The frequency of the carrier in the case of carrier-current-pilot sch

1.	The frequency of the carrier in the case of carrier-current-pilot scheme is in the range of _________
A.	50 kHz-500 kHz
B.	1 kHz-10 kHz
C.	25 kHz-50 kHz
D.	15 kHz-25kHz
Answer» B. 1 kHz-10 kHz

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The frequency of the carrier in the case of carrier-current-pilot scheme is in the range of _________

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