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Combined display of all available logs of OpenHam Wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 03:54, 17 November 2023 Vbfcc talk contribs created page UTC (Created page with "Coordinated Universal Time, the agreed-upon baseline for the world's timezones. The mismatched initialism avoids favouring any particular language. It is technically a refinement of what remains widely known as GMT, Greenwich Mean Time, being the solar time at an observatory in Greenwich, England, which became prominent in the Age of Exploration. Abbreviated Z in the single-letter military time zone system, the corresponding name Zulu is widely used. The technical dif...")
• 03:41, 17 November 2023 Vbfcc talk contribs created page Electron (Created page with "Electrons are indivisible fundamental particles, generally found forming an orbiting shell surrounding the nucleus of all atoms. Their negative electrical charge is the fundamental unit charge of all matter, i.e., their charge is defined as being -1. In conductors, including most metals, the ability of electrons to jump from one atom to the next is the phenomenon of electrical current. A current of one ampere represents the flow of something like 10¹⁸ electro...")
• 03:37, 17 November 2023 Vbfcc talk contribs created page Current (Created page with "Current is the usual measure of the flow of electricity in a conductor. The standardized symbol is I (capital letter I, best written with serifs) and the common unit is ampere or amp, abbreviated A (or mA, µA, etc). Today we know that in metallic conductors it electrons that flow, and electrons are assigned has having negative charge; however the early experimenters standardized the definition of current before this was known, so that conventional current, as represente...")
• 03:27, 17 November 2023 Vbfcc talk contribs created page Station capture (Created page with "A phenomenon occuring in the receipt of concurrent FM signals on the same frequency, in which only the strongest signal will be used, and the weaker signals ignored such that the recipient will be unaware of them. By contrast, conflicting AM signals will usually interfere so that neither is intelligible, but recipients (though not the senders) may have an indication that two parties are attempting to transmit and can thus request re-transmission. This is often cited as t...")
• 18:39, 16 November 2023 Vbfcc talk contribs created page Spark gap (Created page with "A means of genreating radio waves in the earliest days of radio, prior to the development of controlled oscillators. Spark gaps radiate short bursts of wide-bandwidth RF energy. They were supplanted by constant wave transmitters as a far more practival method of radiocommunications. Spark gap generation of any measurable power would today be in conflict with regulations against interference with nearby communications.")
• 18:35, 16 November 2023 Vbfcc talk contribs created page SI (Created page with "Standing for Système Internationale, the official abbreviation for International System of Units. Informally used interchangeably with the term "the metric system", properly speaking the SI standard favours certain metric units such as the Joule (1 kg·m²·s⁻²) and deprecates others such as the erg (1 g⋅cm²⋅s⁻²). It is regulated and developed by three international bodies, each of them composed of representatives of member countries.")
• 18:32, 16 November 2023 Vbfcc talk contribs created page Volt (Created page with "''The official name of this unit is volt. Owing to technical constraints, page titles in this wiki are capitalized.'' The '''volt''' is the SI unit of electromotive force, of electric potential, and of electric potential difference. In casual reference these all three are commonly called "voltage", though formally this word should be used only for the lattermost. The abbreviation is capital V. There is no corresponding non-SI unit. It is named after Alessandro Vol...")
• 18:29, 16 November 2023 Vbfcc talk contribs created page Doppler shift (Created page with "The phenomenon in which the wavelength of a wave is compressed ("blue shifted") to an observer approaching the wave's source, and extended ("red shifted") to one retreating from the wave's source (the perceived frequency thus being raised or lowered respectively). In radiocommuncations it becomes significant with high-velocity sources such as satellites and other spacecraft. A relative speed difference of 100 km/h (about 62 mph) will cause a perceived difference of about...")
• 18:17, 16 November 2023 Vbfcc talk contribs created page IEC (Created page with "The International Electrotechnical Commission, an international standards-setting body that concerns itself with electrical and electronic matters. Many of its standards are published jointly with ISO.")
• 18:17, 16 November 2023 Vbfcc talk contribs created page ISO (Created page with "An international standards-setting body, known in English as the International Organization for Standardization. The name ISO is language-neutral and does not represent the organization's name in any language. Headquartered in Geneva, it is steered by representation of the national standards bodies of many countries. Many electronic standards are developed jointly with the IEC.")
• 18:14, 16 November 2023 Vbfcc talk contribs created page ITU (Created page with "The International Telecommunication Union, an agency of the United Nations (though pre-dating it, having originally been formed as the International Telegraph Union) that co-ordinates various activities including the worldwide allocation of radio spectrum. Its standards-setting subdivision is the ITU-T, which has subsumed the former CCITT.")
• 18:21, 15 November 2023 Vbfcc talk contribs created page Radiotelephony (New page, definition of term)
• 23:46, 14 November 2023 User account Vbfcc talk contribs was created