English to Russian Tech/Engineering Electronics / Elect Eng анализатор спектра

Документация на портативный анализатор спектра FSH3 КОМПАНИИ Rohde & Schwarz

The RF receive path (shown in Figure 1) is designed as a threefold converting superheterodyne receiver with a high first intermediate frequency. With damage prevention being a key consideration in such instruments, the RF input is particularly well protected by a combination of overvoltage arrester, PIN diodes and capacitive coupling so that the attenuator or the input mixer will not be damaged if high voltage is inadvertently applied or if electrostatic discharge occurs.