へん復調 ふくちょう装置 そうちでしょう
henfukuchōsōchideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 変復調装置

1. Likely a modulator/demodulator.; Possibly a transceiver.

Polite
Presumptive
Conjecture
Computing