Hello,
Has anyone been testing to the conducted emissions stated in the ETS
300-132-2 for DC-DC telecom power supplies, which requires
measurements down to 25Hz; both narrowband and wideband noise.
1. How is the LISN made? Is it commercially available?
a. From Fig 7 in the Standard, is that resistor R a "must"? If yes,
then we need many different values for different EUT ratings!!!;
b. How about the capacitors, can I use as many as I wish?
2. What is the best instrument to use/buy for this purpose? Can I
use the "dynamic signal analyser" to measure the narrow band noise?
Best Regards,
Roger Hsu
22 Oct 1998
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