Search String: Display: Description: Sort:

Results:

References: [ +from:K8RI@rogerhalstead.com: 493 ]

Total 493 documents matching your query.

301. Re: [RFI] CO2 & CO (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 26 Oct 2013 07:58:47 -0400
CO2 (carbon dioxide) is only poisonous when it accumulates to a point where it displaces oxygen in the environment, Again, that is suffocation (lack of Oxygen) and not because you are breathing CO2 w
/archives//html/RFI/2013-10/msg00031.html (9,893 bytes)

302. Re: [RFI] CO2 detectors and RFI (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 26 Oct 2013 22:09:59 -0400
Monox (CO) detectors are important if you have any potential CO sources. Any combustion fired devices, vehicles, etc. are a potential source. We have them in every room and the basement. "First Alert
/archives//html/RFI/2013-10/msg00036.html (12,845 bytes)

303. Re: [RFI] Safety Recall: 15 million APC Surge Protectors sold before 2003 (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 02 Nov 2013 05:48:25 -0400
Now this is a good reason to avoid use of MOVs in branch circuits! There are 700 reports of overheating and melting caused by Surge Protector Devices sold prior to 2003 and 55 property damage reports
/archives//html/RFI/2013-11/msg00001.html (12,698 bytes)

304. Re: [RFI] RFI in the news (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 07 Dec 2013 20:51:02 -0500
There are many cases of TV antennas hard wired to the TV set along with the cable, making the TV antenna a strong radiator of these signals, In many cases there is a preamp, no longer powered in the
/archives//html/RFI/2013-12/msg00075.html (13,227 bytes)

305. Re: [RFI] RFI quiet USB 3.0 hub (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 02 Feb 2014 02:54:55 -0500
I realize asking about the RFI from a USB device (considering its essentially a digital amp with tons of harmonics and a lot of handy antennas plugged into it) is a bit of a stretch. But thought I wo
/archives//html/RFI/2014-02/msg00002.html (8,499 bytes)

306. Re: [RFI] Fraudulent FCC RFI Certification (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 18 Feb 2014 19:59:04 -0500
A company was caught providing the FCC one thing to get part 15 certification, then selling something else. This involves 433 MHz which most hams probably don't care about, but it reveals what goes o
/archives//html/RFI/2014-02/msg00110.html (8,365 bytes)

307. Re: [RFI] Fraudulent FCC RFI Certification (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 18 Feb 2014 20:02:32 -0500
A company was caught providing the FCC one thing to get part 15 certification, then selling something else. This involves 433 MHz which most hams probably don't care about, but it reveals what goes o
/archives//html/RFI/2014-02/msg00111.html (8,844 bytes)

308. Re: [RFI] Fraudulent FCC RFI Certification (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 18 Feb 2014 20:10:41 -0500
Speaking of Sears...Look up Sears connection with the demise of the US television receiver manufacturing. It's like reading a crime novel. It's amazing it never made a splash in the news. 73 Roger (K
/archives//html/RFI/2014-02/msg00112.html (8,416 bytes)

309. Re: [RFI] (no subject) More info on this spam (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 11 Mar 2014 19:58:09 -0400
I happened to find this in the trash, before the daily flush. My system is set up to automatically flush based on Subjects lines that are blank, contain "no subject" and "digest", so if I don't happe
/archives//html/RFI/2014-03/msg00007.html (8,163 bytes)

310. Re: [RFI] No RFI/EMI Filtering on triac ... (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 16 Apr 2014 01:46:31 -0400
It's a component. AFAIK components have no requirements. I've built many Triac and SCR controllers. Typically they use a Diac to trigger the on state on each half cycle. The trigger pulse is somethi
/archives//html/RFI/2014-04/msg00110.html (8,727 bytes)

311. Re: [RFI] Decoupling small trailer to reduce RFI? (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sun, 25 May 2014 05:01:01 -0400
My wife has one that gets parked under the 40 m antenna. I never hear it when she pulls up, or starts up. I've only operated VHF/UHF from that car, no HF. (Not enough room or power) Yes, I have an 8
/archives//html/RFI/2014-05/msg00064.html (8,454 bytes)

312. Re: [RFI] Noisy computer Power Supply (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Fri, 06 Jun 2014 10:25:46 -0400
I have 4 Corsair HX850 (850W) supplies (certified modular) 1 is less than 3 feet and 1 is about 4 feet from the HF station in the den. The HF Rig FTDX 5000MP is on the same network. The two CPUs are
/archives//html/RFI/2014-06/msg00043.html (8,917 bytes)

313. Re: [RFI] Samsung Pulls Plug on Plasma Production (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 03 Jul 2014 20:27:01 -0400
Hopefully, those still in service will fail soon. Whats the average MTBF on plasma displays. The LED powered displays are quite long lived although I know "Quite long lived" is more than a little vag
/archives//html/RFI/2014-07/msg00002.html (10,867 bytes)

314. Re: [RFI] Cree LED Light Bulb (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Mon, 11 Aug 2014 01:27:56 -0400
We have all CFLs through the house. Excluding the garage (4 150W equiv) and basement (14 4' fluorescent tubes) , Out of 17, I've only had 2 fail in the last 2.5 to 3 years. I only have a single sub m
/archives//html/RFI/2014-08/msg00010.html (8,708 bytes)

315. Re: [RFI] WallyHome? (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Tue, 02 Sep 2014 04:19:17 -0400
Used to be, entitled was an active verb meaning, to giving title or referring to giving title. IE, the article was entitled. 73 Roger (K8RI) "When they are synonymous with named or called, there is n
/archives//html/RFI/2014-09/msg00011.html (9,484 bytes)

316. [RFI] Nature's RFI on the way. (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 11 Sep 2014 10:47:00 -0400
Whether it's major or minor, there is a massive CME on the way. The article is written for the general public, but worth reading: http://www.wnd.com/2014/09/a-giant-magnetic-explosion-on-the-sun/ 73,
/archives//html/RFI/2014-09/msg00021.html (6,674 bytes)

317. Re: [RFI] Nature's RFI on the way. (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Thu, 11 Sep 2014 18:45:02 -0400
I remember that. We'd essentially be reduced by communicating with the written word with most transportation shut down. For those that would still run, fuel would likely be unavailable. Fresh produce
/archives//html/RFI/2014-09/msg00023.html (11,622 bytes)

318. Re: [RFI] Anyone tested this 1050w PS for RFI? (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Sat, 11 Oct 2014 05:09:59 -0400
I couldn't find that specific supply ,but here are some from Enermax and Antec in that power range. http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%20%20600479298%20%20600479299
/archives//html/RFI/2014-10/msg00015.html (10,425 bytes)

319. Re: [RFI] Another Intermod Source - TVs (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Fri, 17 Oct 2014 06:25:48 -0400
I didn't get a chance to spend time on it other than a fast once over. I need to read it for detail, but I think we've seen the same thing, only different for years. A common source for TVI to them a
/archives//html/RFI/2014-10/msg00021.html (9,371 bytes)

320. [RFI] A valid look at line conditioners! (score: 1)
Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>
Date: Wed, 22 Oct 2014 02:37:59 -0400
Before every one lumps line conditioners in with the Audio phools, "The professional computing industry has used them for years," because we have a need for them. THEY ARE FOR PROTECTION not quality!
/archives//html/RFI/2014-10/msg00037.html (12,754 bytes)


This search system is powered by Namazu