Aloha,
Are there any elecraft K3 owners on Oahu that's willing to share with me your "noise level, hi" that is, let me listen to the radio, especially when a plasma TV is on nearby. I'm trying to determine if it will reduce Plasma TV RFI more than my Icom 7600 does. The plasma TV sits about 8 feet from my radio and in tracing this horrible noise on 7.190 MHz, I found it was my TV. My wife and son watches this TV when the Triple H Net comes on at 9:00 PM HST (0700 UTC). Mahalo and 73, Delwyn KH6DC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
On Mon, 23 Aug 2010 19:56:22 -1000, Anna & Delwyn wrote:
>I'm trying to determine if it will reduce Plasma >TV RFI more than my Icom 7600 does. The plasma TV sits about 8 feet from my >radio and in tracing this horrible noise on 7.190 MHz, The cures for RFI from a plasma TV are 1) turn it off; or 2) replace it with an LCD. 73, Jim Brown K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
Any ham who purchases a plasma TV because it is cheap, will spend far
more in the agony of trying to cope with the noise. You can try to ferrite the cables coming out, but plasma TV's seem to be able to radiate interference directly from the set. The nearness of the TV to your radio should not matter if all the leads into the K3 are properly shielded. Your antenna is likely the means of reception. If you keep the noise when you switch off your antenna, then you are getting pickup from on the K3's connecting leads and can likely do something about that. Since the plasma TV is so close, "grounding" is not likely to help too much, as the TV can directly induce noise on the conductor to the actual ground, defeating a method that might work on a source farther away. Since the Plasma is in a particular spot, you may have success using something like the MFJ noise canceler. 73, Guy. On Tue, Aug 24, 2010 at 1:20 PM, Jim Brown <[hidden email]> wrote: > On Mon, 23 Aug 2010 19:56:22 -1000, Anna & Delwyn wrote: > >>I'm trying to determine if it will reduce Plasma >>TV RFI more than my Icom 7600 does. The plasma TV sits about 8 feet from my >>radio and in tracing this horrible noise on 7.190 MHz, > > The cures for RFI from a plasma TV are 1) turn it off; or 2) replace it with > an LCD. > > 73, Jim Brown K9YC > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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