narrowband


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Related to narrowband: Wide Band

nar·row·band

(na'rō-band),
A limited band of sound frequencies, as opposed to the wideband of frequencies also known as white noise; narrowband noise is used to mask hearing in the nontest ear in hearing measurement.

nar·row·band

(nar'rō-band')
A limited band of sound frequencies, as opposed to the wideband of frequencies also known as white noise; used to mask hearing in the nontest ear in hearing measurement.

narrowband

Consisting of a limited number of wavelengths or frequencies. Narrowband ultraviolet B radiation, for example, consists of radiation measuring approximately 311 nm; broadband ultraviolet light, by contrast, has a range of wavelengths between 295 and 320 nm.
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References in periodicals archive ?
The full Moon was up while recording most of the narrowband data used in this composite of M27.
The British Association of Dermatologists clinical guidelines for the management of vitiligo recommend narrowband ultraviolet light B (NB-UVB), (311 to 312 nm), tacrolimus, and topical steroids to treat the condition.14
The narrowband beamforming and narrowband sources scenario are the special cases of our results, which validates this work.
Several authors subsequently investigated the therapeutic effectiveness of narrowband UV-B by either comparing the treatment results for the new lamp with those from previous trials using broadband UV-B8 or by means of bilateral comparison studies9.
1, consists of an wideband disk monopole incorporating a narrowband slot antenna.
Randomized double-blind trial of treatment of vitiligo efficacy of psoralen UV-A therapy vs narrowband UV-B Therapy.
The EU executive contested, in fact, the UKE's intention to regulate, at the same time, retail broadband access services and the market for access to narrowband fixed telephony.
Fifteen chapters cover the evolution of the wireless industry; characterization of radio propagation; modeling and simulation of narrowband signal characteristics; measurement of wideband and UWB (ultrawideband) channel characteristics; modeling of wideband radio channel characteristics; narrowband modem technology; fading, diversity, and coding; broadband modem technologies; spread-spectrum and CDMA (code division multiple access) technology; topology, medium access, and performance; ultrawideband communications; RF location sensing; wireless optical networks; and systems and standards.
IDC Japan forecasts that, although FTTH will definitely expand, ADSL will continue to keep more than a 50% share until 2009 as subscribers to narrowband services are likely to upgrade to ADSL.
"KDDI is planning to build a ubiquitous network for broadband and narrowband and as such network reliability is critical," said Dr.

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