Phil, I just posted this to Comments: Almost all of these devices generate a ton of radio frequency interference which could block emergency alert radios, irritate local CB and Ham operators, and int
Wes, The aluminum rain gutter on my home is capable of being an antenna of sorts - but it only becomes one if I clip a line to it and load it with RF from a tuner - or likewise use it to receive. Sam
Wes, As I recall a number of them tested clean when new but with use, presumably heat-related, their filtering degraded and the RFI rose. Given the preference for politicians and bureaucrats vs engin
Could the "resistive material" be powdered toroidal material? Might one then twist it around a cable, or wrap it like a coil at a specific point, and at certain frequencies might it absorb RF? Might
Surplus Sales always seems to be 50-150% higher than anyone else, perhaps some of this will show up elsewhere? Might be interesting to experiment with. But what makes it so good at 'absorbing' rfi??
If you can find a power strip with a "transformer" outlet grab it. I found it a simple way to quiet a RFI nighmare device. The square white device was for game devices and provided 5v and 115v outlet
I have need of a 120vac to 24vdc power supply. It, of course, needs to be RF-quiet. Anyone familiar enough with these surplus supplies who can spot one that is more likely than the others to run clea
Thanks to the helpful Hams on this list I was able to ID the right PS. I did spend a little more and acquired a used Power-One F24-12-A 24V/12A 28V/10A Single-Output Linear DC Power Supply for $19. p
Tony, Do you have a common electrical system? Could his circuit have a bad ground or neutral and it is using a path through yours? David I recently discovered that my neighbors CFL lighting was causi
What else did you have hooked up uniquely for the contest? Something that was connected then, and not now, was coupling the signal into the detector wiring. I tried multiple bands and multiple beam h
There was a Russian sub off the New England coast ... just sayin' ... I'm seeing the same thing here! Multiple occurances from the BC band up thru 160m. The 160 noise covers 1788 to 1836. I noticed t
Listening to teens talk about video games prompted this ... I wonder if 1KW pulses of modulated AM might smoke-out the source? Perhaps literally. The RF pathway out could also be a RF pathway in ...
We chose a 50" LG - LCD w/LED backlight - it is RFI quiet. Your challenge with any device may be aging components rather than only the initial performance. Some plasma's are reportely RFI-quiet while
Is it possible that a wireless alarm system might generate RFI in the VHF range? I am chasing a signal mixing with the FM-BC band. I have to check but I believe it is a 2.4gHz wireless. We chose a 50
Are you using an Apple, Linux, or MS OS, please? Do you know if any of these are Linux-friendly? I bought a $20 dongle ala Jan QST and have it working on my PC. About 65-1700 mhz all modes, including
I wasn't going to pursue this but you know that curiosity thing ... I am guessing that each device will have a unique spectrum vulnerability, and that may not be the same frequency at which it is ill
Our teen son has a charger for USB that does the same. I plugged it into a power strip with a "transformer" outlet (not the new once that merely make room for a wall-wart but a small isolation transf
AFCI breakers are not merely different - they are an utter nuisance! The assertion is that they sense partial failures in the walls due to poor connections or damage to wires. They claim that most ho
Why do I suspect that this thing could be a RFI nightmare? Am I wrong? http://www.ebay.com/itm/110950894139?ru=http%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_sacat%3D0%26_from%3DR40%26_nkw%3D11095089413
Corrected post & link ... What are the chances that this 4V-35V IN to 1.23v - 30v OUT 3A DC-DC buck converter is a RFI nightmare? http://www.ebay.com/itm/110950894139 -- Thanks! & 73, KD4E.com David