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281. Re: [RFI] LED Street lights (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 12 Oct 2014 01:29:24 -0700
What's between the battery and the LEDs? Kurt _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2014-10/msg00017.html (8,161 bytes)

282. Re: [RFI] LED Street lights (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 12 Oct 2014 21:12:00 -0700
Some just have a diode resistor and inductor to drop the voltage down, convert it to "DC" and smooth it out, I have some night lights like this, a lot are going to switching mode power supplies in t
/archives//html/RFI/2014-10/msg00019.html (8,387 bytes)

283. Re: [RFI] Under Cabinet LED Lighting Follow Up (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 27 Oct 2014 19:10:47 -0700
one? The century and a half old and notoriously silent and nearly incapable of RFI linear power supply. Also known as a "transformer". Why waste time and money on a bunch of tricks, buy one at a thr
/archives//html/RFI/2014-10/msg00049.html (7,806 bytes)

284. Re: [RFI] Switchers ... (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Fri, 14 Nov 2014 23:09:04 -0800
Replace it with a twenty-five to fifty cent linear supply from a thrift shop of the same specification. You want noise or silence? You can drop a few tens of bucks over a few weeks to try to make th
/archives//html/RFI/2014-11/msg00037.html (8,098 bytes)

285. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 7 Dec 2014 00:24:35 -0800
I have it in DM09, it's CODAR, oceanographic radar. Not bad for a 40W signal! Kurt _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mail
/archives//html/RFI/2014-12/msg00003.html (6,886 bytes)

286. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 7 Dec 2014 01:51:47 -0800
Some info from a link I found a few years ago: http://cordc.ucsd.edu/projects/mapping/ Check "site diagnostics" and "By Frequency" for a small list. Check the rest of the links on the left too, such
/archives//html/RFI/2014-12/msg00004.html (7,316 bytes)

287. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 7 Dec 2014 19:53:18 -0800
Several CODAR signals throughout HF tonight on known frequencies on the list I posted earlier. This is a 25+ year old common signal, dozens can be found day and night, how come it's a misidentified m
/archives//html/RFI/2014-12/msg00014.html (7,848 bytes)

288. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 8 Dec 2014 20:25:10 -0800
Sounds like daily monitoring of CODAR for twenty plus years and about a dozen other CODAR signals heard across HF at the same time up to 26 MHz, last night was a good night, or bad, depending on how
/archives//html/RFI/2014-12/msg00020.html (8,674 bytes)

289. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Wed, 10 Dec 2014 20:42:12 -0800
"Tuning right now to 4580 Khz reveals two CODAR transmitters sweeping away, over a span of about 600 Khz. Much different sounding than the 1916 signal." Two CODARs would be about 60 KHz at the outsid
/archives//html/RFI/2014-12/msg00026.html (9,836 bytes)

290. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 15 Dec 2014 21:55:14 -0800
Nearly identical system, different intent: - It is a high-frequency surface-wave radar (HFSWR) system, developed by Raytheon Canada for the Canadian military. It seems to be a new version of the SWR5
/archives//html/RFI/2014-12/msg00027.html (9,254 bytes)

291. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 16 Dec 2014 17:57:28 -0800
Picture of the antennas: http://www.raytheon.com/capabilities/rtnwcm/groups/ncs/documents/image/rtn_ncs_products_hfswr_beach.jpg Kurt _______________________________________________ RFI mailing list
/archives//html/RFI/2014-12/msg00029.html (8,966 bytes)

292. Re: [RFI] 1.916 Intruder? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 16 Dec 2014 20:54:04 -0800
That's probably not THE antenna, now that I think about it, look at those palm trees! It is the antenna for that system, however. Yeah, looks like an inverted V beam. I've seen similar systems in so
/archives//html/RFI/2014-12/msg00031.html (8,838 bytes)

293. Re: [RFI] RFI hunting on 160: TH-F6a? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sat, 3 Jan 2015 21:01:06 -0800
kHz. Reminds me of such things in the mid to late 90's when a lot of these turned out to be "wireless" phone jacks. Every now and then you'd hear a very wide and distorted FM signal. I don't recall
/archives//html/RFI/2015-01/msg00009.html (8,356 bytes)

294. Re: [RFI] RF getting into 4-port wirelss router. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 12 Jan 2015 20:49:17 -0800
Well, not on RFI since the OM asked for help... I would start by making chokes out of all wires entering the device. Wrap a half-dozen turns around your hand in a loop four to five inches across and
/archives//html/RFI/2015-01/msg00090.html (10,422 bytes)

295. Re: [RFI] RF getting into 4-port wirelss router. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 13 Jan 2015 17:27:44 -0800
I guess there's no chance in Hell of it ever working then... Sorry OM, you're screwed. It's not a choke (despite the term being in use since the late 1800's because it "choked off" stray currents) a
/archives//html/RFI/2015-01/msg00093.html (10,379 bytes)

296. Re: [RFI] RF getting into 4-port wireless router - progress (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Thu, 15 Jan 2015 18:48:11 -0800
My place, which had all permits and was claimed to have met all codes and inspections had no neutral wire. The neutral for a 200A service, in use since 1981, was the water inside a 110' 1-1/4" PVC w
/archives//html/RFI/2015-01/msg00131.html (10,381 bytes)

297. Re: [RFI] What's the QRM on 7.260MHZ? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Fri, 23 Jan 2015 20:35:38 -0800
I asked on other groups, nothing... Kurt _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2015-01/msg00167.html (6,472 bytes)

298. Re: [RFI] RFI -14072 kHz (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 3 Feb 2015 17:13:42 -0800
I see a lot of clowns with PSK31 signals 100-300 Hz wide. Most of these jerks need to have their radios confiscated... Hearing various computer sound effects too... I think I see your signal, yes, ab
/archives//html/RFI/2015-02/msg00002.html (6,864 bytes)

299. Re: [RFI] RFI -14072 kHz (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 3 Feb 2015 18:59:09 -0800
"Sounds like fun, almost as much fun as watching paint dry on my living room walls." Sure, if that's what gets you off... As for me and Class C... It goes back to hearing the unknown signals in the 1
/archives//html/RFI/2015-02/msg00004.html (9,666 bytes)

300. Re: [RFI] Zapped (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 23 Feb 2015 20:08:25 -0800
Don't routers and such work at 2.4 GHz? Microwave oven operate at 2.54 GHz, If you're shutting stuff down at a great distance, I'd be worried about radiation leaks. If you don't have a microwave rad
/archives//html/RFI/2015-02/msg00077.html (8,696 bytes)

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