The online monitoring parameter, equipment and data transmitmode were chosen.
确定了在线监测指标，选定了在线监测仪器和在线数据传输方式。
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This is fortunate, since most RF paths are duplex (bidirectional) channels with a need for signals to go from antenna to front end (receive mode) and from power amplifier to antenna (transmitmode).
The most likely culprits are things that transmit a signal like a cell phone or a computer operating in Wi-Fi mode which emits an electronic pulse or wave.