The sideband decrease in frequency than the transmitters provider. A reception method where the carrier produced by a receivers BFO circuit or product detector is used to replace the provider of an AM sign for better reception. DXpedition: An organized effort by ham radio operators to put a rare location on the air, or a trip by shortwave listeners to a site for favorable DX reception. A receiver circuit consisting of a beat frequency oscillator and extra circuitry for enhanced reception of SSB alerts. Yagi: A directional antenna consisting of a dipole connected to the receiver or transmitter and two extra elements, a slightly longer reflector and a slightly shorter director. A directional antenna consisting of two one-wavelength "squares" of wire placed a quarter-wavelength apart. In FSK, the upper of the 2 frequencies used. A filter that rejects all frequencies above a sure point however which allows all decrease frequencies to move.
A filter that rejects all frequencies under a certain point but which permits all greater frequencies to cross. An antenna appropriate for operation on only one band of frequencies. Radio signals from 300 to 3000 kHz, though this term is often used to imply any radio sign within the AM broadcast band (540 to 1700 kHz). Radio indicators 300 kHz and lower in frequency, though this term is commonly used to imply any radio sign decrease than 540 kHz. GMT: Abbreviation for Greenwich imply time. SWR: Abbreviation for standing wave ratio. The ratio between two energy levels on a logarithmic scale. A excessive pitched "whistle" sound attributable to two carriers interfering with one another. The pitch of the "whistle" depends on the frequency distinction between the carriers. A device that receives multiple alerts inside a sure frequency vary and simultaneously retransmits them in another frequency range. A frequency that's an integer multiple (two occasions, three times, and so on.) of a lower frequency. LUF: Abbreviation for lowest usable frequency, the lowest frequency that may support propagation between two points. MW: Abbreviation for megawatt. IRC: Abbreviation for International Reply Coupon. FSK: Abbreviation for frequency shift keying.
UHF low: The frequency range from 450 to 470 MHz. A tuning method in transmitters and receivers which makes use of a couple of piezoelectric crystals to generate a variety of frequencies. A time period used to explain receivers and transmitters masking at least the frequency range of 500 kHz to 30 MHz and capable of operation in several completely different modes, together with AM, CW, and SSB. DXCC: Abbreviation for "DX Century Club," an award given by the ARRL to hams who contact different hams in at the least a hundred completely different nations. FEC: Abbreviation for ahead error correction, a FSK mode that transmits every character twice to avoid errors. A mode that shifts the stations carrier between two mounted frequencies to type characters. An antenna appropriate for operation on several completely different bands of frequencies. For greatest performance, the impedance of an antenna, the feedline, and the antenna connector on a radio should be approximately equal. An antenna that radiates, or receives finest, radio waves having their electric field parallel to the Earths floor. The opposition to the circulation of electric current and radio power; it's measured in ohms (W).
RST: A code utilized by ham radio operators to indicate a stations readability, signal strength, and tone of its Morse code signals. Slang for a face-to-face meeting between two ham radio operators or radio hobbyists. Slang for the maximum transmitter power authorized for ham radio operators. The direction of maximum radiation or obtained signal energy for a directional antenna. S-meter: A meter or bargraph that indicates the relative energy of a obtained sign. The apparent improve within the energy of a signal radiated or acquired by an antenna attributable to the antenna having higher efficiency in some directions than others. An antenna that transmits and receives equally effectively in all instructions. The frequency at which an antenna radiates or receives with maximum effectivity. MUF: Abbreviation for max usable frequency, the highest frequency that can assist propagation between two factors. Hz: Abbreviation for kilohertz. Unit equal to 1,000,000 hertz or 1000 kilohertz. Unit equal to a thousand hertz. Unit equal to 1,000,000 watts of transmitter power.
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Radio Terms And Abbreviations
by Blair Dyason (2025-01-12)
UHF low: The frequency range from 450 to 470 MHz. A tuning method in transmitters and receivers which makes use of a couple of piezoelectric crystals to generate a variety of frequencies. A time period used to explain receivers and transmitters masking at least the frequency range of 500 kHz to 30 MHz and capable of operation in several completely different modes, together with AM, CW, and SSB. DXCC: Abbreviation for "DX Century Club," an award given by the ARRL to hams who contact different hams in at the least a hundred completely different nations. FEC: Abbreviation for ahead error correction, a FSK mode that transmits every character twice to avoid errors. A mode that shifts the stations carrier between two mounted frequencies to type characters. An antenna appropriate for operation on several completely different bands of frequencies. For greatest performance, the impedance of an antenna, the feedline, and the antenna connector on a radio should be approximately equal. An antenna that radiates, or receives finest, radio waves having their electric field parallel to the Earths floor. The opposition to the circulation of electric current and radio power; it's measured in ohms (W).
RST: A code utilized by ham radio operators to indicate a stations readability, signal strength, and tone of its Morse code signals. Slang for a face-to-face meeting between two ham radio operators or radio hobbyists. Slang for the maximum transmitter power authorized for ham radio operators. The direction of maximum radiation or obtained signal energy for a directional antenna. S-meter: A meter or bargraph that indicates the relative energy of a obtained sign. The apparent improve within the energy of a signal radiated or acquired by an antenna attributable to the antenna having higher efficiency in some directions than others. An antenna that transmits and receives equally effectively in all instructions. The frequency at which an antenna radiates or receives with maximum effectivity. MUF: Abbreviation for max usable frequency, the highest frequency that can assist propagation between two factors. Hz: Abbreviation for kilohertz. Unit equal to 1,000,000 hertz or 1000 kilohertz. Unit equal to a thousand hertz. Unit equal to 1,000,000 watts of transmitter power.
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