMD, DRB, CBNT, the webinar continues the RF101 training.

See below for the complete schedule.

RF101: Broadcast Terrestrial Transmission Systems Course Modules

  • Introduction to Radio Frequency (RF), Now Available On Demand
  • Transmission Lines, Now Available On Demand
  • Towers, Antennas, and Transmission Systems, Now Available On Demand
  • Antenna Gain – Feed-line Loss, Now Available On Demand
  • Modulation Fundamentals, Now Available On Demand
  • AM, FM, TV RF Propagation, Now Available On Demand
  • RF Transmitter Measurements, Now Available On Demand
  • FCC Regulations, Now Available On Demand

Upon completion of the entire course, attendees will be able to 1) Understand the basic characteristics of RF and electromagnetic radiation; 2) Describe different types of transmission lines, antennas, and their characteristics; 3) Understand the fundamentals of RF propagation; 4) Understand modulation and different modern modulation methods; 5) Describe various components used in RF communications systems; 6) Explain the basic characteristics of RF transceiver systems; 7) Define common terms used to characterize RF systems; 8) Understand how to perform a range of basic RF measurements; 9) FCC regulations pertinent to maintaining a broadcast facility.

Dennis BaldridgeAbout Your Instructor: Dennis Baldridge, CPBE, 8-VSB, AMD, DRB, CBNT

Instructing and the creator of the RF101: Terrestrial Transmission Systems course is Dennis Baldridge, CPBE, 8-VSB, AMD, DRB, CBNT, a veteran of the broadcast engineering field for more than 30 years. Baldridge is a Senior member of the SBE, holds an FCC Lifetime General License (formerly a First Class FCC License) and Amateur Radio Extra Class License (K0DB). He also holds a M.A.E. and teaches science courses for Upper Iowa University. As owner of Baldridge Communications, LLC, he works as a contract engineer and has also authored articles for Radio Guide. Baldridge serves as an inspector for the FCC Alternate Inspection Program of the Wisconsin Broadcasters Association.

SBE Recertification Credit

The completion of this webinar from Webinars by SBE qualifies for 1 credit, identified under Category I of the Recertification Schedule for SBE Certifications.

Registration and Pricing

Registration for each module will be done separately. Click “Register Now” below, to register for Module 4.

SBE Members: $62

SBE MemberPlus Members FREE

Non-Members: $92

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More information about registering using the SBE MemberPlus benefit

All SBE webinars, including new webinars presented in 2020, are included at no additional cost for members who renew or join using the $175 SBE Member Plus membership option.  Through this option you get access to all archived SBE webinars and any new live webinars SBE presents through March 31, 2021, all for no extra cost. Members can renew and newcomers may join online at the SBE website using the SBE MemberPlus option.

Access to the SBE webinars through the SBE MemberPlus program is limited to the MemberPlus-purchaser only.  You are not permitted to distribute, sell, copy, share, project or otherwise make the webinars available to any other individual or group without express written permission by the SBE.


If you have questions regarding this webinar, contact Cathy Orosz via email or by phone at 317-846-9000.