へん復調 ふくちょう装置 そうちじゃなかったです
henfukuchōsōchijanakattadesu

Noun
Desu Copula

The polite, past negative form of 変復調装置

1. Wasn't a modulator/demodulator.; Wasn't a modem.

Past/Perfective
Negative
Polite
Casual Register
Computing