Do any forum members have knowledge of a mechanism by which ac induction motors (two are fan motors, one a compressor motor) can generate broadband RE from 30 - 600 MHz? This is outside my experience. Are there perhaps degradation modes that result in arcing? The motors run off three phase 400 cycle power, 115 Volts rms phase to neutral. The control system is bang-bang, just mechanical relays making connections/disconnections based on temperature and pressure inputs. The rep rate of the BB noise is variable but around 10 milliseconds.
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