The RFCU (Fig. 6) consists of two bandpass filters, a low-noise amplifier and a single down-converter stage. The RFC units are accommodated within the Payload Module close to their respective antennas in order to minimise ohmic losses. 该rfcu （图6 ）连续两个带通滤波器，低噪声放大器和一个单一的下变频器的阶段。的RFC单位被安置在有效载荷舱接近各自的天线，以尽量减少欧姆损失。
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