passband
Filter's transmission window
A passband is the range of frequencies that a filter or electronic device allows to pass through while blocking frequencies outside that range.
In audio equipment, a passband determines which sounds get through; in radio, it defines the slice of spectrum a receiver accepts.
The filter's passband extends from 20 Hz to 20 kHz.
Point of termination
- selectivityTendency to choose carefully
- attenuationGradual intensity reduction
- resonanceAmplified oscillation at natural frequency
- rippleMinor surface disturbance
One that transports
- modulationVarying signals to transmit
- demodulationRecovering signal from carrier
- amplitudeMaximum oscillation displacement
- waveformGraphed oscillation pattern
baseband · broadband · analog · digital · encoding · decoding · bitrate · throughput
Transmission to spacecraft
- downlinkSpacecraft-to-Earth transmission
- transponderSignal-activated transmitter
- satelliteOrbiting celestial body
- fiber-opticLight-carrying cable technology
wireless · broadcasting · multiplexing · channel · propagation · receiver · transmitter · relay
Spatial repetition interval
- frequencyRate of recurrence
- hertzFrequency measurement unit
- kilohertzThousand-cycle frequency unit
- megahertzOne million oscillations per second
gigahertz · infrared · ultraviolet · visible · radio-frequency · microwave · absorption · emission
cutoff
Point of termination
- selectivityTendency to choose carefully
- attenuationGradual intensity reduction
- resonanceAmplified oscillation at natural frequency
ripple · sharpness · elliptic · notch · flatness · rejection
carrier
One that transports
- modulationVarying signals to transmit
- demodulationRecovering signal from carrier
- amplitudeMaximum oscillation displacement
waveform · baseband · broadband · analog · digital · encoding · decoding · bitrate · throughput · channel
uplink
Transmission to spacecraft
- downlinkSpacecraft-to-Earth transmission
- transponderSignal-activated transmitter
- satelliteOrbiting celestial body
fiber-optic · wireless · broadcasting · multiplexing · channel · propagation · receiver · transmitter · relay · streaming
wavelength
Spatial repetition interval
megahertz · gigahertz · infrared · ultraviolet · visible · radio-frequency · microwave · absorption · emission · spectroscopy
- signal analysisfrequency response, spectrogram, poles, zeros, gain
- stellar photometryphotometry, magnitude, magnitude scale, zero point, zero points
- signal processingsignal processing, FFT, convolution, sampling, aliasing
- frequency bandsfrequency range, HF, VHF, UHF, shortwave
- ModulationAM, FM, amplitude modulation, frequency modulation, modulator
- resonatorsresonator, resonance, cavity resonator, echo chamber, soundboard