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What is effect on amplitude shift keying modulation and demodulation due to use of transistor SL100?
The SL100 is a PNP medium power transistor, suitable for use up to ~100MHz. This can be used in the power amplifier stage, with the output connected to a tuning network/transformer + antenna for AM modulation. It's purpose, if used in this application, is to supply current (usually a voltage amplifier circuit will precede this one) to drive the antenna.
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What is one disadvantage of an amplitude modulation communication system?
One disadvantage of the standard amplitude modulation system is that 67% of the power is used for the carrier, but the carrier transmits no information, so it can be considered as wasted power.The 34% remaining power is split between two mirror opposite sidebands so, in effect, you really only have 17% of your power used to carry the signal.
What is a variable transistor?
A variable transistor is a type of transistor whose characteristics can be adjusted, typically to control the flow of current or voltage in a circuit. This adjustment can be achieved through various means, such as changing gate voltage in field-effect transistors (FETs) or altering the biasing conditions in bipolar junction transistors (BJTs). Variable transistors are often used in applications like amplifiers, oscillators, and signal modulation, allowing for dynamic control over electronic signals.
What is offset voltage of Field Effect Transistor?
0.7V
What effect does the amplifier have on the frequency of the signal?
No effect on frequency but increases it's amplitude.
What is the effect on analog signal by increasing its gain?
There is no effect on frequency but the amplitude is increased
Why amplitude modulation is used for video transmission?
IF we use frequency modulation for transmitting video signal this can cause phase shifting .and eyes can percieve this distortion effect easly . and requires more bandwidth to send the signal .Color levels are adjusted by amplitude in TV .So it s more logic to use Amplitude modulation .
What is one disadvantage of an amplitude modulation communication system?
One disadvantage of the standard amplitude modulation system is that 67% of the power is used for the carrier, but the carrier transmits no information, so it can be considered as wasted power.The 34% remaining power is split between two mirror opposite sidebands so, in effect, you really only have 17% of your power used to carry the signal.
What is effect of frequency drift and phase drift of local oscillator in synchronous detection of dsb sc demodulation?
Frequency drift of the local oscillator can cause distortion and loss of signal in the demodulated output, while phase drift can lead to phase error which affects the accuracy of demodulation in synchronous detection of DSB-SC modulation. Both drifts can introduce errors and reduce the quality of demodulated signal.
Why FM is more resistant to noise than AM?
Frequency Modulation (FM) is more resistant to noise than Amplitude Modulation (AM) because FM encodes information in the frequency variations of the carrier wave, rather than in its amplitude. Noise typically affects amplitude, leading to distortion in AM signals. Since FM signals are less dependent on amplitude, they can maintain their integrity even in the presence of noise, allowing for clearer reception. Additionally, FM receivers can utilize techniques like capture effect and limiting, further enhancing their ability to suppress noise and interference.
What is another word for Musical vibration?
Tremolo is the generic term in musical notation. A trill can be a short tremolo Sometimes this effect is called vibrato, e.g in singing. On electric organs it is sometimes called "Lesley effect" On a guitar tremolo can be made with a "whammy bar". Arpeggio is similar to tremolo on certain instruments. The vibration can either be a frequency modulation or an amplitude modulation (or a combination).
Why is MOSFET called IGFET?
MOSFET is Metal Oxide Semiconductor Field Effect Transistor. IGFET Insulated Gate Field Effect Transistor. But these expressions are practically synonyms.
What is mean BFW11?
Its a Transistor used in JFET (Junction Field Effect Transistor)
Where was the transistor created?
The transistor was created by researchers at the university of Geneva. "The first patent for a field-effect transistor principle was filed in Canada... 1925. In 1934 German physicist Dr. Oskar Heil patented another field-effect transistor."
What affect if any does frequency have on the amplitude of the waves?
Frequency has no effect on teh amplitude of a wave.
What is a variable transistor?
A variable transistor is a type of transistor whose characteristics can be adjusted, typically to control the flow of current or voltage in a circuit. This adjustment can be achieved through various means, such as changing gate voltage in field-effect transistors (FETs) or altering the biasing conditions in bipolar junction transistors (BJTs). Variable transistors are often used in applications like amplifiers, oscillators, and signal modulation, allowing for dynamic control over electronic signals.
What does SK stands for SK 100 transistor?
In the transistor, first letter denotes the material and the second letter denotes about the type of device. Hence here in sk100 transistor, first letter s denotes that it is a silicon transistor and second letter k denotes that it is a hall effect device.So, sk100 is a hall effect silicon transistor....
What is offset voltage of Field Effect Transistor?
0.7V
