Anyone know if these, or some other diode-based rectifier substitutes, are roughly as EMP-resistant as equivalent tubes? -- Thanks! & 73, doc, KD4E ... somewhere in FL URL: bibleseven (dot) com ____
Neat! Would that be a potential solution for the use of some other solid state devices? Does the paraffin have a limited useful life in this application? -- Thanks! & 73, doc, KD4E ... in sunny & war
It may help to know if it continues up the spectrum, just to assist in tracking the source. I have copied this to a couple of RFI lists for their informed input. Permit me clarify. With the USB cabl
It sounds as though these things may be in violation of FCC regs. Have you considered filing a complaint wth the FCC and perhaps the FTC? It may trigger a recall and replacement with properly design
Have the LED's with built in pulsing circuits been tested for RFI? They sound highly suspect. -- Thanks! & 73, doc, KD4E ... in sunny & warm Florida :-) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ T
This brings one back to the "squeaky wheel" truism. In Sunday School one learns the story of "the unjust judge", bureaucracy is classic "unjust judge" and the solution in both cases is the same. Pou
Which of these snap-ons might be most likely to stop a problem I have with 6M getting into my LDG AT-100Pro autotuner, please? http://www.allelectronics.com/cgi-bin/category/235/Ferrites.html -- Than
Thanks guys! I will track down some Mix 31 and 33 and try both. -- Thanks! & 73, doc, KD4E ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Projects: http://ham-macguyver.bibleseven.com Personal: h
Just read, saved, and printed these two helpful sites re. RFI (both focused on vehicle RFI for which I also have a Chevy Astro-specific article here somewhere). http://k0bg.com/beads.html http://memb
It may be of value to document the specific model and the part number of the control module. Could be that LG got it right once and not again and some Hams may choose to acquire one and also a spare
Anyone familiar with the Sorenson DCS 55-55 rack mount power supply? Are they RFI clean? I am thinking of replacing an Astron VS-50M with a used one as the Sorenson is 0-55VDC & 0-55A and has digital
It is become nearly impossible to use an AM radio to listen to anything but the strongest stations anywhere near populated or industrialized areas. The RF-pollution is obscene and grows daily. Since
If you unplug the Roomba charger and activate the Roomba do you get the same noise? Or is the charger one source of noise and the Roomba another? -- Thanks! & 73, doc, KD4E Personal: http://bibleseve
Not necessarily. How much power on what Ham band is necessary to get into these things, causing them to work poorly or to cease working at all? They opened the door by deliberately leaving out the co
May a Chevy diesel be made RFI-quiet or is there a significant design flaw that makes that impractical? Does this apply to all Chevy diesels or only newer or older models? -- Thanks! & 73, doc, KD4E
It must have had a discernible source. Were you certain it was from the ignition vs some other source? Perhaps something freewheeling for the hydraulics or something? Just wondering as I am always cu
Has anyone experienced dissimilar-metals troubles when using copper or other grounding straps and/ or connectors in a vehicle? -- Thanks! & 73, doc, KD4E Personal: http://bibleseven.com/kd4e.html ___
Anyone had experiences with the different after-market Brake Control devices? Or a source for that information? I have just acquired a Hopkins Hoppy 47225 Brake Control for my Chevy 1500. I am wonder
We are on an approx. 330' wide 1500' long 10ac lot. There are 45K lines up one side that are about 10yrs old, they were in place when we bought the property. They are very quiet and the only hassle i