About a month ago, I began to notice noise in the shortwave band every day at irregular intervals. This time, I received the signal in AM mode and recorded the waveform using the IC-7610's audio scope.
Noise peaks can be observed almost every 100ms.
This noise is characterized by alternating occurrences and stops at intervals of several to 10 seconds, lasting several minutes in the shortest case and several tens of minutes in the longest case.
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