There used to be a product to do wireless linking on computers to the telephone line and it used FM at about 3.515 .... maybe some others were on similar low frequencies? 73 from Bill - WD8ARZ wd8arz
145.255, then you also have a risk of getting in to the cable by the same leakage point. We are not supposed to be able to get into their cable at all. Any leakage into the ham band is unacceptable
Great info Dave, and thanks for sharing it. Experience has also pointed out to us that if 'any one' phone on a multi phone line is susceptible to Rfi, it tends to 'share' that Rfi with all other phon
If the monitor uses a switching supply, there is no such thing as turning it off unless you unplug it. Have found Tv's with switching supplies that put out more noise into my shortwave listening and
It would be easier to say that switching power supplies, and digital circuitry can produce Rfi in a broad range of devices...... especially where wiring can help radiate the signal, filters are rarel
Actually there are two ways to get sources for RFI reduction. One is lightening protection and the other is Emp protection. Following the recommendations for both will go a long way for Rfi protectio
Another interesting angle is to let them know that others have been 'listening' to the 'broadcast' from their home, and how the mike picks up so very very well at all hours of the day and night. Even
Due to the current nature of the messages on this reflector about Rfi and helping neighbors, maybe it is time for the sharing of an interesting story a friend of mine told me about that happened in a
Appreciate all of those that made contributions to this email below. Over the years, like most of you, I have had a variety of products in my home, from entertainment, washers, driers to ham radios e
Most of the electronics in my home is protected by putting a UPS (uninteruptable power supply) between them and the wall outlet. Avoid the cheap low end low power units. They dont last long, fail soo
Bought a Samsung LCD about a year and half ago that I just love. Bright screen, one of the clearest images I have ever seen. Didnt buy it for the 3D, but found I love it too ... no eye strain for me,
Comparisons can be made at Mouser using FAIR-RITE EMI Suppression Ferrite Cores.. http://www.mouser.com/MobileCatalog.aspx?page=1177&s=_wEWBh4BIwKGBR4BTAUFZW4tVVMeAVMFCjI2MzE2NjU3MDI For example I us
Classified / secret organizations world wide use a variety of methods to transmit information. Those methods are not limited to single frequency, fixed bandwidth, standard modulation radio frequency
Will never forget an experience I had while living in a studio hotel apartment while house hunting after a new job relocation. Didnt take long when I was missing ham radio, so I strung a thin random
Looks like reasons for some concern? Might be too early to tell. "Too many red flags to trust this bulb" http://www.cnet.com/products/finally-light-bulb/ 73 from Bill - WD8ARZ _______________________
It takes way way too long for my proper emails to be posted to this RFI list. Yet I see others being posted in the mean time. Thus I must be moderated. Based on my track record with many other sites
Previous emails have several days delays for getting to the forum. I also included you directly so that is probably the one your data is from ..... Thanks for your optimism. Will hang around and give
Thanks for sharing that info Kurt - Its that kind of detail on a product result that the rest of us can benefit from. Thank You - 73 from Bill - WD8ARZ South Bend, Indiana Interesting.... Along such
Tecsun 660 is a great hand held portable radio for listening around on the 160 meter ham band. Does good AM and SSB. Not unusual to use a few feet of wire antenna to improve pickup with out increasin
AC switching type power supplies tend to be very rfi noisy. Transformer type power supplies dont use the the dc to ac to dc switching that generate that RFI .... and should be quieter power supplies.