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References: [ +from:w1rfi@arrl.org: 541 ]

Total 541 documents matching your query.

141. RE: [RFI] Chattam & Wells/Perfect Fit Industries Electric Blanket (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 10 Feb 2005 17:44:05 -0500
The reports I have back is that they will exchange them upon complaint. I can hear a couple of them on my way to work. The strongest one in my neighborhood is at 304 George Washington Tpke, and the o
/archives//html/RFI/2005-02/msg00033.html (10,444 bytes)

142. Re: [RFI] electric fence interference (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 6 Apr 2005 10:33:54 -0400
In the fence case I got involved with, the culprits were poor splices and gate hooks. In two cases, it was evident that the sparking was eating through the fence wire, which sooner or later would hav
/archives//html/RFI/2005-04/msg00000.html (9,641 bytes)

143. Re: [RFI] [TenTec] Whirlpool Duet RFI (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Sat, 24 Sep 2005 00:20:36 -0400
Almost no digital equipment other than personal computers are going to be certificated (FCC's word) or authorized under a Declaration of Conformity. Most digital equipment is "verified," meaning that
/archives//html/RFI/2005-09/msg00038.html (9,484 bytes)

144. [RFI] Anritsu ML-428B Manual (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 7 Nov 2005 16:24:25 -0500
If any of you have an owners manual or service manual for this EMC receiver, please contact me. Anritsu ML-428B Ed Hare, W1RFI ARRL Laboratory Manager 225 Main St Newington, CT 06013 Tel: 860-594-031
/archives//html/RFI/2005-11/msg00001.html (6,867 bytes)

145. Re: [RFI] FCC posting via ARRL (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 9 Mar 2007 18:43:40 -0500
The plus side of all this is that ARRL has Mike Gruber, W1MG, who works on these RFI issues full time. Information on the ARRL's power-line noise process is found at http://www.arrl.org/tis/info/rfi-
/archives//html/RFI/2007-03/msg00005.html (9,768 bytes)

146. Re: [RFI] Buying New Vehicle - RFI issues with these models? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 31 Aug 2007 07:55:18 -0400
One of the quietest vehicles I have used was a 2004 Trailblazer. There was a bit of injector noise on 7 MHz, but on 14 MHz, it was barely noticeable. I drove the vehicle into a local state forest, on
/archives//html/RFI/2007-08/msg00064.html (12,763 bytes)

147. Re: [RFI] CFLs and UV myth (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 25 Feb 2009 14:43:08 -0500
A good article that explains the issues with the study is at: http://www.arrl.org/rfsafety/lapin/2000/04/18/1/ The ARRL web page on RF safety, http://www.arrl.org/rfsafety, has some good information
/archives//html/RFI/2009-02/msg00137.html (10,218 bytes)

148. Re: [RFI] Rectified 120Hz RFI? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 6 Oct 2010 21:55:07 -0400
Jim is right; that's exactly what happens most of the time with power line noise. Rarely, the arcing can be assymetical on positive and negative peaks, usually when there is some corona involved. No
/archives//html/RFI/2010-10/msg00002.html (12,241 bytes)

149. Re: [RFI] HomePlug Experience? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Wed, 6 Oct 2010 22:07:38 -0400
It's hard to believe that it goes back over 10 years now, but the HomePlug protocols do not use the Amateur bands, with the exception of the 5 MHz band, which was allocated after the protocols were w
/archives//html/RFI/2010-10/msg00003.html (10,305 bytes)

150. Re: [RFI] HomePlug Experience? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Thu, 7 Oct 2010 06:42:17 -0400
That almost sounds like something could be wrong. At ARRL HQ, we have an extensive Ethernet and radio operation continues pretty much noise free. There is some noise on HF to the W1HQ club station,
/archives//html/RFI/2010-10/msg00005.html (14,241 bytes)

151. Re: [RFI] HomePlug Experience? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Fri, 8 Oct 2010 04:01:10 -0400
When they are actually transmitting data, you should be able to hear them pretty well outside the HF ham bands. 73, Ed Hare, W1RFI ARRL Laboratory Manager 225 Main St Newington, CT 06111 Tel: 860-594
/archives//html/RFI/2010-10/msg00019.html (14,413 bytes)

152. Re: [RFI] Power Line Noise Conundrum (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Sun, 10 Oct 2010 07:31:19 -0400
Hi, Kim. Long time no chat. I trust all is well with you. The noise you are hearing "again' could be a recurrence of the orginal noise or be a new one. Keep that in mind as you are looking for the so
/archives//html/RFI/2010-10/msg00026.html (17,854 bytes)

153. Re: [RFI] POwer line noise (cont) (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 11 Oct 2010 15:37:25 -0400
Maybe, but not necessarily. Some power-line noises can continue in the rain. Anecdotally, it has been reported to me that insulators that develop noise tend to not have that noise diminish in the rai
/archives//html/RFI/2010-10/msg00031.html (8,879 bytes)

154. Re: [RFI] Excellent RFI notes by ON4WW (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Tue, 28 Dec 2010 09:52:15 -0500
In an engineering environment, you are completely correct, Jim. However, in terms of discussing interference from licensed transmitters, the use of that simple term is an important way of differenti
/archives//html/RFI/2010-12/msg00159.html (12,338 bytes)

155. Re: [RFI] RFI and Smart meters (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Sat, 15 Jan 2011 05:41:12 -0500
Here is some info on smart meters: http://www.arrl.org/smart-meters 73, Ed Hare, W1RFI ARRL Laboratory Manager 225 Main St Newington, CT 06111 Tel: 860-594-0318 Email: W1RFI@arrl.org ________________
/archives//html/RFI/2011-01/msg00139.html (8,876 bytes)

156. Re: [RFI] Help with Bad RFI. (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Sat, 15 Jan 2011 05:55:00 -0500
Hi, Rick, Some power companies don't learn until they've been burned a few times. :-) But I agree, the nature of the noise doesn't sound like power line. In that case, the power company is not respon
/archives//html/RFI/2011-01/msg00140.html (10,570 bytes)

157. Re: [RFI] Help with Bad RFI. (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 17 Jan 2011 08:52:52 -0500
The ARRL did have a sounds of RFI page that unfortunately didn't get ported to the new site. We have located a volunteer who is coming to HQ this week to get the page up and running again, so hang ti
/archives//html/RFI/2011-01/msg00149.html (9,431 bytes)

158. Re: [RFI] High Efficiency Heat Pump (or furnace) RFI ? (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 17 Jan 2011 08:54:19 -0500
A mile away! My word! I will be MOST interested in finding out what the manufacturer and model of this device is, as there is no doubt at all that this greatly exceeds the FCC conducted emissions lim
/archives//html/RFI/2011-01/msg00150.html (9,821 bytes)

159. Re: [RFI] Help with Bad RFI. (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 17 Jan 2011 09:15:03 -0500
Hi, Jim, We had such a page for a couple of years on the old ARRL site, and I don't recall more than a single outside contribution to the sounds page. As my earlier post said, I hope to see that page
/archives//html/RFI/2011-01/msg00151.html (13,177 bytes)

160. Re: [RFI] Help with Bad RFI. (score: 1)
Author: "Hare, Ed W1RFI" <w1rfi@arrl.org>
Date: Mon, 17 Jan 2011 09:26:53 -0500
At 700 feet away, it is very likely that these devices exceed the Class B conducted emissions limits. From what I am starting to see as reports trickle in is that either these grow-light ballasts mee
/archives//html/RFI/2011-01/msg00152.html (13,602 bytes)

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