Hi all, Are there any commercially available rfi filters that can be installed, for example, at the a/c power meter? I need to suppress noise which is conducted onto the overhead power distribution l
Can anyone suggest a brand or manufacturer of _quiet_ 120 to 12 volt switching power supplies for low voltage lighting? Units in the condo building next to ours have exterior low-voltage accent light
Jim, Thanks for the helpful information. I was delighted to have finally tracked down the source of my rfi problem, but my happiness was short-lived. It seems that all 3 units in the condo building i
Dave, The lights are exterior low-voltage halogen accent lights. The source of the rfi is the so-called "transformer" which converts the 120v a/c to 12v a/c (pretty sure it's a/c anyway). These "tran
Many thanks to Cortland and everyone else for the responses. They've been very helpful. The device in question has no FCC label that I could find. Here's what's printed on it: Miller Model LVT-60N E1
I've just spoken to the general contractor who remodeled the condo buildings. He's been on the phone with the "head electrician" of the company that did the wiring using the LVT-60N supplies. The mes
It just might be.... I do have a bit of good news to report. My next-door neighbor in this condo building happens to be the general contractor who did the remodel of the building containing the nois
Indeed. The "quiet" RT60A units purchased at the local electrical supply house also have the backwards "RU" logo. And like the noisy units, they don't have any FCC id on them. The complete text on t
I received the following from Mike Gruber at ARRL HQ and received his permission to re-post it here. -- Steve, The rules regarding this sort of thing can be a bit confusing. Any device that generates
Hi Cortland, The items in question have neither an FCC id nor any indication that verification has been done. They don't say anything about it one way or the other. Also, there are no instructions. T
Joe, If you suspect lawn lights, search the archives for the subject 'Low voltage lighting solid state "transformers"' for one possibility. Do you have overhead power lines in your area? Although it
Search for 'Low voltage lighting solid state "transformers"' in the archives. At the local electrical supply house, I found a filtered unit made by RSA Lighting, model RT60A. These units are still sw
http://lists.contesting.com/archives//html/RFI/2006-12/msg00063.html has some interesting, and disturbing, information regarding these devices. If "self-approval" with no outside oversight works for