Ignition Interference in Mobile Stations
Receiver interference is sometimes a doggedly stubborn problem with mobile stations. The RF environment of an automobile is often just…
Ham Radio School Articles
Discover, think, learn.
RF Ground Conductors (T4A08)
The 2022-2026 Technician License question pool inquires about the best conductors to use for radio frequency grounding, or bonding: T4A08:…
Types of Radio Frequency Interference (T7B03)
The 2022-2026 Technician License question pool includes a question about various types of radio frequency interference, or RFI: T7B03: Which…
Inductors (T6A06)
The 2022-2026 Technician License exam pool has a couple of questions about inductors. We'll elaborate on a question here about…
Technician Figure T-1
The 2022-2026 Technician License question pool contains five questions referencing figure T-1 below. Let's get a solid understanding of the…
Series & Parallel Component Calculations (G5C04)
The 2019-2023 General License exam pool requires some calculations of equivalent component values, such as a single component that is…
Digital Signal Processing
Manufacturers love to brag about it… Operators tend to love the convenience of it… But very few beginner amateurs have…
A Simple View of Resonance
A key concept for antennas is the concept of resonance. Here is one simple way of thinking about resonance in…
SWR Perfect Match (T7C04)
The 2022-2026 Technician License Exam question pool asks you to identify the SWR that relates to a perfect impedance match:…
Good SWR & Antenna Resonance
Standing Wave Ratio (SWR) is an important concept that describes how good of a match exists between a transceiver and…
