Chordal Hop Propagation
Amateur radio operators communicate around the globe on the HF bands thanks to signals propagating by ionspheric skip. High layers…
Ham Radio School Articles
Discover, think, learn.
Intro to Digital Voice
Ham radio on the VHF and UHF bands has been dominated by Frequency Modulation (FM), an analog mode invented in…
Get the Right Signal Tone
Radio amateurs use tone signaling for many different uses on the amateur radio bands. Tone signaling works especially well on…
Simplex, Duplex, Offset and Split
Some time ago, a ham on twitter posted about a “2m SSB simplex contact” he had made. Another ham replied…
What Frequency Do I Use on 2 meters?
You’ve just purchased your first handheld transceiver and have been chatting with both old and new friends around town on…
Standard Phonetic Alphabet (T2C03)
T2C03from the 2018-2022 Technician License Course Section 2.3, Call Signs: T2C03: What should be done when using voice modes to…
Hey, Which Coaxial Cable Should I Use?
Coaxial cables are the most popular form of transmission line for getting our signals to and from our antennas. There…
Working DX
One way to work a lot of DX on a weekend is to participate in a DX contest on the…
Transformers (G5C06)
The 2019-2023 General License question pool includes questions about the function of electrical transformers: G5C06: What is the RMS voltage…
Transformer Windings Diameters (G5C16)
The 2019-2023 General License question pool asks about the diameters of transformer windings, comparing primary to secondary: G5C16: Why is…
