A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
Questions about fixed impedance matching networks, the necessity of impedance matching, etc.
for questions related to vertical antennas, the construction, characteristics and performance.
for questions about specific radio procedures and practices. These are "How do I...?" questions, not about equipment or other issues.
a digital protocol used to transmit GPS position reports, telemetry, weather reports and text messages between APRS compatible devices and software.
Questions about amplifiers, typically RF power amplifiers. For low-noise amplifiers (LNAs) consider using the "lna" tag.
Questions about RF feed lines. Also tag with coaxial-cable if the feed line in question is a coaxial cable; also tag with connectors if the question is about connectors for an RF feed line.
Questions about acronyms, words, phrases, or other terminology specific to amateur radio.
Questions about the rules, processes and procedures in amateur radio contesting.
for questions relating specifically to the amateur radio VHF allocation around 144 MHz.
Questions about noise in the sense of that inevitable component of any real signal. For questions about avoiding or eliminating interference from manmade sources, use [rfi] instead.
Single Side Band - Amplitude Modulated signals transmitted using only one side band, often with suppressed carrier.
Questions about RF connectors, including the properties of specific types and how to use them.
The common name for a Yagi-Uda array antenna, a directional antenna consisting of a dipole (the driven element), a reflector and zero or more directors. The more directors, the more gain and the narr…
A manufacturer of radio equipment, including ham radios and accessories.
Questions relating to the setup and use of antenna tuners, the virtues and shortcomings of various types of tuners, etc.
An International manufacturer of radio equipment, Based in Japan. Their products include equipment for radio amateurs, pilots, maritime applications, land mobile professional applications and scannin…
Questions about the practices of the Federal Communications Commission (FCC), a US government agency that regulates communications, including amateur radio. For questions not about the FCC per se, use…
Questions related to sending digital data over amateur radio including hardware, protocols, and related software.
Questions about amateur radio emergency communication, either in support of emergency services or for use to report an emergency.
Questions which may involve math, including calculations about signal levels, the math theory of certain modulations or modes, or anything else.