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Amateur Extra: Variable-Length Coding

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Which of the following HF digital modes uses variable-length…

General: Sine Wave Oscillators

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What are the basic components of virtually all sine wave oscillators? A.…

Technician: Definition of Capacitor

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What type of electrical component consists of two or more conductive…

Amateur Extra: Using ASCII Code

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What is one advantage of using ASCII code for data communications? A.…

General: Uses For An Antenna Analyzer

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What is a use for an antenna analyzer other than measuring the…

Technician: Current Flowing in a Resistor

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What is the current flowing through a 24-ohm resistor connected…

HF "Go Kit" and Winter Field Day 2017

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Well, I thought I'd get the HF "Go kit" out, set up and make…

General: Peak Inverse Voltage

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What is the peak-inverse-voltage across the rectifier in a half-wave…

General: Station Log Information

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What information is traditionally contained in a station log?…