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G8B13
Which of the following is an odd-order intermodulation product of frequencies F1 and F2?
Pick an answer to check it.
Answer: C. 2F1-F2
The order of an intermodulation product is the sum of the multipliers. For 2F1-F2 that is 2 + 1 = 3, which is odd. 5F1-3F2 gives 8 and 3F1-F2 gives 4, both even.
Tip: Add the coefficients; odd total = odd order.