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.
Amateur radio operation on the Internet-enabled D-STAR digital voice and data protocol.
For questions specific to the FT8 mode
for questions relating specifically to the amateur radio UHF allocation around 430 MHz.
Questions about fox hunting - using radio direction finding to locate a hidden transmitter - including the rules and necessary equipment.
A voluntary, not regulated, division of an amateur radio band into sections for specific modes or types of operation.
Questions about the phone modes, most commonly SSB on HF and FM on VHF/UHF, but also including DSB-SC, PM, or AM.
Questions specific to rules, regulations, and practices in Canada.
Low power operation, Typically 5 watts or less
Questions related to writing software (programming) for Amateur Radio purposes.
for questions relevant to vacuum tubes, also known as thermionic valves or simply valves.
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 …
Questions specific to rules, regulations, and practices in European countries.
Controlling a transceiver using software running on a separate personal computer. See also: [software-defined-radio], [audio-interface].
an emergency preparedness/ contest run by ARRL in the United States and Canada the last full weekend of June each year.
Satellite navigation systems, including GPS. Questions should be related either to amateur radio operations (e.g. APRS tracking) or the theory of positioning using radio signals; questions merely abou…
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…
Questions about the use and theory of spectrum analyzers. For spectrum displays that are not test equipment, use [panadapter-and-waterfall] instead.
for questions relating to Slow-Scan Television (SSTV) operations.
American Radio Relay League (ARRL), the largest association of amateur radio enthusiasts in the USA
for questions relating to protection of equipment from undesired external inputs such as overvoltages, RF coupling, and other potentially damaging inputs.
Questions regarding the modification of existing radio equipment to add features or improve performace
Signal to Noise Ratio - any questions about improving or detecting an SNR or lowering your noise floor.
Questions about the practice of, and legal requirement to, identify your transmissions using your call sign.