Coaxial Loss (T9B05)
The 2022-2026 Technician License Exam question pool asks how coaxial cable losses and signal frequency are related: T9B05: What happens…
Ham Radio School Articles
Discover, think, learn.
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:…
Ten Uses for a Multimeter
The handheld digital multimeter (DMM) is a basic tool for ham radio applications. It is called a multimeter because it…
SSB Receive Filter Bandwidth
Technician question pool item T4B09 (2018-2022) raises the issue of filters for receiving single sideband signals: T4B09: Which of the…
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…
Single Sideband Advantages (G2A06)
A question in the 2019-2023 General License question pool inquires about the advantages of SSB on the HF bands. This…
SSB Transmit Power: Audio Required!
Recently, I was talking with a new ham about a problem he was experiencing when trying to “tune up” his…
The Heterodyne Receiver: Frequency Mixing and the Intermediate Frequency
The challenge faced by a radio receiver after snagging a desired radio frequency (RF) signal is to extract the audio…
VHF Multi-mode Transceiver
A previous Technician question pool item inquired about using a multimode transceiver for weak-signal communications on the VHF bands, such…
