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Atmospheric noise is most significant at lower frequencies, particularly in the range of 0.1 to 30 MHz. This type of noise is primarily caused by natural phenomena such as lightning strikes and other electrical discharges in the atmosphere. It tends to impact radio communications, especially in the shortwave bands, making it a critical factor for radio operators and researchers working in these frequency ranges.
What else can I help you with?
What are the types of noise which can occur in an electronic circuit?
THERE ARE MANY TYPES OF NOISE SUCH AS SOFT ,HARD,POLITE etc SOFT NOISE MEANS VERY LITTLE SOUND THAT COMES TO OUR EAR VERY SMOOTHLY. HARD NOISE MEANS VERY BOOMING VOICE THAT COMES TO OUR EAR VERY HARDLY (VERY LOUD). POLITE NOISE MEANS VERY CLEARLY AND LITTLE NOISE MEANS SOFT
How does noise jammer work?
The principle of operation of a noise jammers works on the basis of learn and replicate. the jammer is in most cases associated with a frequency scanner system which identifies the operating frequencies in audio or Rf ranges. based on the detected type of transmission, the jammer emits signals which are similar in characteristics to the noted signal, thus the receiver of radio or Radar whichever is to be noise jammed is now looking at two signals , one from the original source and the other from the jammer. this in turm complicated the listening process and JAMMS its ability to discern the true signal from the false one. Another way of jamming is to forget about first listening and then jamming, all that needs to be done is to identify the frequency band which is to be jammed and direct significant amount of power/ noise form the jammer in that band. this will debilitate the reception of all channels operating in the jammed frequency range and prevent the receiver from receiving the intended signal.
Do most objects have a natural frequency of vibration?
Absolutely not! Glass, for example (every wine glass has a different natural frequency), can be broken by a frequency that matches its own but nearby objects aren't affected by the same frequency.
Why intermediate frequency are constant?
The frequency spectrum has been distributed for various purposes. Otherwise, the people may use the frequencies of their choice & there will be wide range of interference. So, in order to ensure proper reception of signals, the standards have been fixed for the transmission of frequencies & also for the intermediate frequency because if the intermediate frequency is varied the overall frequency value will also vary. The intermediate frequency value should be so designed that it should not lie within the range of mixer stage. Otherwise, there is the production of noise signal due to the interference of mixer frequency & intermediate frequency. Also, the intermediate frequency should not be too high. Otherwise, it will reduce the selectivity of the receiver because of increase in bandwidth. Considering all these factors 455 khz is the most suitable intermediate frequency value for an AM receiver.
In a communication system noise is most likely to affet the signal at?
channel
What is the frequency range of active noise suppression of the Bose QuietComfort 2 Noise Cancelling Headphones?
Noise cancellation is more effective at lower frequencies, but reduces most external sound.
What of the three analog-to-analog conversion techniques AM FM or PM is the most susceptible to noise?
AM (amplitude modulation) is the most susceptible to noise among the three analog-to-analog conversion techniques. This is because noise primarily affects the amplitude of the signal, leading to interference and distortions in the received signal. In contrast, FM (frequency modulation) and PM (phase modulation) are less susceptible to noise as they encode information in frequency and phase variations, respectively, which can be more effectively separated from noise during reception.
What is the most effective cat noise deterrent to prevent unwanted behavior?
Ultrasonic devices are the most effective cat noise deterrent to prevent unwanted behavior. These devices emit high-frequency sounds that are unpleasant to cats, deterring them from engaging in unwanted behavior.
What does a atmospheric scientist study the most?
what the atmospheric scientist study the most is the atmosphere
How do cellphone charms detect that a phone near them is being called?
they work on a frequency, stick a phone near a speaker and ring it you will here a feedback noise on the speaker just before it rings or text it for similar effect. the noise you hear is the frequency and can sometimes flash even with out being called if it picks up other frequency, these dont work for 3g frequencys on most of these devices or 2100 gsm
Which frequency range of human hearing is most affected by hazardous noise?
3,000-6,000 Hz +++ Noise at hazardous levels are so over the entire human audiological spectrum, but long-term exposure reduces the response from the highest frequency (18-20 kHz) downwards.
What are the types of noise which can occur in an electronic circuit?
THERE ARE MANY TYPES OF NOISE SUCH AS SOFT ,HARD,POLITE etc SOFT NOISE MEANS VERY LITTLE SOUND THAT COMES TO OUR EAR VERY SMOOTHLY. HARD NOISE MEANS VERY BOOMING VOICE THAT COMES TO OUR EAR VERY HARDLY (VERY LOUD). POLITE NOISE MEANS VERY CLEARLY AND LITTLE NOISE MEANS SOFT
Your car makes a thumping noise and it feels like you are going over bumps on smooth roads The frequency increases with speed What could be wrong?
Most likely a bad tire.
Why is that amplitude modulation is mostly affected by man made interference than frequency modulation?
since man made devices always produce noise for other electronic devices and noise always add at the amplitudes of any wave.in the am,amplitude is varying w.r.t. the information or modulating signal so it is most prone to noise and hence affected most by man made devices
Between 800 and 1500 as the frequency and intensity of contact with the outside world increased what was the most significant impact on sub- Saharan Africa?
C) The Arrival of Islam
What frequency is most common in music?
The most common frequency in music is the mid-range frequency, which is around 440 Hz.
How does noise jammer work?
The principle of operation of a noise jammers works on the basis of learn and replicate. the jammer is in most cases associated with a frequency scanner system which identifies the operating frequencies in audio or Rf ranges. based on the detected type of transmission, the jammer emits signals which are similar in characteristics to the noted signal, thus the receiver of radio or Radar whichever is to be noise jammed is now looking at two signals , one from the original source and the other from the jammer. this in turm complicated the listening process and JAMMS its ability to discern the true signal from the false one. Another way of jamming is to forget about first listening and then jamming, all that needs to be done is to identify the frequency band which is to be jammed and direct significant amount of power/ noise form the jammer in that band. this will debilitate the reception of all channels operating in the jammed frequency range and prevent the receiver from receiving the intended signal.
