Radio Terms And Abbreviations > 자유게시판

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WAZ: Abbreviation for "Worked All Zones," an award given by CQ Magazine to hams who contact other hams in 40 completely different geographic zones dividing up the globe. WAS: Abbreviation for "Worked All States," an award given by the ARRL to hams who contact different hams in all 50 states. QSL: Radiotelegraph abbreviation for "I verify," it refers to a card or letter confirming that a contact did happen between two stations or that a listener did indeed hear a certain station. Yagi: A directional antenna consisting of a dipole related to the receiver or transmitter and two extra components, a slightly longer reflector and a slightly shorter director. RF acquire: A control used to continuously fluctuate the sensitivity of a receiver. The net is organized and directed by a net control station, who calls the online to order, recognizes stations coming into and leaving the online, and authorizes stations to transmit.

Operation of a radio station without a human operator on the control level. Radio alerts propagated by refraction in the ionosphere. Propagation through random "scattering" of a signal immediately off the ionosphere overhead; scatter signals are often weak. A disturbed condition in the ionosphere attributable to launch of charged particles by the Sun which ends up in excessive absorption and poor radio propagation on most frequencies. SHF: Abbreviation for super high frequencies. UTC: Abbreviation for coordinated common time. A gaggle of stations that meet on a specified frequency at a certain time. A radio signal refracted more than one time between the transmitting and receiving stations. The process of how a radio sign travels from a transmitting station to a receiving station. A receiving circuit that provides additional amplification to weak indicators however at the cost of additional background noise and possible distortion. A receiver circuit that reduces electrical noise by quieting the receiver during noise pulses.

A modulation methodology in which the timing, amplitude, and/or spacing of pulses of a transmitters provider are diverse with a purpose to convey information. Communications which can be taking place with no perceptible delay. QRZ: Radiotelegraph abbreviation meaning "who is looking me?" Additionally it is used to solicit the subsequent contact in a collection of contacts. PLL: abbreviation for phase locked loop. FM: A time period used to discuss with section modulation. Radio alerts from 300 to 3000 kHz, though this term is often used to mean any radio signal within the AM broadcast band (540 to 1700 kHz). A circuit that tunes a receivers signal amplifying circuitry for maximum sensitivity on a desired frequency vary. A reception approach the place the service produced by a receivers BFO circuit or product detector is used to replace the provider of an AM sign for higher reception. It's indicated by a variety of decibels rejection at a frequency point away from the desired sign. A filter that makes use of a network of mechanical piezoelectric components to obtain high rejection of unwanted signals. A receivers selectivity measured on the 6 and 60 decibel rejection factors. A false signal produced within the receivers circuitry. SINPO: A code utilized in reception reports to charge the sign power, interference, propagation circumstances, atmospheric noise, and overall high quality of reception on a scale from 1 (lowest) to 5 (highest).

Propagation circumstances improve with lower measurement numbers. LSB: Abbreviation for lower sideband. TNC: Abbreviation for terminal node controller. A node that is a part of a couple of community and can be utilized to cross messages between those networks. Short for "intermodulation," this means false or spurious alerts produced by two or more alerts mixing in a receiver or repeater station. The shortest path by radio between any two factors on Earth. A connection to some extent of zero voltage, like the Earth. A connection between a two-approach radio unit and the public phone system. Slang for an incompetent, unskilled radio operator. Slang for a face-to-face meeting between two ham radio operators or radio hobbyists. A radio operators identify. A large gathering of ham radio operators and different radio hobbyists. A two-way radio unit aboard a ship or a station on land that communicates with ships. A station that at all times operates from a constant, specified land location.