Dictionary of telecommunications. Д.С.Иносов. 2000.
Sensitivity (radio receiver) — A receiver s sensitivity is a measure of its ability to discern low level signals.Sensitivity in a receiver is normally taken as the minimum input signal (Smin) required to produce a specified output signal having a specified signal to noise… … Wikipedia
Multiple chemical sensitivity — Classification and external resources MeSH D018777 Multiple chemical sensitivity (MCS) is a chronic medical condition characterized by symptoms the affected person attributes to exposure to low levels of chemicals. Commonly suspected substances… … Wikipedia
70-centimeter band — 70 centimeters is a common amateur radio (ham) band in the UHF spectrum. The exact amateur frequency allocations varies regionally. In the US and Australia the band ranges from 420 to 450 MHz with some geographical limitations; in Canada, the… … Wikipedia
RF front end — is a generic term for everything in a receiver that sits between the antenna and the intermediate frequency (IF) stage.For most super heterodyne architectures, this part of the receive chain consists of:* A matching circuit to allow all the… … Wikipedia
PMR446 — (Personal Mobile Radio, 446 MHz) is a radio frequency part of the UHF range that is open without licensing for personal usage in most countries of the European Union. It has roughly the same use as FRS or GMRS in the United States and Canada.… … Wikipedia
carrier detect threshold — A way of measuring how well a modem can detect valid data over noisy phone lines. It is measured in negative dBm s (decibel milliwatts). The bigger the number (the more negative) the better. For example, 45 dBm is better than 40 dBm. Same as… … Dictionary of telecommunications
nervous system, human — ▪ anatomy Introduction system that conducts stimuli from sensory receptors to the brain and spinal cord and that conducts impulses back to other parts of the body. As with other higher vertebrates, the human nervous system has two main… … Universalium
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
Social rejection — Silent treatment redirects here. For other uses, see Silent treatment (disambiguation). Psychology … Wikipedia
sound reception — Introduction response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly … Universalium
