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Home > Archive > Electrical code Compliance > June 2005 > RFID reader and 55022 conducted test
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RFID reader and 55022 conducted test
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| kiwiyeung@gmail.com 2005-06-22, 6:25 pm |
| Hello,
I'm building a RFID reader operating at 13.56MHz with a 12V DC source.
During the test on 55022 conducted emission, using a very good
220VAC-12VDC transfomer, we found a very high peak at the obvious
13.56MHz. We found that the noise was coupled from the antenna through
the air to the power line. We made this conclusion because in one test
we'd seperated the power (transfomer) source from the reader and the
testing equipment, that is only the power cord is used for the
conducted test. We still found the noise!! What can we do? Shall this
test be exempted for this equipment?
Thanks
Rgds,
kiwi
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| Michael 2005-06-22, 6:25 pm |
| Hello!
"kiwiyeung@gmail.com" <kiwiyeung@gmail.com> wrote in
news:1119451472.023743.89980@g43g2000cwa.googlegroups.com:
quote:
> Hello,
>
> I'm building a RFID reader operating at 13.56MHz with a 12V DC source.
You should check with the test lab if the EN 55022 is really the correct
standard. An RFID reader is _not_ an unintentional radiator, so I am not
sure if that standard applies ...
Michael
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