About nature of "mirror" spurious oscillation in spectrum of magnetron devices with central by the cathode

The experimental findings of an investigation of the nature and ways of suppressing "mirror"-type spurious oscillation of potent magnetron devices, observed on the output of an M-type device, is adduced at their docking with instrumentation power sources. The problem has a general enough nature, and is practically foregone in mining instrumentation operating magnetron sources of a very high frequency and power, and is directly connected to a heightened noise level in magnetron devices.