From news.cs.tut.fi!news.funet.fi!news.tele.fi!uunet!gatech!destroyer!cs.ubc.ca!alberta!nebulus!ve6mgs!rec-radio-info Wed Jun 2 10:06:20 EET DST 1993 Article: 1207 of rec.radio.info Xref: news.cs.tut.fi rec.radio.info:1207 rec.radio.shortwave:20487 Path: news.cs.tut.fi!news.funet.fi!news.tele.fi!uunet!gatech!destroyer!cs.ubc.ca!alberta!nebulus!ve6mgs!rec-radio-info Date: Tue, 1 Jun 1993 07:55:38 GMT From: lsevim@vnet.IBM.COM (Levent Sevim) Message-ID: Supersedes: Lines: 433 Subject: SW Abbreviations and Terms Newsgroups: rec.radio.info,rec.radio.shortwave Followup-To: rec.radio.shortwave Approved: rec-radio-info@ve6mgs.ampr.ab.ca = SW ABBREVIATIONS AND TERMS = *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* A *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* A : Ampere. AACS : Airways & air communications service. ABC : Australian Broadcasting Company (domestic service). AC : Alternating current. AC/DC : Alternating current/direct current. ACCESS : Aircraft communication electronic signaling system. ACSA : Army Communications Satellite Agency (U.S.). AF : Audio frequency. AFC : Automatic frequency control. AFCEA : Armed Forces Communications and Electronics Association. AFCS : Air Force Communications Service (USAF). AFRTS : Armed Forces Radio and Television Service. AFSATCOM : Air Force satellite communications (USAF). AFSK : Audio frequency shift keying. AGACS : Automatic ground to air communication system. AGC : Automatic gain control. AIR : All India Radio (domestic and external services). AIRCOM : Aerospace communications complex (AFCS). AIRCOM : Airways communications system. AM : Amplitude modulation. A.M. : Ante Meridiem (before noon). AMPS : Cellular radio (USA, AT&T). AMSAT : International association dedicated to promoting amateur space communication. AMSAT : American Satellite Corporation. AMTOR : Amateur Teleprinting Over Radio. AN/TRC : Army-Navy/transportable radio communications. ARCO : Airborne radio code operator. ARINC : Aeronautical Radio Inc. ARRL : American Radio Relay League. ARTHUR : Automatic radio communication system for traffic emergency. ARQ : Automatic repeat request used in AMTOR. ARRL : American Radio Relay League. ASCII : American Standart Code for Information Interchange. ASSC : American Satellite and Space Communications (USA). ASTRO : Artificial satellite time + radio orbit. ATT : Attenuator. ATC : Air Traffic Control. ATPT : AT&T and Philips Telecommunication. ATSL : Advanced Telecommunications Systems Laboratory. ATV : Amateur Television. AVC : Automatic volume control. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* B *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* BABT : British Approval Board for Telecommunications. BALUN : Balanced-to-unbalanced matching transformer. BANDPASS FILTER : a filter that allows only select band of frequencies to pass. BANDWITH : Frequency space occupied by a signal. BAUD : The unit of digital-signal speed. BBC : British Broadcasting Corporation. BBS : Bulletin Board System. BCI : Broadcast radio interference. BFO : Beat-frequency oscillator. BIRE : British Institution of RADIO Engineers. BNC : Bayonet Niell-Concelman (standard connector type used on COAX cable, named for its inventors). Broadcast Commun. : Commnunications intended to be received by general public with no restrictions. BRT : Belgische Radio et Televisie, Belgium. BTD : Bureau for Telecommunications Development (ITU). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* C *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* CAS : Channel associated signalling (telecommunications). CATV : Community Antenna Television ("cable TV"). CATVI : Cable television interference. CB : Citizens Band radio. CBC : Canadian Broadcasting Corporation. CBMS : Computer-based message system. CDLC : Cellular data link control (cellular radio). CMD : An on-screen packet TNC prompt. COAXIAL CABLE : A feedline with one conductor completely surrounding the other. COMSAT : Communications Satellite Corporation. COMSEC : Communications security (military). CPU : Central processing unit. CQ : Call to everyone. CRT : Cathode-ray tube. CTCSS : Continuous tone-coded squelch system. CTIA : Cellular Telecommunications Industries Association. CURTS : Common user radio transmission sounder. CW : Continous wave. CW/PD : Continuous wave/pulse Doppler. