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An important aspect of analogue FM satellite systems is FM threshold effect. In FM systems where the signal level is well above noise received carrier-to-noise ratio and demodulated signal-to-noise ratio are related by:
The expression however does not apply when the carrier-to-noise ratio decreases below a certain point. Below this critical point the signal-to-noise ratio decreases significantly. This is known as the FM threshold effect (FM threshold is usually defined as the carrier-to-noise ratio at which the demodulated signal-to-noise ratio fall 1 dB below the linear relationship given in Eqn 9. It generally is considered to occur at about 10 dB).
What else can I help you with?
Why do FDM FM microwave systems use low-index FM?
because high-index fm is too mainstream
What is an Antenna FM Trap?
The FM Trap is used to reduce offending FM signals that can cause audio and video interference. Designed to attenuate the entire FM band and Average -26dB. It's a piece of hardware between the antenna and the preamplifier.
2 advantage of FM over SSB?
no
What is AM and FM?
what is AM and FM AM normally refers to Amplitude Modulation while FM refers to Frequency Modulation. As the names suggest, in AM, the carrier wave is modulated by the amplitude of the input signal/waveform while in FM, it is based on the frequency. For further information on how exactly it's done, just run a search for Amplitude Modulation / Frequency Modulation and you should be able to find more detailed information about them.
How can I use a regex pattern to match values that are less than a certain threshold?
To match values less than a certain threshold using a regex pattern, you can use a pattern like this: "(0(?:0-91-90-9100))". This pattern will match values from 0 to 100, allowing you to set a threshold for the values you want to match.
What is threshold wavelength?
Threshold wavelength refers to the minimum wavelength of light required to start a specific phenomenon, such as photoelectric effect or emission of electrons from a metal surface. Below this threshold wavelength, the desired effect does not occur.
The ability of an FM receiver to lock onto the strongest signal is called?
capture effect
What has the author R FRANKHAM written?
R. FRANKHAM has written: 'INBREEDING AND EXTINCTION : A THRESHOLD EFFECT'
How does photoelectric effect take place below threshold frequency?
It doesn't, and that's the whole big mysterious fact about the photoelectric effect that was standing Physics on its ear about 100 years ago. It doesn't matter how bright the light is, there's no photoelectric effect if the light is below the threshold frequency. And if it's above the threshold frequency, it doesn't matter how dim the light is, those electrons come streaming off of the surface of the target.
If the frequency of light is greater than the threshold frequency will photoelectric effect starts?
Yes - that's how it works.
When was From Threshold to Threshold created?
From Threshold to Threshold was created in 1955.
What is the threshold frequency of cesium?
The threshold frequency of cesium is approximately 3.3 x 10^14 Hz. This is the minimum frequency of electromagnetic radiation required to eject electrons from the surface of cesium via the photoelectric effect.
When discussing the dose response relationship the threshold dose is also referred to as?
No-observed adverse effect level or NOAEL
What is the threshold effect on a developing embryo or fetus?
it's when you're pregnant and walking through the door and you drop it on the floor
Can photoelectric effect be observed for all metals under same condition of incident light?
no , it cannot be observed in same conditions of incident light because, the threshold energy will be different for different metals.so in that particular threshold energy only the photoelectric effect for that metal can be observed.....
Neuron receives a series of stimuli whose effect is excitatory but subthreshold?
Then it does nothing unless the stimuli arrive at the same time to be above the threshold. Or the stimuli may undergo temporal summation (with buildup of neurotransmitters in the synapse), where their effects add up over time to be above the threshold.
What are good and bad effects of FM radio?
Some good effects of FM radio is that people have access to free news, music, and can be alerted to emergencies. One possible bad effect of FM radio is that some scientist think radio waves may be bad for humans.
