Posted on 02/08/2021 6:45:06 PM PST by tbw2
Assembling A Low Cost EMI Troubleshooting Kit – Part 1 (Radiated Emissions)
https://interferencetechnology.com/assembling-low-cost-emi-troubleshooting-kit-part-1-radiated-emissions/
Like the Siglent analyzer.
Upgrade from the terrific 1104 X-E equipment
which gives FFT outputs and other autocomputations.
The biggest little EMI offender in your home is switching power supply’s and compact florescent lights.
learn to make some sniffer probes to find the obnoxious leaks.
The biggest little EMI offender in your home is switching power supply’s and compact florescent lights.
learn to make some sniffer probes to find the obnoxious leaks.
And brother I can not stress bonding things enough to isolate EMI
LED bulbs are no charm to the electromagnetic world either.
Somewhat related, imported light dimmers too. I understand the Communist Chinese stuff is such garbage they’re notorious for belching out RFI. Goes along with tons of other imported garbage which lacks proper shielding etc.
If run off DC they are OK but AC is another noise problem.
If run off DC they are OK but AC is another noise problem.
If run off DC they are OK but AC is another noise problem.
Damn triple post! I blame EMI!
Most chinese crap is noisy crap.
That nearly covers the entire industry.
If every damn thing in a shielded room is not bonded chasing EMI is like chasing a ghost.
Check out the portable tinySA spectrum analyzer for $49.95.
This marvel is about the size of a deck of cards and covers 100 kHz to 960 MHz.
It’s my first go-to instrument for tracking down EMI issues.
Can I just order one from Heathkit?
Used to drive me nuts building wide band receivers when high powered amps would go into oscillation and I would solder the can to the copper clad.
Problem solved until some dumbpass engineer tells me I can’t do that, we need to use a conductive epoxy, like Chobond.
I soldered that shit down and covered it in Chobond lol
There, now it works and yer none the wiser. Lo not per print, but it works.
Same as any cheap SDR.
Lafayette electronics or Bob’s military bargain warehouse
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