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Electronic devices often emit a high pitched low volume squeel. This is often the result of Transformers or capacitors as current passes through them.
Alternatively, this may be signal interferrence in signal waves.
What else can I help you with?
What is the difference between filter capacitor and bypass capacitors?
Different names for the same thing. Depending on who you're talking to, they may use one or the other. A capacitor can be used to remove high frequency noise (in IC's this is usually switching noise); it can be used to remove low frequency noise also (such as for sound equipment - 60 Hz hum).Bypass simply means power is being shunted around specific equipment (alternatively, filtering the input to certain equipment).
What is the difference white noise and impulse noise?
Thermal noise occurs in all transmission media and all communication equipment, including passive devices. It arises from random electron motion and is characterized by a uniform distribution of energy over the frequency spectrum with a Gaussian distribution of levels. Noise. Impulse noise is noncontinuous, consisting of irregular pulses or noise "spikes" of short duration, broad spectral density, and relatively high amplitude.
What is the Difference between noise margin and signal to noise ratio?
SNR = Signal Power / Noise Power, which is an indication of how well a receiver can distinquish a signal from random noise (non signal). The Noise margin is the measure in Db of how much better the SNR is than the SNR required for proper operation of a receiver. To a user this may be more valuable information, since the user may not know what an acceptable SNR is for his equipment.
What is an external noise?
examples of internal noise.thermal noise,short noise,i/f noise
What is noise immunity in digital electronics?
Noise immunity is the ability of a system to perform even when there is noise present. The higher the level of noise a system can still operate under, the higher the noise immunity.
Where can I purchase equipment for noise measurement?
This website is a great resource for noise measurement equipment: www.powersourcing.com/se/noisemeasuringequipment.htm. You need some training to understand what you are reading, though.
What is noise criteria?
Noise criteria, commonly known as NC, is a numerical index used to rate indoor noise, noise from air-conditioning equipment, and noise in any other given space.
The control of noise and the vibrations that cause noise?
Noise and vibrations can be controlled by implementing soundproofing materials (like acoustic panels or curtains), using vibration isolators to separate vibrating equipment from surrounding structures, and maintaining equipment to reduce noise emissions and vibrations. Additionally, implementing noise barriers and creating buffer zones between noise sources and sensitive areas can help to minimize the impact of noise and vibrations.
What is the noise reduction rating for shooting equipment?
The noise reduction rating (NRR) for shooting equipment typically ranges from 22 to 33 decibels, indicating the level of sound reduction provided by the gear.
What is the noise ordinance for Chester county?
The noise ordinance for Chester county is in effect from 10:30 p.m. to 7 a.m.. A person can not make noise or use sound equipment in public.
What is the Noise Reduction Rating (NRR) for the hearing protection equipment you recommend for use in a loud industrial environment?
The Noise Reduction Rating (NRR) for the hearing protection equipment recommended for use in a loud industrial environment is 30 decibels.
What equipment must be installed in a powerboat to prevent excessive or unusual noise?
A muffler system must be installed in a powerboat to prevent excessive or unusual noise.
In Ohio a powerboat may not exceed established noise levels What equipment must be installed in a powerboat to prevent excessive or unusual noise?
muffler system
Is there any outdoor noise cancelling equipment?
There seems to be none available in the market which can be used as a general utility device for an outdoor environment. In any case noise cancellation can work for a specified area only and that too with a single focal point. However, such a noise cancellation equipment shall be adding more noise to the environment away from the perimeter of the device zone due to interference of the sounds. One of the interesting sites is www.comfozone.com. One mans noise cancellation device could turn into anothers noise generator!
What are the components of an earth station antenna system?
Antenna Low-noise amplifiers (LNAs) or low-noise down-converters High-power amplifiers (HPAs) Signal processing equipment (e.g. down-converters, up-converters, IF amplifiers, modems and codecs) Transmission and signalling equipment at the interface between the terminal and the terrestrial network Supervisory and control equipment Enclosures to protect the equipment from the environment
What the difference between sound nd noise?
No difference, noise is a sound too. Sound includes everything that produces sound waves. Noise is considered a mixture of many different sound frequencies at high decibel levels. (Noise is also a term used in electronics and electronic equipment)
What is the difference between Signal-to-Noise Ratio (SNR) and Noise Reduction Rating (NRR) in the context of audio equipment?
Signal-to-Noise Ratio (SNR) measures the quality of the signal compared to the level of background noise, indicating how clear the audio is. Noise Reduction Rating (NRR) quantifies how much external noise is reduced by a device, such as headphones or earplugs, to improve the listening experience.
