We’ve been discussing signals from the perspective of their bandwidth relative to the bandwidth of the receptor and have not considered them from the EMC point of view. RF signal energy can get from the emitter to the receptor by conduction or by radiation. We’ll discuss that later. Regardless of the energy transfer process, using the FCC classification scheme we … [Read more...]
Random or Coherent Signals
In the previous post, I indicated that coupled Broadband energy levels are determined by whether the signals are random or coherent. Random/non-coherent signals originate from sources that are not time related. A couple of good examples would be receiver thermal noise and DC motor brush noise. Another would be the RF environment taken as a whole. Because the individual energy … [Read more...]
Just when you thought it was safe to turn off the light…
Well, I’ve used my quota of words for the month of May so now I’m going to have to make the next several posts somewhat shorter. That’s what happens when you get on a really passionate topic. The last post was about smart electric meters and the un-smart way in which the power companies have tried to make their case. We all know that it falls under the heading of WIIFM . . . … [Read more...]
