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 related directly to the mode of communication (SSB, CW, digital, etc).
83 questions
Questions about Frequency Modulation, the analog modulation scheme commonly used for voice on VHF and UHF frequencies.
74 questions
Automatic Packet Reporting System is a digital protocol used to transmit GPS position reports, telemetry, weather reports and text messages between APRS compatible devices and software.
67 questions
Programs and applications that are used to assist with Amateur Radio operations.
67 questions
Questions about amplifiers, typically RF power amplifiers. For low-noise amplifiers (LNAs) consider using the "lna" tag.
67 questions
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.
62 questions
61 questions
Questions about acronyms, words, phrases, or other terminology specific to amateur radio.
60 questions
for questions about specific radio procedures and practices. These are "How do I...?" questions, not about equipment or other issues.
60 questions
Single Side Band - Amplitude Modulated signals transmitted using only one side band, often with suppressed carrier.
54 questions
Questions relating to the setup and use of antenna tuners, the virtues and shortcomings of various types of tuners, etc.
54 questions
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.
54 questions
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…
53 questions
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…
52 questions
for questions of radio theory and/or the underlying physics.
51 questions
A manufacturer of radio equipment, including ham radios and accessories.
50 questions
Questions about bandwidth used by various modes, theoretical questions about bandwidth, and questions about other amateur radio aspects of bandwidth.
49 questions
for questions relating specifically to the amateur radio VHF allocation around 144 MHz.
48 questions
Kenwood is a manufacturer of amateur radio equipment.
47 questions
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…
46 questions
Questions about the rules, processes and procedures in amateur radio contesting.
44 questions
43 questions
Questions about RF connectors, including the properties of specific types and how to use them.
42 questions
Questions related to sending digital data over amateur radio including hardware, protocols, and related software.
40 questions
Questions related to operating on frequencies above 902MHz.
39 questions
Questions relating to equipment for Amateur Radio operation.
37 questions
Questions about amateur radio emergency communication, either in support of emergency services or for use to report an emergency.
36 questions
Equipment which measures standing wave ratio (SWR). See also [antenna-analyzer]. For questions about fixing “high SWR” problems, see [impedance-matching] instead.
36 questions
35 questions
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