直交 ちょっこう振幅 しんぷく変調 へんちょうではありません
chokkōshimpukuhenchōdewa arimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 直交振幅変調

1. Is not quadrature amplitude modulation.; It is not QAM.

Negative
Polite
Formal Register
Computing