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 ...
I just need a Faraday cage
so my Phone doesn’t Track
me to the jiggly bar,,,
Radio Shack still around?
He worst thing in a house is a plasma TV. I have no idea how these ever got past the FCC.
What do you think about one of these?
RF Explorer Digital Handheld Spectrum Analyzer 6G Combo Plus - Slim
50KHz to 6.1GHz handheld (PC connectable, w/free software. $395)
https://www.amazon.com/dp/B089QBXX6C/ref=cm_sw_em_r_mt_dp_QY1SNPGACC0WX1W0MCY3
It seems it would cover the spectrum affordably...
~Easy
I don’t know but that’s possible.
I bought my first guitar from Lafayette :-)
I’m ignorant about this stuff; but early last year we lost OTA reception of two of our local television stations that we had reliably received for years. It seemed to happen after a high-rise apartment building near us put up a bunch of fancy antenna stuff on the roof...
I used to work in them
I think Ota transmitter guys just don’t give a damn anymore.
I live 1.2 miles from a tower and it does that.
Dudes you have been broadcasting for 100 years what he fudge is going on over there?
We can only still get one local DC channel here through the antenna anymore.
(And it’s definitely NOT the one that we prefer.)
It used to be was tested before being allowed to be imported into the US. It certainly is the case with radio equipment. Why aren’t offending electronics and lighting devices rejected?
UHf can be blocked like that, Vhf tends to soldier on
In Dc?
When I lived 55 mi from Dallas a and 100 from ft Worth, I got 63 channels OTA with $35 antenna in the attic of a single story house.
Yes.
We used to be able to reliably get Fox 5 here in DC on Livestream; when that ended, we could get it OTA. Then, about a year ago, everything got scrambled.
Nothing on Livestream anymore, and I think only ABC 7 OTA.
We mainly watched Fox 5 for morning news and weather (husband was a fan of Tucker Barnes.)
It’s been so long since we’ve been able to see it, 5 may have gone as nutsy as the other local channels have, so...maybe it’s no loss.
LED light bulbs are also offenders.
Maybe we just need a better antenna - the one we have was pretty cheap, but it worked so well for a long while that we didn’t worry.
can you suggest one for OTA local television?
great place to take a nap!
PAX?
Anechoic chambers can give you vertigo and cause you to pass out, this used to happen to a co worker, she would get very disoriented when entering a chamber, and boom.. she’s down.
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