> At the risk of incurring John's wrath ......:-)) Not at all. I'm interested in HF too. And, I've spent months trying to quiet switchers on spacecraft.
What I do have a lot of wrath for is lame-brained "ecco-activists" who are totally ignorant of the principles of physics, chemistry, and EE and the clueless politicians who don't know (or care) about the difference between engineering reality and stinking manure. > The trouble with the so-called green switch-mode "transformers" is they > pollute !! .............the radio spectrum!! We still have LF BC services > in > Europe and an LF amateur band.The noise floor has risen by nearly 20dB in > the past 10 years, due to badly designed equipment, and/or badly policed > EMC > regs. Iron core transformers didn't give these problems. It also affects > many radio clock syncs from MSF on 60kHz (there I managed to get an > on-topic > comment in :-)) ) The fact is that switchers can be made quiet. It costs a bit more, but should be done. -John ================== _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