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* D *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* DARTS : Data radio transmission system D LAYER : Layer of the ionosphere that has little effection shortwave radio propagation.Lowest layer of ionosphere. dB : Decibel (1/10 of a Bell); unit for the ratio of two power measurements. dBd : Decibels above or below a dipole antenna. dBi : Decibels above or below a isoptropic antenna. DC : Direct current. DIGIPEATER : A store-and-forward digital repeater which will receive and transmit a data packet on the same frequency. DIPOLE : Antenna often used as a standart for calculating gain. DORIS : Data over radio in service (AB Electrolux, Stockholm, Sweden DOWNLINK : Channel used for satellite-to-earth communications. DSB : Double side band. DSBSC : Double side band - suppressed carrier. DTMF : Dual-tone multifrequency. DUMMY LOAD : A device that connects to a transreceiver that allows user to test a radio without actually transmitting a signal. DX : Distant and/or rare station. DXer : A person who actively specializes in tuning distant stations. DVIS : Digital voice intercommunication system (NASA). DVOR : Doppler very high frequency omnidirectional radio. DW : Deutche Welle, (ex West) Germany. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* E *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* ECPA : Electronic Communications Privacy Act. ECSSB : Exaulted-carrier single sideband. EME : Earth-moon-earth; using the moon as a passive reflector to establish a signal path; moonbounce. EPRIB : Emergency position indicating radio beacon. ERMES : European radio message system. ERS : Extra-galactic radio sources. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* F *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* F layer : There are two F layers in the ionosphere; the F1 and F2.The lF layer is responsible for reflecting radio waves to earth.Amount of reflectivity depends upon se veral factors including time of day,year, and amount of sunspot activity. FAA : Federal Aviation Administration (USA). FAX : Facsimile; transmitting or receiving a visiual image via wire or radio. FCC : Federal Communication Commission (USA) FCR : France Cables et Radio. FEBC : Far Eastern Broadcasting Company. FET : Field-effect transistor. FM : Frequency modulation. FRF : Fine radio frequency. FSK : Frequency-shift keying. FTS : Federal telephone/telecommunications system (USA). FTS-2000 : Federal telecommunications system-2000. FTTC : Field telecommunications technical council. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* G *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* GMRS : General Mobile Radio Service. GROUND : Common zero-voltage reference point. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* H *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* HAM : Amateur radio, or an amateur radio operator. HARMONICS : Signals from a transmitter ocurring at multiples of the ba sic frequency. HERTZ (Hz) : Basic unit of frequency measurement equal to 1 complete cyc le in one second. HF : High Frequency (3-30 MHz). HCJB : Voice of the Andes. HLR : Home location register (cellular radio). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* I *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* IARU : International Amateur Radio Union. IARN : International Amateur Radio Network. IC : Integrated circuit. IERE : Institution of Electronic + Radio Engineers. IRAC : Interdependent radio advisory committee. IRC : International Reply Coupon. IRE : Institute of Radio Engineers. IF : Intermediate frequency; resultant frequency from heterodyn ing carrier frequency with oscillator; mixing all incoming signals to one intermediate frequency enhances amplifying, filtering and processing signals.It is frequently desirable to have more than on IF. IONOSPHERE : Layers of charged particles above the earth's atmosphere that are responsible for reflecting radio waves back to earth. ISOTROPIC : Imaginary "Single Point" antenna used calculate gain. ITU : International Telecommunications Union. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* J *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Jamming : Deliberate transmission fo radio signals with the intent of rendering another signal ineffective. JFET : Junction field-effect transistor. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* K *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* KHz : Kilohertz (1000 Hz). KW : Kilowatt (1000 W ). