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

ambient noise level -- antenna noise temperature -- atmospheric noise -- background noise -- blue noise -- carrier noise level -- carrier-to-noise ratio (CNR) -- carrier-to-receiver noise density (C/kT) -- channel noise level -- circuit noise level -- closed-loop noise bandwidth -- C-message weighting -- cosmic noise -- effective input noise temperature -- equipment intermodulation noise -- equivalent noise resistance -- equivalent noise temperature -- equivalent pulse code modulation noise (PCM) -- equivalent satellite link noise temperature -- feeder echo noise -- flat weighting -- FM improvement factor -- FM improvement threshold -- front-end noise temperature -- HA1-receiver weighting -- idle-channel noise -- impulse noise -- in-band noise power ratio -- intermodulation noise -- intrinsic noise -- loop noise -- modal noise -- mode partition noise -- noise -- notched noise -- 144-line weighting -- 144-receiver weighting -- phase noise -- photon noise -- process gain -- proration -- pseudorandom noise -- psophometric weighting -- quantizing noise -- quantum noise -- quantum-noise-limited operation -- random noise -- received noise power -- reference noise -- shot noise -- signal-plus-noise-to-noise ratio ) ((S+N)/N) -- signal-to-noise ratio (SNR) -- signal-to-noise ratio per bit -- SINAD -- snow -- stereophonic crosstalk -- thermal noise -- total channel noise -- white noise -- worst hour of the year

Transmission and propagation

absolute delay -- analog transmission -- anisochronous -- anomalous propagation (AP) -- asynchronous transmission -- atmospheric duct -- babble -- backscattering -- batched transmission -- bit-stream transmission -- burst transmission -- channel -- coupled modes -- critical frequency -- critical wavelength -- cross-polarized operation -- Dellinger effect -- digital transmission group -- digital transmission system -- digital voice transmission -- diurnal phase shift -- double-sideband transmission (DSB) -- double-sideband reduced carrier transmission (DSB-RC) -- double-sideband suppressed-carrier transmission (DSB-SC) -- D region -- ducting -- duplex operation -- echo -- electronic line of sight -- elevated duct region erlang -- flutter -- forward scatter -- FOT -- F region -- Fresnel zone -- ground wave -- group velocity -- homogeneous cladding -- intermediate-field region -- ionosphere -- ionospheric absorption -- ionospheric disturbance -- ionospheric forward scatter -- ionospheric reflection -- ionospheric scatter -- ionospheric turbulence -- isochronous burst transmission -- k-factor -- knife-edge effect -- line-of-sight propagation (LOS) -- magnetic storm -- magneto-ionic double refraction -- material scattering -- maximum usable frequency (MUF) -- Mie scattering -- multipath -- near-field region -- near-vertical-incidence skywave -- parallel transmission -- path clearance -- path profile -- primary service area -- propagation -- propagation constant -- propagation mode -- propagation path obstruction -- propagation time delay -- pulse broadening -- quasi-analog transmission -- radiation scattering -- ray -- Rayleigh fading -- Rayleigh scattering -- reflecting layer -- reflection -- refracted ray -- refraction -- refractive index (n, ) -- relative transmission level -- [[right-hand [clockwise] polarized wave]] -- ring latency -- scattering -- scintillation -- serial transmission -- shadow loss -- simplex operation -- skip distance -- skip zone -- sky wave -- smooth Earth -- space diversity -- sporadic E -- sunspot -- surface wave -- synchronous transmission -- time block -- trapped electromagnetic wave -- troposphere -- tropospheric scatter -- tropospheric wave -- undisturbed day -- virtual height -- waveguide

Transmission lines

artificial transmission line -- balanced line -- building out -- bundle -- cable -- Category 3 -- Category 4 -- Category 5 -- coaxial cable (coax) -- composite cable -- direct-buried cable -- directional coupler -- electrical length -- fiber optic cable -- field wire -- filled cable -- group delay -- hybrid cable -- land line -- lay length -- line -- long line (telecommunications) -- loop -- medium -- nonloaded twisted pair -- on-premises wiring -- open wire -- paired cable -- plenum -- quad -- quadded cable -- reflection -- reflection coefficient (RC) -- reflection loss -- return loss -- ribbon cable -- sheath -- sheath miles -- shielded pair -- shielded twisted pair -- skin effect -- slope -- slope equalizer -- spiral-four cable -- strength member -- symmetrical pair -- terminal impedance -- termination -- transmission line -- transverse electric and magnetic mode (TEM) -- transverse electric mode (TE) -- twin cable -- unbalanced line -- underground cable -- uniform transmission line -- voltage standing wave ratio (VSWR) -- waveguide -- zip-cord