Tags

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.

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Questions about the phone modes, most commonly SSB on HF and FM on VHF/UHF, but also including DSB-SC, PM, or AM.
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For questions specific to the FT8 mode
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Questions about the surface of the Earth as it affects radio propagation and antenna system design and installation. For questions about RF grounds and shields, counterpoises, virtual grounds, etc. us…
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Questions specific to rules, regulations, and practices in Canada.
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for questions that relate to the efficiency of a system or a component. The efficiency is the amount of useful work performed by the system or component (in radio applications, typically …
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Signal to Noise Ratio - any questions about improving or detecting an SNR or lowering your noise floor.
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American Radio Relay League (ARRL), the largest association of amateur radio enthusiasts in the USA
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an emergency preparedness/ contest run by ARRL in the United States and Canada the last full weekend of June each year.
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for questions relevant to vacuum tubes, also known as thermionic valves or simply valves.
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Low power operation, Typically 5 watts or less
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Questions related to writing software (programming) for Amateur Radio purposes.
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Questions specific to rules, regulations, and practices in European countries.
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Questions regarding the modification of existing radio equipment to add features or improve performace
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for questions relating to Slow-Scan Television (SSTV) operations.
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Questions relating to determining your location or the location of a QSO based on one of the various systems of measurement (lat/lon, GPS coordinates, ARRL section, CQ Zones, ITU Zones, Maidenhead Gri…
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for questions relating to protection of equipment from undesired external inputs such as overvoltages, RF coupling, and other potentially damaging inputs.
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the frequency range 3-30 kHz.
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Questions about shortwave listening and similar low-frequency reception activities.
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Questions about the practice of, and legal requirement to, identify your transmissions using your call sign.
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A function of receivers which mutes the audio when no signal is present; there are various and mode-dependent ways of making this determination. For PL/CTCSS in particular, use the [tone-squelch] tag.