Subject: | Re: [RFI] Noise changes when room lights turn on / off |
---|---|
From: | Jim Brown <jim@audiosystemsgroup.com> |
Reply-to: | jim@audiosystemsgroup.com |
Date: | Sat, 15 Sep 2012 10:26:09 -0700 |
List-post: | <rfi@contesting.com">mailto:rfi@contesting.com> |
On 9/15/2012 10:07 AM, Eddy Swynar wrote: with ferrite devices installed at both ends of it. If you've studied my RFI tutorial, you would know that simply clamping cores onto a cord isn't likely to do much on the HF bands, even 10M, because the resonant frequency of a single turn through most cores is around 150 MHz. For 10M, you must WIND 3-4 TURNS through the core to lower the resonant frequency to 10M. Another point that your story, and Pete's stories makes quite well -- persistence pays off! 73, Jim K9YC _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi |
Previous by Date: | Re: [RFI] Noise changes when room lights turn on / off, Eddy Swynar |
---|---|
Next by Date: | Re: [RFI] Noise changes when room lights turn on / off, Eddy Swynar |
Previous by Thread: | Re: [RFI] Noise changes when room lights turn on / off, Eddy Swynar |
Next by Thread: | Re: [RFI] Noise changes when room lights turn on / off, Eddy Swynar |
Indexes: | [Date] [Thread] [Top] [All Lists] |