Posted on 02/08/2021 6:45:06 PM PST by tbw2
Those of us who are either in-house or independent EMC consultants can benefit greatly by assembling our own EMI troubleshooting kit. I’ve depended on my own kit for several years and it has proven not only valuable, but depicts a sense of professionalism in dealing with your own product development engineers, their managers, or your clients, as the case may be. Mine is designed around a Pelican 1514 roller case (http://www.pelican.com) that includes a padded divider, so it is easy to transport to the area needed. You’ll also want to order the optional lid organizer, model 1519, for carrying extra tools, cables, and other small parts. See Figure 1.
This article will summarize what I’ve included in my own kit, and because everyone’s needs might be a little different, you’ll want to use this information as a guide. Feel free to add or subtract tools and test equipment as desired. You should expect to spend about $3k to $5k for the complete kit, depending on whether you make a lot of DIY probes or buy commercial, but this price range includes a spectrum analyzer.
I’ll list just the most important items for assessing radiated emissions in Part 1. You’ll be able to download Part 2 at the end of this article, which will include additional items required for assessing various immunity tests, along with many other useful tools and equipment. Some of this information is based on the book, EMI Troubleshooting Cookbook for Product Designers[1], by Patrick André and Kenneth Wyatt, with foreword by Henry Ott.
(Excerpt) Read more at interferencetechnology.com ...
just a cheap high gain antenna
just a cheap high gain antenna
no
Locast.com pluto.tv
Try those
Where was that picture taken?
“And brother I can not stress bonding things enough to isolate EMI”
Do you mean “grounded?”
How useful would a spectrum analyzer be for locating RFI that is coming from a nearby power line? It is intermittent but very strong. I figure if I can narrow it down to the power pole maybe the utility will actually check it out. I see Amazon has some cheaper spectrum analyzers and I might want to consider that.
“ How useful would a spectrum analyzer be for locating RFI that is coming
from a nearby power line?”
I have one of these I spot check all my stuff with. It’s nicely directional.
EMF Meter,Advanced GQ EMF-390 Multi-Field Electromagnetic Radiation
3-in-1 EMF ELF RF meter, 5G Cell Tower Smart meter Wifi Signal Detector
RF up to 10GHz with Data Logger and 2.5Ghz Spectrum Analyzer.
Multiple high sensitivity sensors installed for detecting Power line, Smart
meter, Cell phone, Microwave etc.
Identify/recognize the common possible sources, such as Power line, Cell
Tower, Microwave, Static etc.
https://www.amazon.com/dp/B07JGJ897T/ref=cm_sw_em_r_mt_dp_2CH82ZRSSEF2RVAS9NBQ
It found a horrifically badly radiating Echo “Dot” unit in my menagerie, so it has paid for itself already.
~Easy
yes
PING
I’ve heard of that effect
Interestingly, it’s in a WWII hanger that was used to modify the B25s for Doolitles raid on Tokyo. The tail code on the aircraft matches the location and the URL tells the publicly released source of the hotlinked picture, so there are no OPSEC issues. I first saw that pic in an ad on Facebook for some unrelated hardware I was looking at.
I think these chambers and EMI testing in general are fascinating.
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