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* L *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* LCD : Liquid crystal display. LED : Light-emitting diode. LORAN : Long Range Aid to Navigation. LSB : Lower sideband. LW : Long wave. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* M *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* MARS : Military affiliated radio system. Ma : Miliampere (1/1000 A). MF : Medium frequency (300-3000 KHz). MHz : Megahertz (1,000,000 Hz or 1000 KHz). MILCOMSAT : Military communications satellite (U.S.). MRSG : Mobil Radio Study Group (ECTEL). MPT : Ministry of Posts and Telecommunications (Japan). mV : Millivolt (1/1000 V). mW : Milliwatt (1/1000 W). MW : Medium wave. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* N *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* NASA : National Aeronautics and Space Administration (USA). NB : Narrow band. NHK : Japanese broadcasting authority. NiCd : Nicel cadmium; usually refers to rechargeable battery packs. NIST : National Institute of Standarts and Technology. NOAA : North Atlantic and Atmospheric Administration. NPR : National public radio. NTS : National Traffic System. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* O *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Ohm : A unit of resistance. OM : Old Man, any male (Amateur Radio term). OSCAR : Orbiting satellite carrying amateur radio. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* P *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* PBBS : Packet Bulletin Board System. PLL : Phase-lock loop; used as one section of a digital fre quency oscillator. P.M. : Post Meridiem (after noon). PMR : Private mobile radio. Potentiometer : Continuously variable resistor often used for adjusting levels, as in volume control. PROM : Programable read-only memory; integreated circuit. PSPR : Peach State Public Radio (Georgia, USA). PTT : Push to talk; usually switch on the microphone that activi ties the station transmitter. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Q *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* QAZ : Thunderstorm here. QPSK : Quadrature Phase-Shift keying. QRP : Low power operation. QRA : Exact position of station. QRG : Exact frequency. QRH : Frequency varies. QRI : Tone varies. QRJ : Good reception. QRL : Busy. QRM : Transmitter interferences. QRN : Atmospheric interferences. QRO : Increase power. QRP : Decrease power. QRQ : Increase speed. QRS : Decrease speed. QRT : Tuning. QRU : Nothing left. QRV : Ready. QRW : I will tell. QRX : Wait. QRZ : You are called. QSA : Readability 1 - 5. QSB : Volume varies. QSL : Reception confirmation. QSO : Radio connection. QSO : Radio connection. QSP : Resend to others. QSY : Frequency switch. QSZ : Send every word twice. QTH : Position of station. QTR : Exact time. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* R *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* RADAR : Radio detection and ranging. RAPID : Radio access Personal Computer interactive display (pro.) RAM : Random Access Memory. RANCOM : Random communication satellite. RACES : Radio Amateur Civil Emergency Service. RAI : Radiotelevisione Italia. RCI : Radio Canada International. RC : Radio control. RCA : Radio Corporation of America. RDF : Radio direction finding. REPEATER : Automatic relay station. RETMA : Radio-Electronics-Television Manufacturers Association. RF : Radio frequency. RFFWS : Radio frequency failure warning system. RFI : Radio frequency Interference. RFI : Radio France International. RFNY : Radio Free New York. RGS : Radio guidance system. RIF : Radio influence voltage. RIM : Radio installation memorandum (military). RMI : Radio magnetic indicator. RNE : Radio Nacional d'Espana. RNI : Radio Netherlands International. RNZ : Radio New Zealand. ROM : Read-only memory. ROGER : I understand. RPE : Radio paging equipment. RSL : Radio Standards Laboratory (USA,NIST, Boulder CO). RTMA : Radio Television Manufacturers Association. RTP : Radio transmit pulse. RTTY : Radio teletypewriter telecommunications. RX : Receiver / Transmitter. