frequency spectrum, <in telecommunication>

frequency band

bandwidth

bandwidth, <of a transmission channel>

x dB bandwidth (of a signal)

baseband

natural frequency

audio frequency

video frequency

radio frequency

frequency departure

frequency shift

frequency drift

frequency offset

oscillation

wave

emission, <phenomenon>

sending, <of a signal>

emission, <process in radiocommunication>

radiation, <waves or particles>

electromagnetic radiation, <phenomenon>

root-power quantity

level (of a time varying quantity)

attenuation

gain

absorption

propagation coefficient

attenuation coefficient

phase-change coefficient

phase delay

phase velocity

wavelength (in a given direction)

refractive index

group delay

envelope delay

group velocity

envelope velocity

pulse

unidirectional pulse

pulse magnitude

pulse duration

rise time (of a pulse)

decay time (of a pulse)

pulse repetition frequency

pulse spacing

pulse duty factor

rectangular pulse

pulse train

square pulse train

sine-squared pulse

pulse shaping

pulse regeneration

signal

analogue signal

symmetrical (alternating) signal

discretely timed signal

digital signal

sample, <of a signal>

quantization

time base

timing signal

cyclic timing signal

timescale

cyclic timescale

isochronous, adj

isochronism

anisochronous, adj

anisochronism

synchronous

synchronism

non-synchronous

decision content

shannon

hartley

dynamic range (of a signal)

compression

to compress

expansion

to expand

companding

syllabic companding

pre-emphasis

de-emphasis

limiting

clipping

slicing

base limiting

centre clipping (inappropriate term)

clamping

automatic gain control

gating

(signal or noise) spectrum

spectral component

amplitude spectrum

phase spectrum

spectral representation

continuous spectrum

line spectrum

spectral line

power spectrum

energy spectral density

power spectral density

(total) harmonic factor

analytic signal

quadrature signal

amplitude, <of a signal>

phase, <of a signal>

instantaneous frequency (of a signal)

signal element

digit

binary digit

binary figure

n-ary digit

n-bit byte

doublet

triplet

byte

character

code

to encode

encoding

to decode

decoding

code conversion

code word

redundant code

error detecting code

error correcting code

significant condition

number of significant conditions

digit rate

baud

modulation

to modulate

carrier

modulating signal

modulated signal

carrier (component)

multiple modulation

main carrier

intermediate carrier

sub-carrier

sideband

upper sideband

lower sideband

modulation with a fixed reference

differential modulation

linear modulation

amplitude modulation

amplitude shift keying

modulation factor

overmodulation

under-modulation

full carrier

reduced carrier

suppressed carrier

double sideband

single sideband , adj

independent sideband

vestigial sideband

vestigial sideband (qualifying term)

angle modulation

(instantaneous) phase deviation

peak (phase) deviation

(instantaneous) frequency deviation

peak (frequency) deviation

peak-to-peak (frequency) deviation

phase modulation

frequency modulation

(frequency) deviation ratio

phase shift

phase shift keying

differential phase shift keying

multiple phase shift keying

quadrature phase shift keying

phase inversion modulation

coherent modulation

frequency shift (in keying)

frequency shift keying

n-condition frequency shift keying

minimum (phase frequency) shift keying

modulation index, <in angle modulation>

modulation by pulses

pulsed carrier

modulation of pulses

pulse amplitude modulation

pulse time modulation

pulse position modulation

pulse duration modulation

pulse frequency modulation

pulse code modulation

differential pulse code modulation

delta modulation

pulse interlacing

quadrature (amplitude) modulation

frequency translation

frequency inversion

detection

demodulation

carrier recovery

amplitude demodulation

linear demodulation

coherent demodulation

square law detection

frequency demodulation

phase demodulation

bel

decibel

neper

absolute power level

relative power level

absolute voltage level

transmission loss

insertion loss (of a two-port device)

insertion gain (of a two-port device)

available power

exchangeable power

available power gain (of a two-port device)

exchangeable power gain (of a two-port device)

