Field Day Weekend! What's it all about?
It's Field Day weekend! Find your local field day event and have fun with hams. Here's what it's all about.
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Bob KØNR
Get the Right Signal Tone
DTMF, CTCSS, DCS, Tone Burst... What are they and which do you need for a given situation? Learn about the variety of signal tones.
6,443 views
Bob KØNR
Simplex, Duplex, Offset and Split
Learn the differences among these operating modes and terms, and understand typical operating conditions for each.
7,145 views
Bob KØNR
What Frequency Do I Use on 2 meters?
Learn how to stick to the voluntary band plans on 2-meters and avoid interference.
20,799 views
Stu WØSTU
Standard Phonetic Alphabet (T2C03)
T2C03 from the 2018-2022 Technician License Course Section 2.3, Call Signs: T2C03: What should be done when using voice modes to ensure...
2,658 views
Bob KØNR
Hey, Which Coaxial Cable Should I Use?
A comparison of common ham radio coaxial cable types and signal loss.
13,718 views
Stu WØSTU
Sunspots and Propagation
The new solar cycle is crazy active! Learn why sunspots are of great interest to ham operators.
3,830 views
Bob KØNR
Working DX
Contest weekend? Learn common contest practices and how to snag DX stations.
608 views
Stu WØSTU
Op Amps (E7G12)
The 2020-2024 Extra License question pool wants to ensure you know a thing or two about operational amplifiers, an analog integrated...
159 views
Stu WØSTU
Part 15 Devices
Part 15 of Title 47 of the Code of Federal Regulations regulates low power, unlicensed devices that can cause interference on the ham...
154 views
Stu WØSTU
Spectrum Analyzer (E4A02)
The spectrum analyzer provides a frequency domain view of signals, while an oscilloscope displays the time domain. Learn the difference.
446 views
Stu WØSTU
Liquid Crystal Displays
Ever wonder how that LCD on your radio works? Get the fundamentals on liquid crystal display functionality.
119 views
Stu WØSTU
Vacuum Tubes (G6A10)
The 2019-2023 General License question pool asks about the inner workings of vacuum tubes used as amplifiers: G6A10: Which element of a...
374 views
Stu WØSTU
Bleeder Resistors (G7A01)
The 2019-2023 General License question pool requires that you understand the purpose of a power supply bleeder resistor: G7A01: What...
115 views
Stu WØSTU
Transformer Windings Diameters (G5C16)
The 2019-2023 General License question pool asks about the diameters of transformer windings, comparing primary to secondary: G5C16: Why...
175 views
Stu WØSTU
Transformers (G5C06)
The 2019-2023 General License question pool includes questions about the function of electrical transformers: G5C06: What is the RMS...
212 views
Stu WØSTU
Capacitive Reactance (G5A06)
The 2019-2023 General License question pool asks about capacitive reactance: G5A06: How does a capacitor react to AC? A. As the frequency...
177 views
Stu WØSTU
Complex Impedance Part 3: Putting It All Together
In Part 1 of this series, Just a Passing Phase, we defined the sine waveform of the most common AC signals, illustrated how AC voltage...
755 views
Stu WØSTU
Complex Impedance Part 2: Reacting Nicely!
In Part 1 of this series, It’s Just a Passing Phase, we defined the sine waveform of the most common AC signals, illustrated how AC...
354 views
Stu WØSTU
Complex Impedance Part 1: Just a Passing Phase
One of the more advanced topics in amateur radio electronics, and one that is often difficult for students to fully grasp, is complex...
546 views