Selective channel monitoring is due to a phenomenon that only appeared with the market introduction of electronically controlled power supplies. This story describes what this is all about and how Murrelektronik solved it. What on earth is a "channel monitor"? Images of gigantic ocean-going vessels quickly form on their way through the Kiel Canal, saving themselves the 250-mile detour through the North Sea, Skagerrak and Kattegat. And because the pilot prefers to check his message status on his smartphone instead of doing his actual work, he only monitors the channel passage selectively!
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