Amplitude modulation using using BC107 transistor

In summary, Amplitude modulation using BC107 transistor is a modulation technique used in radio communication that involves varying the amplitude of a carrier signal to transmit information. The BC107 transistor is used as an amplifier in this process. It works by amplifying the audio signal and modulating the amplitude of the carrier signal with it. The advantages of using BC107 transistor in amplitude modulation include its low noise, high gain, and high-frequency capabilities, as well as its linearity and cost-effectiveness. However, its limitations include its single transistor design and limited frequency range. Amplitude modulation using BC107 transistor differs from other modulation techniques in the way it varies the carrier signal, with each technique having its own advantages and applications depending on the communication system's needs
  • #1
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Homework Statement



In my electronics practical class, i assemble a ckt of amplitude modulation using BC107 transistor ,but the modulated wave always has the same phase up and above , there is no phase difference b/w the upper and lower part of the wave .

My teacher also couldn't understand the problem . I made the ckt 3-4 time but same result .

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  • #2
If you don't post a circuit schematic, there's not much people here can do to help.
 
  • #3


Sounds to me like non-linearity. Do you have the bias point set for class-A operation?
 

1. What is amplitude modulation using BC107 transistor?

Amplitude modulation using BC107 transistor is a type of modulation technique used in radio communication. It involves varying the amplitude of a carrier signal to transmit information, such as audio signals, over a medium. The BC107 transistor is used as an amplifier in this process.

2. How does amplitude modulation using BC107 transistor work?

In this technique, the BC107 transistor is used to amplify the audio signal and then modulate the amplitude of the carrier signal with this amplified signal. The modulated signal is then transmitted through the medium, and at the receiving end, the original audio signal can be retrieved by demodulating the signal using a similar process.

3. What are the advantages of using BC107 transistor in amplitude modulation?

The BC107 transistor is a low noise, high gain, and high-frequency transistor, making it ideal for use in amplitude modulation. It also has a high linearity, meaning it can accurately amplify the audio signal without introducing distortion. Additionally, BC107 transistors are relatively inexpensive and readily available, making them a cost-effective option for modulation.

4. Are there any limitations to using BC107 transistor in amplitude modulation?

One limitation of using BC107 transistor in amplitude modulation is that it is a single transistor, meaning it can only amplify the signal to a limited extent. This can limit the overall range and strength of the modulated signal. Additionally, BC107 transistors have a limited frequency range, which may not be suitable for all types of modulation.

5. How is amplitude modulation using BC107 transistor different from other modulation techniques?

Amplitude modulation using BC107 transistor differs from other modulation techniques, such as frequency modulation and phase modulation, in the way it varies the carrier signal. In amplitude modulation, the amplitude of the carrier signal is varied, while in frequency modulation, the frequency is varied, and in phase modulation, the phase of the carrier signal is varied. Each of these techniques has its advantages and applications, and the choice of modulation technique depends on the specific needs and requirements of the communication system.

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