Also in EU we have a lot of lousy PS's, with and without CE or other
markings.
73 Henk PA5KT
Op 22-8-2020 om 22:42 schreef Bill Steffey NY9H:
I looked at their website at many of their power supplies.
While they all have FCC ...non have EU. The Meanwells have EU. I
think the EU standard is either much cleaner spec OR it is enforced,
while the fcc spec is probably ignored. Had same issue with under
cabinet kitchen lighting and solution was a Meanwell supply that had
EU ( I think they all do). Hanley might not bother with the EU market.
bill
On 8/22/2020 3:24 PM, Michael Aust via RFI wrote:
Great video MikeWB6DJI
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On Saturday, August 22, 2020, Jim
Brown <jim@audiosystemsgroup.com> wrote:
Thanks for posting, Steve. In today's world, a large fraction of RF
noise is electronic noise, NOT power line noise. My tutorial app note
addresses this, how to tell the difference, how to chase both types of
sources. The two links cover the same material, but the second, slides
for a talk, is newer and includes more graphics.
http://k9yc.com/KillingReceiveNoise.pdf
http://k9yc.com/KillingRXNoiseVisalia.pdf
73, Jim K9YC
On 8/22/2020 11:35 AM, VE6WZ_Steve wrote:
A church nearby to my QTH decided to install an LED string to the
church steeple cross. The RFI was very bad on 160m.
The problem was a very dirty Hanley LED driver switch-mode supply.
Replaced with a Mean Well unit and now all is quiet.
I made a YouTube video showing the isolation, testing and solution.
Some of these LED drivers are EXTREMELY noisy, but they don't need
to be!
https://youtu.be/tvjRwZTNLHs <https://youtu.be/tvjRwZTNLHs>
73, de steve ve6wz
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