![For telegraphy the most commonly used modulation system is](https://www.gkseries.com/blog/wp-content/uploads/2022/02/For-telegraphy-the-most-commonly-used-modulation-system-is.png)
Q. For telegraphy the most commonly used modulation system is
A. fsk
B. two tone modulation
C. pcm
D. single tone modulation
Answer: fsk
A. fsk
B. two tone modulation
C. pcm
D. single tone modulation
Answer: fsk
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