Equipment for radiated emissions troubleshooting

Thread Starter


Joined Oct 15, 2009
Can anyone recommend some basic equipment to "troubleshoot" radiated emissions failures? Or to "predict" possible sources prior to testing?

spectrum analyzer?
old rabbit ear/bowtie antennas?
e/h field probes?
CM current probes?

On a 48VDC product I had a failure in the 36 to 47Mhz range that was solved by a simple addition of clamp on reffites but just want to see if I can move past the band-aid fix and find the source.


Joined Aug 8, 2005
Small diameter (~ 1" or less) loop antennae that connect to the spec an. to help zero in on radiators

Can probaly make some yourself, check google.