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Unwanted ambient electrical signals or electromagnetic energy found in the operating environment of RFID equipment.
Noise can be caused by other RF devices, robots, electric motors and other machines.
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ambient noise (s) (noun)
, ambient noises (pl)
The loud reverberations that come from sources in a given environment: The ambient
noises, or background sounds, of cars on the freeway was heard from the condo balcony in the high-rise building complex and sometimes they could be irritating for the residents residing there.
Sometimes parades can produce ambient noises that are very disturbing for some people.
ambient noise level (s) (noun)
, ambient noise levels (pl)
The uncontrollable background rackets of sounds in certain areas: For some people, there are ambient noise levels near expressways that can't always be endured or tolerated.
atmospheric noise (s) (noun)
, atmospheric noises (pl)
Loud sounds heard during radio reception interferences in the air: Sally found out that atmospheric noise was caused by natural processes in the atmosphere, mainly by lightning discharges during thunderstorms!
cosmic noise (s) (noun)
, cosmic noises (pl)
1. Radio static caused by a phenomenon outside the earth's atmosphere; such as, sunspots.
2. Random noise or interference that is produced by cosmic background radiation; that is, by radiation from outside the earth's atmosphere which is coupled into a communication system.
This entry is located in the following unit:
cosmo-, cosm-, cosmico-, cosm, -cosmia, -cosmos, -cosmic, -cosmics, -cosmical, -cosmology, -cosms
Unwanted electric energy in a receiver or transmission system other than crosstalk or unwanted sounds or other signals picked up by one channel of an electronic communications system from another channel; for example, between telephones or loudspeakers.
Sources include electric appliances, electric motors, engine ignition, and power lines.
1. Any of the unwanted electrical signals in a circuit.
2. The noise generated by electrical devices; for example, motors, engine ignition, power lines, etc.
electromagnetic noise, radiation noise
1. Noise in a communications system resulting from undesired electromagnetic radiation.
2. Any undesired electromagnetic disturbance.
electronic noise jammer
1. A device hat transmits a signal with a white noise component (noise of equal intensity over a wide range of frequencies) in order to prevent the functioning of a radar system.
2. An electronic jammer (causing interference) that emits a radio-frequency carrier modulated with a white noise signal (noise of mixed frequency) usually derived from a gas tube; used against military enemy radar.
geomagnetic noise, geomagnetic interference
1. Any interference in radio communications caused by terrestrial magnetism or the earth's magnetic field.
2. Unwanted radio frequencies caused by fluctuations in the geomagnetic field of the earth.