Slightly OT - Nearfield probe for EMI sniffing

May 20, 2005 4 Replies

Anyone know the best way to handbuild a nearfield probe for a spectrum analyzer? I'd like to do some EMI sniffing before going to the lab. My attempts at using a couple turns of wire at the end of a piece of coax don't seem to work well.



We use a rubber ducky antenna scrounged from an old ham radio.

an70 from

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page 54 onwards

martin

After the first death, there is no other. (Dylan Thomas)

Excellent. Just what I was looking for and written by Jim Williams at that.

Thanks.

A quick correction. The ap note was written by Jim Williams, but the the description within about the nearfield probe wa written by Bruce Carsten

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