Surprisingly, the answer to that question is often "yes." Here are just a few examples: Years back, a company called Phonex made wireless modem jacks that operated on 3.53 MHz. They were carrier-cur
I don't think that we will ever know the percentage of fines collected, Jim, but for most of the people involved, the fining process probably involves lawyers and a major hassle, and that alone may b
Yes, and of all the people and groups that are wise about these RFI matters, ARRL has been the only group that is consistently active year after year. Broadcasters and radio astronomers are notably a
I happened to see this email, so I am going to get one of these from Lowe's and make some measurements of it. ARRL does have the capability of making measurements of noise levels, to see if these dev
I went to my local Lowes and didn't find one. Does anyone have a model number? Was it really at Lowes, or maybe some other store? Ed, W1RFI Greg, suggest getting the product manufacturer and model no
Thanks. I am going to take a trip there next week and buy one to test. I'd really like to know whether these meet the FCC limits or not. Interference reports give me a good excuse to do that. :-) ___
That's not exactly accurate, Dave. I am a QRPer, so we connect them in series with my HW8 and the resultant non-linearities allow me to achieve QRP Worked All States simultaneously on all harmonicall
What is typically done is that ARRL files a complaint with the FCC. Unfortunately, the FCC then takes the position that is will not comment on active complaint cases, and in too many cases, it is not
This is one of the rare cases where a ham tell us that a particular device has no interference. :-) One down, 10 million models of electronics stuff to go. Ed We just installed our new Kenmore Eleite
It may have been said already, but all pulse-width-controlled motors used in furnaces are compliant with the FCC rules if they have even a modest amount of filtering. A furnace is an appliance, as de
Yes, I think that is known, but it never hurts to make that clear. So, if my home furnace interferes with my ham station, does my wife get the fine? She and I are both operators of the offending devi
I have seen filters for both the load and lamp side, so you may need to try both. I had thought it was on the Hydrofarm site, but I don't see the load and lamp filters listed. I think I ordered some,
A GFCI will protect against a shock that would result from the hot wire conducting current to the ground conductor or external ground, but it will not protect against a shock from the hot to the neut
Actually, the formal name of ARRL now is ARRL, with American Radio Relay League still maintained, of course. Now, as to the noisy grow lights, in some areas, growers are concerned that law enforcemen
In theory, there should not be any hidden junction boxes behind drywall, but as I have seen on Holmes on Homes, that's not always the case. :-) I think I'd be inclinded to use the noise itself as my
Yes, that's it, and I do have a set on order. If any of you have a cooperative neighbor, let me know and we can get you to try the filters. If they work, you can keep them. Most growers have more tha
Good point, Gary, and I completely agree. Hams need to be extremely cautious when approaching neighbors over any RFI situation, especially any that may be doing indoor gardening. Some of these people
I can't imagine this reliably working well. If noise gets onto long, overhead power lines, it will radiate for a long distance. The noise radiated by lines closer to the shack than the actual source
I agree, Mike. Ultrasonics give false positives on corona, and false negatives if something on the structure is blocking ultrasonic sound. I don't think that most hams need to use ultrasonic dishes.
A list of "bad guys" could be effective, but Dave is right; a "good guy" today can be a bad guy tomorrow. Also, where do we draw the line? There is a major difference in kind between a ham that buys