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References: [ +from:dave@nk7z.net: 912 ]

Total 912 documents matching your query.

281. Re: [RFI] RFI Broadcast Station Mixing in Crank-Up tower? (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Mon, 19 Oct 2015 19:58:26 -0700
I will be most interested in this discussion, as I have a friend with a tower and possible the same issue? -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For Mix
/archives//html/RFI/2015-10/msg00053.html (9,421 bytes)

282. Re: [RFI] 160 Meters Interference Tracked Down To Local Manufacturing Facility (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Fri, 30 Oct 2015 05:25:12 -0700
Nice work! Lucky you it is so narrow band... I just had one pop up last night, that looks like a switcher on 40 Meters... It has been low level for about 6 months, now it hit 5 db over S9... Sigh...
/archives//html/RFI/2015-10/msg00062.html (9,213 bytes)

283. Re: [RFI] 160m & 80m RFI issues requesting ideas for ANC4 sense antenna to cancell out local noise (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sun, 01 Nov 2015 11:16:39 -0800
Be sure to listen to your "white" noise, under AM demodulation... I bet it has more structure that way... :) -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For M
/archives//html/RFI/2015-11/msg00009.html (10,303 bytes)

284. Re: [RFI] Compass Vectors (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 01 Dec 2015 06:01:25 -0800
If you are doing this by hand, as I do, then remember, to keep the map and your bearings, in either True, or Magnetic North, I always keep my maps in True North, and adjust my compass readings to Tru
/archives//html/RFI/2015-12/msg00001.html (11,612 bytes)

285. Re: [RFI] Compass Vectors (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 01 Dec 2015 07:47:27 -0800
I thought I said that... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://groups.yahoo.com/neo/groups/mixw/info For Dopplergram inform
/archives//html/RFI/2015-12/msg00005.html (15,792 bytes)

286. Re: [RFI] Compass Vectors (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 01 Dec 2015 08:54:38 -0800
Hi Mike, I had a location here in Eugene, that would throw off a compass by 20 degrees every time, took me a few months to find out why... Turns out there was a buried transformer there... -- Thanks
/archives//html/RFI/2015-12/msg00007.html (20,674 bytes)

287. Re: [RFI] Compass Vectors (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 01 Dec 2015 19:51:26 -0800
Hopefully you found this out prior to concrete placement... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://groups.yahoo.com/neo/grou
/archives//html/RFI/2015-12/msg00018.html (9,167 bytes)

288. Re: [RFI] Laser Christmas Lights (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Fri, 04 Dec 2015 16:05:01 -0800
The FCC raids all United States Walmart stores in a single coordinated effort dubbed-- "Operation Christmas Surprise", confiscating all Part 15, and 18, non-compliant devices, then initiates a "Citat
/archives//html/RFI/2015-12/msg00047.html (10,720 bytes)

289. Re: [RFI] Laser Christmas Lights (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sat, 05 Dec 2015 07:29:41 -0800
That way, they are still doing what they were designed to do... I get it now! :) -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://grou
/archives//html/RFI/2015-12/msg00052.html (13,036 bytes)

290. Re: [RFI] 40 Meter OTH Radar? (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sun, 13 Dec 2015 20:20:00 -0800
I am pretty sure this is Chinese OTHR. It's very much like a mini version of the old Woodpecker, only it covers part of a ham band, not the entire ham band like the old Duga 2, (Steel Yard), facility
/archives//html/RFI/2015-12/msg00070.html (9,295 bytes)

291. Re: [RFI] 40 Meter OTH Radar? (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sun, 13 Dec 2015 20:59:21 -0800
HI, If you are really interested in this, join the group below, in my sig, Dopplergrams. Peter Martinez, (creator of PSK31), is on the group, and is a bottomless pit of information on this... He is l
/archives//html/RFI/2015-12/msg00072.html (9,613 bytes)

292. Re: [RFI] 40 Meter OTH Radar? (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sun, 13 Dec 2015 21:00:26 -0800
As a matter of fact, there is a small discussion going on now about OTHR now... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://group
/archives//html/RFI/2015-12/msg00073.html (8,727 bytes)

293. Re: [RFI] Chasing RFI on 6M (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Mon, 21 Dec 2015 15:09:01 -0800
Hi, I would recommend a loop, and use the null, not the peak... Much simpler to get your headings that way. See: http://nk7z.net/i-have-rfi-now-what-locating-it/ in that page, I covered how I did my
/archives//html/RFI/2015-12/msg00082.html (9,344 bytes)

294. Re: [RFI] 40 Meter Noise Source Found (sort of) (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Wed, 23 Dec 2015 09:24:42 -0800
Nice piece of detective work... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://groups.yahoo.com/neo/groups/mixw/info For Dopplergram
/archives//html/RFI/2015-12/msg00086.html (14,172 bytes)

295. [RFI] Series on RFI... (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Wed, 23 Dec 2015 17:04:35 -0800
If any are interested, see: http://nk7z.net/category/info/mitigation-of-rf-interference/i-have-rfi-series/ for a three part series on RFI issues... Also, look at the "RFI Mitigation" nave option for
/archives//html/RFI/2015-12/msg00089.html (7,118 bytes)

296. Re: [RFI] Finding house noise sources (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 19 Jan 2016 05:20:06 -0800
Do you by chance have any lamp dimmers on that ckt? Dimable ceiling lights for the kitchen maybe? -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support
/archives//html/RFI/2016-01/msg00018.html (11,885 bytes)

297. Re: [RFI] Finding house noise sources (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Tue, 19 Jan 2016 12:14:41 -0800
See: http://www.electrical-online.com/understanding-doorbell-systems/ If it were my house, I'd lift the wire on the C connection on the bell and see if that changed things... -- Thanks and 73's, For
/archives//html/RFI/2016-01/msg00031.html (15,955 bytes)

298. Re: [RFI] Grow Light RFI (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sat, 23 Jan 2016 10:52:54 -0800
Please do post the results... I have been looking for a RF quiet device to recommend... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http
/archives//html/RFI/2016-01/msg00056.html (12,180 bytes)

299. Re: [RFI] line noise detection? (score: 1)
Author: David Cole <dave@nk7z.net>
Date: Sun, 24 Jan 2016 15:48:13 -0800
Could you expand a bit on what exactly you mean by a "Line Noise Detector"? -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net For MixW support see; http://groups.ya
/archives//html/RFI/2016-01/msg00062.html (7,405 bytes)

300. Re: [RFI] Blower noise from Carrier Furnace (score: 1)
Author: Dave Cole <dave@nk7z.net>
Date: Thu, 28 Jan 2016 08:14:36 -0800
If possible, when you replace your HVAC system, have the company doing the install write into the contract both you and they sign, that the new device will not generate RFI, and will be FCC part 15 c
/archives//html/RFI/2016-01/msg00084.html (12,469 bytes)

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