What is a significant disadvantage of using a self-excited oscillator type of transmitter for shipboard service?

What is a significant disadvantage of using a self-excited oscillator type of transmitter for shipboard service?

• A. Frequency instability
• B. Parasitic oscillations
• C. Violent sound intensities
• D. Large capacity

Answer: (A)

A self-excited oscillator type of transmitter is primarily characterized by its reliance on feedback within the system to generate oscillations. One significant disadvantage of this type of transmitter for shipboard service is frequency instability. In a self-excited oscillator, the frequency of the output signal can vary due to changes in external conditions, such as temperature fluctuations or variations in component values. Stability in frequency is crucial in radiotelegraphy for clear communication and adherence to regulatory standards. If the frequency drifts, it can lead to interference with other communications or difficulty in receiving signals. Maintaining precise frequency control is essential for effective operation, especially in a maritime environment where clear and stable communication is necessary for safety and operational efficiency. Hence, the risk of frequency instability is a critical downside for this type of transmitter when used in shipboard applications.

A self-excited oscillator type of transmitter is primarily characterized by its reliance on feedback within the system to generate oscillations. One significant disadvantage of this type of transmitter for shipboard service is frequency instability.

In a self-excited oscillator, the frequency of the output signal can vary due to changes in external conditions, such as temperature fluctuations or variations in component values. Stability in frequency is crucial in radiotelegraphy for clear communication and adherence to regulatory standards. If the frequency drifts, it can lead to interference with other communications or difficulty in receiving signals.

Maintaining precise frequency control is essential for effective operation, especially in a maritime environment where clear and stable communication is necessary for safety and operational efficiency. Hence, the risk of frequency instability is a critical downside for this type of transmitter when used in shipboard applications.