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* S *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* SATCOM : Satellite communications. SATCOM : US Army Satellite Communications Agency. SATCOMA : Satellite communication agency. SAREX : Shuttle amateur radio experiment (NASA). Selectivity : Ability of a receiver to reject signals adjacent to tuned signal. Sensitivity : A receivers ability to receive weak signals. SCS : Satellite communication system. SINPO : A numerical rating system (1-5) used by radio listeners. when reporting signal quality to broadcasters.Signal,inter ference,noise,propagation and overall quality. SNI : Signal to noise ratio. SRI : Swiss Radio International. SSB : Single sideband; efficient form of voice transmission with one sideband and carrier frequency removed before transmis sion. SSBSC : Single side band - suppressed carrier. SSTV : Slow-scan television. STS : Satellite telecommunications simulator (USAF). STS : Ship-to-shore. Synch. Detection : Synchronous detection is an ingenious method of processing an AM signal to improve audio quality and reduce interfe rence from adjacent stations. SW : Shortwave. SWL : Shortwave listener. SWR : Standing wave radio; figure of merit indicating degree of match for antenna and feedline at some particular frequency. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* T *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* TCI : Telecommunication Company of Iran. TD2 : Radio, microwave carrier system. TELCOM : Telecommunication. TELECOM : Telecommunications. TELECOM : Australian Telecommunications Agency. TOR : Telex over radio. TNC : Terminal Node Controller is the combined modem and assembler/disassembler.The interface device between the computer terminal and RF transreceiver.The TNC assembles TNC : Threaded Niell-Concelman (standard connector type used on COAX cable, named for its inventors). and disassembles packets and provides error detection. TTL : Transistor-Transistor Logic. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* U *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* UER : Union Europeenne de Radiodiffusion. UHF : Ultra high frequency (300 MHz - 3 GHz). Uplink : Channel used for earth-to-satellite communications. URSI : International Scientific Radio Union USASCA : U.S. Army Satellite Communications Agency. Utility Stations : Stations other than broadcast, or amateur stations; these stations are not intended to be heard by the public.They include aircraft communications, radiotelephone, mairine, embassy, and military communications. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* V *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* V : Volt (unit of electrical force). VAC : Volts Alternating Current. VARR : Visual-aural radio range. VCO : Voltage-controller oscillator. VFO : Variable frequency oscillator. VHF : Very high frequency (30-300 MHz). VLF : Very low frequency (3-30 KHz). VLR : Visitor location register (cellular radio). VOA : Voice Of America. VOFC : Voice Of Free China, Taiwan. VOX : Voice-operated switch. VSWR : Voltage standing wave ratio. VTVM : Vacuum-tube voltmeter. VXO : Variable crystal oscillator. *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* W *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* WARC : World Administrative Radio Conference. WEFAX : Weather facsimile, reconstructed satellite pictures and photographs. WPM : Words per minute. WILCO : Will comply (used after Roger, radio communications). WWV : National Bureau of Standards radio station (time signals). WWVB : NIST radio station (broadcasts time signals). WWVH : NIST radio station (broadcasts time signals- Hawai). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* X *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* XCVR : Transreceiver. XFMR : Transformer. XTAL : Cyristal. XVTR : Transverter; enables a transreceiver to operate on a frequ ency band other than the one it was design for. XYL : Ex-young lady, one's wife (Amateur Radio term). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Y *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Yagi antenna : A directional beam antenna used by ham radio operators. YL : Young Lady, any female, especially a single one (Ama. Ra.). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* 73's : Goodbye, farewell, good luck (Amateur Radio term). 88's : Love and Kisses (Amateur Radio term). *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* +------------------------------------------------------------+ | Levent Sevim ' Vnet-> LEVENTS at ISTVM2 | | IBM Turk Ltd ' Iea-> TRIBM7VM at IBMMAIL | | Finance Department ' Mvs-> LEVENT at ISTMVS | | Buyukdere Cad. Levent ' Internet-> LSEVIM@VNET.IBM.COM | | Istanbul 80613 ' Voice-> 90.1.2800900 Ext1147 | | TURKIYE ' Fax-> 90.1.2780437 | +------------------------------------------------------------+