Tony, I did have a discussion with Ashley Holmen of Tesla, however the testing you mention is not quite correct. I asked for a typical optimizer to do some testing with here at the lab, but she is no
Console 3 has this In the DSP box.... just to the left of the volume slider and the mute button is a little icon that looks like a graphic equalizer. Cycle through it for a oscilloscope display. No c
Bob, I too am a little disappointed that the radiation mechanism was not mentioned. In fact if you look closely at the photo of "the bulb" or maybe it was just "a bulb" from a stock photo it says 60
Dan, Please do not open the stove or do anything internal. First off this is critical to safety. The RFI can do a lot more than just make noise or flash lights. I have a recent case in the ARRL RFI d
Randy , I would urge you to call Samsung on your own whether someone else has the ear or not. This would get you into the records as having a problem with type of stove. The more calls Samsung gets f
Jim makes a bunch of good points here. Take a look at the datasheet for the #31 snap on cores. Look on page 2, where it show the series equivalent loss impedance for a single pass through the core as
Tony, Regarding your statement below: "We found high levels of RFI on the A/C lines throughout my neighbor's home and that's likely the case with all Solar Edge installations .............since there
Hi Jim I agree. The real point of the email was if you know what the source of the noise is I would concentrate on that particular issue. Instead f wandering between inverter, optimizer, then inverte
Tony, Look for a "linear" type audio amplifier. Better way I guess to say it is analog. Something running Class AB or A Analog power supply. And analog amplifier. 73, Paul Cianciolo, W1VLF ARRL EMC E
All, A Ham called the lab and said he was having very bad RFI and had DF'ed it to a new housing development about 1800 feet away. After working with the builder he got access and found the source of
Bert, Not really even 3 feet of wire failed muster. With a resistor as a load it did fine. Which was how I originally tested it. Another interesting fact was you could "tune" where you wanted the har
In addition to Ed's comments "twisting" the wire had little if any effect. Connecting one 1 of 2 speaker leads lead to a slight decrease in emissions. A single wire added to either of the speaker out
Dave, Scott make a good point about one run of lights may be quiet, and the next batch not be. However I have bought for my own home 18 of a certain model Lights of America 4 foot shop lights. They w
I call it "quality noise" You want just your target noise to invert and cancel. Anything else will tend to add "new" noises from the pickup antenna. See here https://youtu.be/spre7Wn0Kqs 73, Paul Cia
Sorry about the clunkiness of the video.. But I think it gets the point across. 73, Paul Cianciolo, W1VLF ARRL EMC Engineer ARRL - The national association for Amateur Radio 225 Main Street, Newingto
Gary, In your measure measurements during field testing do you test for 2nd and 3rd harmonic? I think for lower power stations the FCC says -80 dBc and -83 dBc for high power.. I don't know exactly.
Dave, Actually this is not BS...however it is a little deceiving. Check out this PDF on a typical Generac inverter. https://a1solarstore.com/index.php?dispatch=attachments.getfile&attachment_id=441 S