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2. Excess noise ratio - Wikipedia

   en.wikipedia.org/wiki/Excess_Noise_Ratio

   Thus, receivers with a narrow bandwidth have a higher sensitivity than receivers with a large bandwidth and input noise can be decreased by cooling the receiver input stage. A noise diode is a device which has a defined excess noise ratio (ENR). When the diode is off (unpowered) the noise from it will be thermal noise defined by the above formula.

3. Noise generator - Wikipedia

   en.wikipedia.org/wiki/Noise_generator

   If electrons flow across a barrier, then they have discrete arrival times. Those discrete arrivals exhibit shot noise. The output noise level of a shot noise generator is easily set by the DC bias current. Typically, the barrier in a diode is used. [4] Different noise generator circuits use different methods of setting the DC bias current.

4. List of noise topics - Wikipedia

   en.wikipedia.org/wiki/List_of_noise_topics

   1/f noise; A-weighting; Ambient noise level; Antenna noise temperature; Artificial noise; Audio noise reduction; Audio system measurements; Black noise; Blue noise; Burst noise; Carrier-to-receiver noise density; Channel noise level; Circuit noise level; Colors of noise; Comfort noise; Comfort noise generator; Cosmic noise; Crackling noise; DBa ...

5. General Motors 122 engine - Wikipedia

   en.wikipedia.org/wiki/General_Motors_122_engine

   For 1996, it became known as the Vortec 2200 in the S/T trucks. For 1998, the engine was revised for emissions regulations and became known as the 2200. This revision lowered power to 115 hp (86 kW) at 5000 rpm, and torque to 135 lb⋅ft (183 N⋅m) at 3600 rpm. The engine was discontinued in 2003, replaced by the 2.2-liter DOHC Ecotec engine ...

6. Sound level meter - Wikipedia

   en.wikipedia.org/wiki/Sound_level_meter

   A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations such as the Occupational Safety and Health (OSHA) 29 CFR 1910.95 Occupational Noise Exposure Standard ...

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