English to Russian Tech/Engineering Aerospace / Aviation / Space specification

Добрый день!
Помогите, пожалуйста, перевести output/input ratio в следующем контексте:

Electronic instrumentation shall be accomplished in accordance with SAE J211 using the sign convention specified in SAE J1733. In this practice, a data channel is considered to include all of the instrumentation components from the transducer through the final data measurement, including connecting cables and any analytical procedures that could alter the magnitude or frequency content of the data. Each dynamic data channel is assigned a nominal channel class that is equivalent to the high frequency limit for that channel, based on a constant output/input ratio versus frequency response plot which begins at 0.1 Hz (+1/2 to -1/2 dB) and extends to the high frequency limit (+1/2 to -1 dB).

Заранее спасибо!