Radio Electronics for Amateur Radio Operators: Measurement and Circuit Theory - Learn Beginner Electronics: From Atoms to Antennas™

Volume 2: Radio Electronics for Amateur Radio Operators - Measurement And Circuit Theory: Beginner Electronics

Once you understand the basic components of electronics, the next step is learning how to measure, analyze, and work with real electrical circuits. This is where theory becomes practical skill.

Volume 2 moves beyond individual electronic parts and begins teaching the tools, circuit behavior, and power systems that form the backbone of every piece of radio equipment. You will learn how to safely measure electrical values, understand DC and AC circuit operation, and work with the power systems that keep every station on the air.

Module 5 — Test Equipment Basics introduces the essential instruments used throughout electronics and amateur radio. Multimeters, oscilloscopes, signal generators, frequency counters, wattmeters, antenna analyzers, dummy loads, and spectrum analyzers are all explained in practical terms. You will learn what each instrument measures, how it works, how to connect it safely, and how to interpret the readings you see while troubleshooting or operating radio equipment.

Module 6 — DC Circuit Theory develops a complete understanding of direct current circuits and electrical behavior. Voltage, current, resistance, power dissipation, series and parallel circuits, Kirchhoff’s Laws, voltage dividers, current flow, and circuit analysis are all covered step-by-step using practical examples tied directly to amateur radio systems. By the end of this module you will understand how DC power moves through a circuit and how electronic devices behave under load.

Module 7 — AC Circuit Theory explains the alternating current principles that make radio communication possible. Frequency, phase, reactance, impedance, resonance, capacitive and inductive behavior, transformers, filters, and waveform analysis are developed systematically using real radio applications. Concepts that often confuse beginners — including phase shift and reactive components — are explained clearly in practical language tied directly to RF systems and signal behavior.

Module 8 — Power Supplies explores the systems responsible for converting and regulating electrical energy inside radio equipment. Linear power supplies, switching supplies, transformers, rectifiers, filtering, voltage regulation, ripple reduction, battery systems, charging circuits, grounding, and power distribution are all covered in detail. You will learn why stable power is critical to radio performance and how poor power systems can introduce noise, instability, and interference into your station.

Together these four modules build the practical foundation needed to understand, troubleshoot, and safely work with real electronic circuits. Whether your goal is building equipment, repairing radios, improving your technical operating skills, or developing a deeper understanding of how modern radio systems function, Volume 2 provides the knowledge that turns electronics theory into practical hands-on ability.