Hi,
here are some pictures of my LISN:
![](http://abload.de/thumb/2013-12-0113.22.16f5sth.jpg)
Schwarzbeck is a very well-known Company in the EMI/Antenna-Business.
The two big Ls for decoupling the Mains-Line from the EUT are the most dominating Part in this thing. There's another Filter in this shielded part, but it's quite hard to open it, so there's just a "peek-shot".
AFAIK this Unit is not compatible with the standards anymore, but it's nice for me to be able to measure Common- and Differential-Mode noise, since I'm not doing any compliance-stuff in my free-time. I use it to measure and minimize noise on the Line:
![](http://abload.de/thumb/nt3sbjyk.jpg)
In this example I modified a switching-PSU for minimal EMI because it is used in HAM-Radio environment. It was compatible with the standards (commercial PSU), but we wanted more
![Wink ;)](https://www.eevblog.com/forum/Smileys/default/xwink.gif.pagespeed.ic.cldandycH0.png)
And, yes, i know this setup has nothing to do with any standard in EMC, it was just for orientation.
The Receiver used is a full compliance Receiver from Rohde & Schwarz, the ESHS 30. A bit older (and slow) but still quite good. And of course the must-have 10dB-Attenuator at the Input
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/xsmiley.gif.pagespeed.ic.R8GFI-pF6f.png)