Mail Archive Search: <+from:n6wg@comcast.net>

Results:

References: [ +from:n6wg@comcast.net: 13 ]

Total 13 documents matching your query.

1. Re: [RFI] W8WWV noise (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Tue, 17 Feb 2004 11:54:28 -0800; Pete You said one was a silent wall switch. Could it have been a mercury switch? Not sure how that would couse the RFI you describe, but they are used as silent switches. 73, Bob N6WG _______________; /archives//html/RFI/2004-02/msg00113.html (8,294 bytes)
2. [RFI] Quote from ARRL Letter (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Sat, 6 Mar 2004 12:45:35 -0800; "Kanawha County Commission President Kent Carper, W8CHS, said Amateur Radio operators provide the county with $25,000 to $30,000 a year in free services during disasters." Once BPL raises the noise l; /archives//html/RFI/2004-03/msg00025.html (6,962 bytes)
3. Re: [RFI] Portable Shortwave Antenna (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Mon, 8 Mar 2004 12:19:06 -0800; I suggest a very short antenna. You want tolimit pickup to your immediate vicinity so you can relate what you are hearing to what you are looking at. You need to be able to move the radio close to th; /archives//html/RFI/2004-03/msg00044.html (6,882 bytes)
4. Re: [RFI] help IDing HF noise/interference type (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 18 Mar 2004 09:40:31 -0800; Kevin The only way to be sure the source isn't in your own home is to kill the power to the house. If you can hear the receiver from the area of your fuse panel, you can flip switches one at a time.; /archives//html/RFI/2004-03/msg00072.html (7,416 bytes)
5. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 18 Mar 2004 10:09:49 -0800; Deny I have the same problem with my two laptops. I went to my favorite ham flea market/swap meet and looked for older analog power supplies that plug into the wall. Over here we call them "wall wart; /archives//html/RFI/2004-03/msg00076.html (8,101 bytes)
6. Re: [RFI] Quiet Shack PC Systems? (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 18 Mar 2004 10:22:55 -0800; Now I'm curious. If ferrites are hard to apply, would wrapping the cable in aluminum foil and grounding it at one end to the shack ground provide any protection? Seems like a cheap experiment. 73, Bo; /archives//html/RFI/2004-03/msg00077.html (7,721 bytes)
7. Re: [RFI] Editorial on BPL in Electronic Design Magazine (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Tue, 17 Aug 2004 09:57:24 -0700; Mike I wrote a reply to Mark's editorial. I'm curious to see how much, or whether they post it. 73, Bob N6WG _______________________________________________ RFI mailing list RFI@contesting.com http:/; /archives//html/RFI/2004-08/msg00038.html (7,493 bytes)
8. Re: [RFI] Ferrite Beads (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Mon, 18 Oct 2004 13:57:38 -0700; Ford I suspect you are confusing the suggested ranges for broadband transformer use with the optimum ranges for RF choking use. The best way to see how a toroid or bead is going to work is to do just; /archives//html/RFI/2004-10/msg00045.html (6,596 bytes)
9. Re: [RFI] Ferrite Beads (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Thu, 21 Oct 2004 08:25:46 -0700; Ford If you have one or two toroids to spare, I suggest an experiment. Take some inductance measurements on the toroids with a few turns of wire on them. Now break them as you described. Put them bac; /archives//html/RFI/2004-10/msg00077.html (8,264 bytes)
10. Re: [RFI] RF Impedance measurement (score: 1): Author: "Bob Tellefsen" <n6wg@comcast.net>; Date: Mon, 25 Oct 2004 09:23:38 -0700; George Check W8WWV's web site. He has done some tests and comparisons of these analyzers. I have the CIA-HF, the VA-1 and a General Radio 916A. The VA-1 is the most portable, if you are going up a to; /archives//html/RFI/2004-10/msg00119.html (7,714 bytes)
11. Re: [RFI] 1Hz Noise (score: 1): Author: "Robert Tellefsen" <n6wg@comcast.net>; Date: Tue, 23 May 2006 08:37:07 -0700; Kelly Here is an idea then. Since the noise comes from a well defined direction, you could use one of the antenna noise cancelling devices like MFJ and others sell. Careful adjustment would pretty mu; /archives//html/RFI/2006-05/msg00041.html (9,724 bytes)
12. Re: [RFI] High Noise Floor (score: 1): Author: "Robert Tellefsen" <n6wg@comcast.net>; Date: Mon, 8 Oct 2007 12:59:11 -0700; Hello Landon Were you able to check for any directionality of the noise source with a loop antenna? That might at least narrow the search to some degree. Good luck and 73 Bob N6WG ___________________; /archives//html/RFI/2007-10/msg00026.html (8,202 bytes)
13. Re: [RFI] Non-transmitting tower causes RFI/EMI? (score: 1): Author: "Robert Tellefsen" <n6wg@comcast.net>; Date: Wed, 14 Nov 2007 08:13:06 -0800; Rick How about a Google search on that detector, looking for false alarms? If it is happening in more than just his own unit(s), it may be generic to that detector and clearly not your problem. Good; /archives//html/RFI/2007-11/msg00058.html (10,628 bytes)

Current List: 1 - 13
Page: [1]