[time-nuts] measuring noise of power supplies (was: For those that insist on using switching power supplies)

Perry Sandeen sandeenpa at yahoo.com
Sun Oct 16 00:06:04 EDT 2016

Two Points
1. Switching regulator power supplies are here to stay and will replace most transformer types as the are cheaper, smaller, and more energy efficient. They have improved to the point of being used in medical equipment for patient monitoring equipment that picks up milli-volt signals from the patient electrodes.
2. It is very simple to use a cheap all band AM-FM shortwave receiver with an isolation cap to the antenna. Cheap, quick, and efficient.  BTDTGTTS.  What one is interested in usually is that there is interference, not its exact level or wave form.

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