Bandwidth: The difference between the highest and lowest frequencies to which a receiver is sensitive.
Bandwidth
(a) The width of the portion of the electromagnetic spectrum (the range of frequencies) that is permitted to pass through an electronic device (measured in cycles per second).
Bandwidth depends on the overall effectiveness of the antenna, so all of these parameters must be understood to fully characterize the bandwidth capabilities of an antenna.
bandwidth (NASA SP-7, 1965) 1. In an antenna, the range of frequencies within which its performance, in respect to some characteristic, conforms to a specified standard.
2.
radio channel A frequency band comprised of the emission bandwidth, the interference guard bands, and the frequency tolerance. radio command A radio signal to which a rocket, satellite, or the like responds. radio control 1.
With modern technology we can search millions of radio channels (bandwidths) simultaneously, compared with only having one channel to search as Frank Drake had during Project Ozma, ...
These filter bands are centered at (with full-width half-power bandwidth) in micrometers: 6.62 (1.01), 7.88 (1.09), 8.56 (1.18), 9.30 (1.18), 10.11 (1.10), 11.03 (1.19), 11.78 (1.07), 12.58 (0.81), 14.96 (0.86).
The instrument bandwidth of 3-10 keV was defined by the detector window absorption (the window was 0.01 inch beryllium) and the upper level discriminator. The active gas volume (P-10 mixture) was 2.54 cm deep, providing good efficiency up to 10 keV.
instantaneous bandwidth
Integral Sign Galaxy (UGC 3697)
interacting binary
Interamnia (minor planet 704)
interferometer
intergalactic absorption
intergalactic magnetic field
intergalactic medium (IGM)
Intergalactic Wanderer (NGC 2419) ...
Radio telescopes are used to measure broad-bandwidth continuum radiation as well as spectroscopic features due to atomic and molecular lines found in the radio spectrum of astronomical objects.
Most use single sideband voice (SSB), which uses less bandwidth than AM. SSB sounds like ducks quacking on an AM radio.
A message size could be described in bits, while the capacity of the communications channel, informally known as its "bandwidth", could be described in terms of bits transferred per second.
At optical wavelengths the commonest set of broadband filters is the Johnson-Cousins (ultraviolet, blue, visual, red, infrared) system with bandwidths of ~1000 A.
Thus in the Chinese detectors a strong EM beam (essentially a focused microwave, so called 'Gaussian beam') at the expected frequency, phase and bandwidth of the relic GWs is passed through a strong static magnetic field.
Once an uplink is detected within its bandwidth, the receiver's phase-lock-loop circuitry (PLL) will follow any changes in the uplink's frequency within its bandwidth.
Faraday had demonstrated how the construction of a cable would limit the rate at which messages could be sent - in modern terms, the bandwidth. Thomson jumped at the problem and published his response that month.
A: I have neither the time nor the resources to answer the questions that come from those people who are not supporters of my site (good intentions are nice, but they don't pay my bandwidth bills).
watts per square meter of incident signal flux per whatever resolution bandwidth is in use. It is the total signal flux if the receiving bandwidth equals or is greater than the bandwidth of the signal.
Wm-2 Hz-1 (or W/m2 Hz) - (n.) ...
When the optical frequency is divided down into a countable radio frequency using a femtosecond comb, the bandwidth of the phase noise is also divided by that factor.
Sufficient video bandwidth was provided to allow for rapid framing sequences of both narrow- and wide-angle television pictures.
CTCSS takes advantage of the unused bandwidth below 300Hz by mixing one of the many tones listed below into the audio.
If the radio receiver chooses to, it can keep the radio squelch circuit silent unless a particular tone is found.
A bin has a bandpass filter response with certain frequency bandwidth. A spectral analysis requires the signal to be divided into a large number of bins. The signal power spectral density at each bin frequency is thereby measured.
Continuous Wave ...
A four-color, intermediate-bandwidth, photometric systemdevised by Strömgren consisting of measures in the ultraviolet, violet, blue, and yellow regions of the spectrum. [BFM02] ...
The Big Bear Solar Observatory in California is in the process of installing an AO system for better resolution at very narrow bandwidths.
Data rate. MTO not only would have been able to send data to Earth via high-speed X-band and Ka-band radio signals, but also via laser light beams. That was expected to bring a tenfold increase in bandwidth Š the rate of data transmission.
Unfortunately the primary sensory input device for us humans (our eyes) is very limited in "bandwidth" (the span of electromagnetic frequencies, or 'colours', to which it is sensitive) and while the images move us, ...
It is also suggested that, when using infrared or ultraviolet filters, the spectral range or the "bandwidth half-maximum" (BWHM) be provided. This information is usually readily available from the filters manufacturer.
 See also: Field, Second, Earth, Energy, Time
  
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