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electronics and communication engineering radio receivers
1. Which are the popular IF frequencies for microwave and radar receivers operating on frequencies in the range 1 to 10 GHz
(A): 3, 6 and 7 GHz
(B): 3, 6 and 7 kHz
(C): 30, 60 and 70 kHz
(D): 30, 60 and 70 MHz
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