Wikipedia:Federal Standard 1037C terms/telecommunications transmission terms

This is a list of telecommunications transmission terms derived from the Glossary of Telecommunication Terms published as Federal Standard 1037C. Please see the Federal Standard article for copyright-related issues, as not all parts of the source document are in the public domain.

Noise edit

ambient noise levelantenna noise temperatureatmospheric noisebackground noiseblue noisecarrier noise levelcarrier-to-noise ratio (CNR) — carrier-to-receiver noise density (C/kT) — channel noise levelcircuit noise levelclosed-loop noise bandwidthC-message weightingcosmic noiseeffective input noise temperatureequipment intermodulation noiseequivalent noise resistanceequivalent noise temperatureequivalent pulse code modulation noise (PCM) — equivalent satellite link noise temperaturefeeder echo noiseflat weightingFM improvement factorFM improvement thresholdfront-end noise temperatureHA1-receiver weightingidle-channel noiseimpulse noisein-band noise power ratiointermodulation noiseintrinsic noiseloop noisemodal noisemode partition noisenoisenotched noise144-line weighting144-receiver weightingphase noisephoton noiseprocess gainprorationpseudorandom noisepsophometric weightingquantizing noisequantum noisequantum-noise-limited operationrandom noisereceived noise powerreference noiseshot noisesignal-plus-noise-to-noise ratio ((S+N)/N) — signal-to-noise ratio (SNR) — signal-to-noise ratio per bitSINADsnowstereophonic crosstalkthermal noisetotal channel noisewhite noiseworst hour of the year

Transmission and propagation edit

absolute delayanalog transmissionanisochronousanomalous propagation (AP) — asynchronous transmissionatmospheric ductbabblebackscatteringbatched transmissionbit-stream transmissionburst transmissionchannelcoupled modescritical frequencycritical wavelengthcross-polarized operationDellinger effectdigital transmission groupdigital transmission systemdigital voice transmissiondiurnal phase shiftdouble-sideband transmission (DSB) — double-sideband reduced carrier transmission (DSB-RC) — double-sideband suppressed-carrier transmission (DSB-SC) — D regionductingduplex operationechoelectronic line of sightelevated duct region erlangflutterforward scatterFrequency of optimum transmission (FOT) — F regionFresnel zoneground wavegroup velocityhomogeneous claddingintermediate-field regionionosphereionospheric absorptionionospheric disturbanceionospheric forward scatterionospheric reflectionionospheric scatterionospheric turbulenceisochronous burst transmissionk-factorknife-edge effectline-of-sight propagation (LOS) — magnetic stormmagneto-ionic double refractionmaterial scatteringmaximum usable frequency (MUF) — Mie scatteringmultipathnear-field regionnear-vertical-incidence skywaveparallel transmissionpath clearancepath profileprimary service areapropagationpropagation constantpropagation modepropagation path obstructionpropagation time delaypulse broadeningquasi-analog transmissionradiation scatteringrayRayleigh fadingRayleigh scatteringreflecting layerreflectionrefracted rayrefractionrefractive index (n, ) — relative transmission levelright-hand (clockwise) polarized wavering latencyscatteringscintillationserial transmissionshadow losssimplex operationskip distanceskip zonesky wavesmooth Earthspace diversitysporadic Esunspotsurface wavesynchronous transmissiontime blocktrapped electromagnetic wavetropospheretropospheric scattertropospheric waveundisturbed dayvirtual heightwaveguide

Transmission lines edit

artificial transmission linebalanced linebuilding outbundlecableCategory 3Category 4Category 5coaxial cable (coax) — composite cabledirect-buried cabledirectional couplerelectrical lengthfiber optic cablefield wirefilled cablegroup delayhybrid cableland linelay lengthlinelong line (telecommunications)loopmediumnonloaded twisted pairon-premises wiringopen wirepaired cableplenum cablequadquadded cablereflectionreflection coefficient (RC) — return lossribbon cablesheathsheath milesshielded pairshielded twisted pairskin effectslopeslope equalizerspiral-four cablestrength membersymmetrical pairterminal impedanceterminationtransmission linetransverse electric and magnetic mode (TEM) — transverse electric mode (TE) — twin cableunbalanced lineunderground cableuniform transmission linevoltage standing wave ratio (VSWR) — waveguidezip-cord