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The Ratio Detector recovers intelligence from the FM envelope by comparing the amplitudes of two signals derived from the FM waveform. It utilizes a phase-locked loop to demodulate the frequency variations, effectively translating frequency changes into amplitude changes. By taking the ratio of these amplitudes, the detector can extract the original modulation signal, allowing for effective demodulation of the frequency-modulated signal. This method is particularly effective in reducing the effects of noise and improving the clarity of the recovered audio.
What else can I help you with?
What is the purpose of a discriminator in an FM broadcast receiver?
The discriminator, and the ratio detector, perform the same function in an f.m. receiver as the detector does in an a.m. receiver, i.e. it recovers the modulation.
What is Mega Dynamic Contrast Ratio?
mega contrast ratio is a brand name of technology used by a electronics company to describe the contrast ratio of the screen
In TV what is the better contrast ratio- 1000 to 1 or 1500 to 1?
1500:1 is the better contrast ratio
Whats the stock spider gear ratio in a 1988 Jeep Cherokee?
its either 355 or 373 there are tags on diff that give you numbers
What is the standard frequency between two adjacent musical notes?
The musical interval between two notes depends on the ratio of their frequencies. An octave is a ratio of 2:1 and, in equal temperament comprises 12 equal semitones, which therefore have a ratio of 21/12.
What is split ratio in gas chromato graphy?
The split ratio in gas chromatography refers to the ratio of the carrier gas that is split between the column and the detector. This ratio determines how much of the sample is directed into the column for separation and how much is directed to the detector for analysis. Adjusting the split ratio can affect the sensitivity, resolution, and detection limits of the analysis.
What is the purpose of a discriminator in an FM broadcast receiver?
The discriminator, and the ratio detector, perform the same function in an f.m. receiver as the detector does in an a.m. receiver, i.e. it recovers the modulation.
Why do you have greater intelligence than other animals?
Human intelligence is attributed to having a large brain and also having a large ratio of brain size to body size.
Does IQ mean the size of your brain?
No,IQ doesn't mean the size of your brain.The term IQstands for "Intelligence Quotient," and refers to a person's cognitive ability.It is a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to his chronological age .
What does it mean if your IQ is 122 and you are fourteen?
The IQ score is a ratio of the average intelligence age to the chronological age. An IQ of 122 means that a 14 year old has the same intelligence as that of an average 17 year old.
Is IQ nominal or interval or ordinal or ratio?
IQ is considered an interval scale. This means that it measures intelligence in terms of numerical values where the differences between scores are meaningful and consistent. However, it does not have a true zero point, as an IQ score of zero does not indicate the absence of intelligence. Thus, while IQ scores can be compared and analyzed mathematically, they do not represent a ratio scale.
What must be done in the mass spectrometer to bring ion to the detector?
In a mass spectrometer, ions are accelerated through an electric field, focused into a beam, and then passed through a magnetic field that separates the ions based on their mass-to-charge ratio. The ions of interest are detected when they hit the detector, where they generate a signal that is used to create a mass spectrum.
What is Work-to-recovery ratio in interval training?
How long you spend working out in the high-intensity movement and recover with low-intensity movements. Sprint 1 minute then active recovery the next minute.
What function of electrometer in mass spectrometer?
In a mass spectrometer, the electrometer serves as a highly sensitive detector that measures the electric current produced when ions strike the detector surface. It converts the ion current into a measurable voltage, allowing for the quantification of ion abundance and thereby contributing to the identification and analysis of different isotopes or molecules. This precise measurement is crucial for determining the mass-to-charge ratio of ions, which is fundamental to the mass spectrometry process.
What is absolute efficiency in radiation?
Absolute efficiency in radiation measures the probability that a photon will interact with a detector and generate a signal. It is calculated as the ratio of the number of photons detected to the total number of photons emitted. It is an important characteristic used to evaluate the performance of radiation detectors.
What is the purpose of limiter stage in a FM broadcast receiver?
It is to reduce interference form impulsive noise and even a.m. transmissions. If the receiver uses a ratio detector instead of the normal frequency discriminator it will be self limiting, thus eliminating the need for a separate stage.
How envelope is eliminated and sine wave is produced in demodulation?
One way to demodulate an amplitude modulated signal from its carrier is to build a peak-follower. This could be a simple RC filter with a diode at the input. The voltage across the capacitor would charge to the peak value of the carrier (envelope), and then discharge through the resistor. The time constant would be selected so that the capacitor would have no "trouble" following the envelope. Since the typical ratio of signal to carrier frequency is quite high, i.e. 20kHz signal vs 1MHz carrier, the time constant can be quite short.
