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…
Radio Science (24)
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…
Coaxial Loss (T9B05)
The 2022-2026 Technician License Exam question pool asks how coaxial cable losses and signal frequency are related: T9B05: What happens…
Math Prefixes for Electrical Measures
The 2026-2030 Technician License question pool inquires about those pesky math prefixes used in front of many electrical measurement quantities:…
FM Bandwidth
The Technician question pool (2022-2026) asks you to identify FM bandwidth: T8A09: What is the approximate bandwidth of a VHF…
Understanding Single Sideband (SSB)
A new Technician Class operator is likely to get started in ham radio with VHF and UHF phone operations using…
Tech Bands Over-the-Horizon Propagation (T3C04)
Question pool item T3C04 (2018-2022) asks: Which of the following propagation types is most commonly associated with occasional strong over-the-horizon…