matching (between a load and a source)

reflection loss

transducer loss (of a two-port device)

transducer gain (of a two-port device)

composite loss (of a two-port device)

composite gain (of a two-port device)

incident current

incident wave

reflected current

reflected wave

complex reflection factor

return loss

unit pulse response

transfer function (1)

transfer function (2)

frequency response

transfer impedance

transfer admittance

transfer immittance

transfer ratio

amplitude/amplitude characteristic

amplitude/frequency characteristic

phase/frequency characteristic

delay/frequency characteristic

transmission performance

error ratio

error control

error detection

error correction

distortion, <of a signal>

linear

linear distortion

equalization (in analogue transmission)

equalization (in digital transmission)

pre-equalization

amplitude/frequency distortion

attenuation equalization

phase/frequency distortion

phase equalization

group delay/frequency distortion

group delay equalization

non-linear

non-linearity distortion

amplitude/amplitude distortion

phase/amplitude distortion

differential phase distortion

differential amplitude distortion

harmonic distortion

total harmonic distortion

non-linearity correction

intermodulation

intermodulation product

combination frequency

intermodulation product order

intermodulation distortion

quantizing distortion

feedback

positive feedback

negative feedback

feedforward

jitter

time distortion

leading-edge broadening

trailing-edge broadening

transient, adj and noun

overshoot

transient, noun

wanted signal

unwanted signal

noise (in telecommunication)

electromagnetic disturbance

radio noise

radio-frequency disturbance

impulsive noise

recurrent (impulsive) noise

continuous noise

quasi-impulsive noise

natural noise

man-made noise

intrinsic noise

external noise

background noise

basic noise

click (in telecommunications)

buzz (in telecommunications)

crackle (in telecommunications)

hum (in telecommunications)

telegraph noise

switching noise

microphonics

parasitic oscillation

singing

singing point

birdies (in telecommunications)

intermodulation noise

electromagnetic interference

interfering signal

interference (to a wanted signal)

phase interference

intersymbol interference

interchannel interference

cross-modulation

sideband interference

echo (in telecommunication)

random noise

white noise

coloured noise

weighted noise

psophometrically weighted noise

triangular noise

pink noise

thermal noise

shot noise

flicker noise

1/f noise

quantum noise

gaussian noise

equivalent noise voltage (of a one-port device)

(equivalent) noise resistance (of a one-port device)

(exchangeable) noise power (of a one-port device)

spot noise temperature, <of a one-port>

mean noise temperature (of a one-port device)

equivalent spot noise temperature, <of a linear two-port>

spot noise factor, <of a linear two-port device>

mean (equivalent) noise temperature (of a linear two-port device)

(mean) noise factor (of a linear two-port device)

effective noise bandwidth (of a linear two-port device)

signal-to-noise ratio

bit energy to noise spectral density ratio

signal-to-interference ratio

immunity to interference

electromagnetic environment

electromagnetic compatibility

hardware, <in telecommunication>

software (in telecommunications)

functional unit

electric circuit

electric network

active

passive

one-port

two-terminal

two-port, adj

two-terminal-pair

n-port

transducer

delay line

attenuator

phase shifter

filter

distribution frame

amplifier

low-noise amplifier

buffer amplifier

oscillator

relaxation oscillator

multivibrator

trigger circuit

bistable trigger circuit

monostable trigger circuit

signal generator

master oscillator

clock

frequency synthesizer

frequency multiplier

frequency divider

integrator

differentiator

frequency mixer

frequency changer

modulator

detector

demodulator

frequency discriminator

phase detector

encoder

decoder

code converter

serial-to-parallel converter

parallel-to-serial converter

(logic) gate

combinatorial circuit

sequential circuit

logic circuit

amplitude discriminator

quantizer

limiter

clipper

slicer

base limiter

clamp

pulse regenerator

compressor

expander

compandor

equalizer

corrector

differential coupler

hybrid transformer

balancing network

frequency range (of an equipment)

dynamic operating range (of an equipment)