jfor at quik.com
Mon Jun 27 22:07:16 UTC 2011
> 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
> 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
> 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
> comment in :-)) )
The fact is that switchers can be made quiet. It costs a bit more, but
should be done.
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