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Why should 1 MHz crystal Oscillator oscillates at a frequency other than 1 MHz?
Jcpanchal
Heat variances will cause the frequency to oscillate up and down in a rather dramatic way sometimes. Other possible crystal problems are manufacturing/quality-control error, aging, or vibration. Also, the oscillator circuitry can cause the frequency to vary. Crystal manufacturers specify circuit capacitance and circuit resistance values that must be used for correct operation. Incorrect circuitry can also set up unwanted overtone resonances or spurious frequencies.
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∙ 15y ago
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What should be the oscillator frequency for tuning in 710 KHz on AM radio with a 455 KHz IF?
The local oscillator could be either 1165 KHz (710+455) or 255 KHz (710-455).
The FM receiver is tuned 98.3 mhz if 10.7 mhz local oscillator frequency is?
The question probably should be, "If the FM receiver is tuned to 98.3MHz and the IF (intermediate frequency) is 10.7MHz, then what frequency is the local oscillator running at?" The answer would be 87.6MHz but i could be 109MHz and would still work. The local oscillator is mixed with the received signal and what comes out contains both the sum and the difference of the two frequencies. The amplifiers that follow are highly tuned to the IF and so only that frequency is amplified and demodulated by the receiver.
What is mean by stability of the oscillator?
Stability of the oscillator means the how much frequency stability it have. Measure of frequency stability comes from "rate of change of phase w.r.t frequency", the more it is the more stable the oscillator is, because we know that one condition for oscillation is that the loop gain phase shift should be zero, hence if due to ckt. parameters there is some change in phase then by very little variations in frequency we can bring back the loop gain phase shift to zero. ex. is LC tank circuit which act as an osciilator at resonant frequency. Frequency stability can also be measure from quality factor, the higher it is the more stable ckt. is,Parikshit ParasherB-tech ECE, PG power engg.parikshit_parasher@yahoo.co.in
What is the procedure for testing the circuit of UJT relaxation oscillator?
Depends on what you need to know about it. First off, I'd use an oscilloscope. If it's set up correctly and you know how to `count graticules' that's really all you'll need to learn almost everything about your oscillator. IT should show you the wave forms at certain connection points, voltages as well as giving you some indication of the frequency. And if you want to know the current draw, you should probably have some type of milliamp meter on hand, which can usually be found in most miltimeters.
For satellite communication the frequency should be less than critical frequency?
For satllite communication the frequency should not be less than the critical frequency because in satellite communicaton high frequency is needed which is reflected by satellite but not by the ionosphere.
Under what circumstances should you use a grouped frequency distribution instead of a regular frequency distibution?
You should use a grouped frequency when you have a wide range of scores.
What do the intervals in a frequency chart have to be?
Usually the intervals in a frequency chart should be equal.
State sampling theorem?
sampling theorem is defined as , the sampling frequency should be greater than or equal to 2*maximum frequency, and the frequency should be bounded.. i,e fs=2*fmax where fs= sampling frequency
Does the rate of cooling increasing make a crystal increase?
the size of crystal should be decrease
Should crystal Ellis be famous?
It is your opinon.
Where are crystal located'?
Crystal's are Under Ground , Caves , and Mines. They are at the Museum should go there are all type's of them.
What should a well constructed histogram reveal to you?
It should reveal the frequency density of the variable for the well-defined classes. From this, it should be easy to work out the exact frequency in each class.
