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41. [RFI] Helping Neighbors 101 - A True Story (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Mon, 18 Jun 2001 17:11:24 -0400; For information specifically for the neighbors of hams, see: http://www.ce.org/tech_education_and_services/67-12005.cfm 73, Ed Hare, W1RFI ARRL Lab 225 Main St Newington, CT 06111 Tel: 860-594-0318 I; /archives//html/RFI/2001-06/msg00022.html (23,594 bytes)
42. [RFI] Touch Light Update #2 (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 21 Jun 2001 16:45:42 -0400; Jon, Can you post a model number and source? John Phillips, the ARRL Lab's new RFI engineer, has been testing some of these types of devices to see if they comply with the conducted emissions limits.; /archives//html/RFI/2001-06/msg00025.html (10,077 bytes)
43. [RFI] Coffee Pot RFI! (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Fri, 29 Jun 2001 10:34:49 -0400; Hi, Mike, I bet the thermostat in the coffeepot was arcing over. It could be defective, or just a shoddy design. Can you make a recording of the resultant noise and send it to me? I am collecting RFI; /archives//html/RFI/2001-06/msg00047.html (9,427 bytes)
44. [RFI] FW: More info on 2 mtr long range phones (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Mon, 21 May 2001 17:34:26 -0400; Hi, Guys, I agree with Ed; let's get this properly to the FCC. I was in the process of doing just that through Chris Imlay, but unfortunately, in all this hoopla, they have changed their web pages so; /archives//html/RFI/2001-05/msg00045.html (41,948 bytes)
45. [RFI] FW: More info on 2 mtr long range phones (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 24 May 2001 18:22:40 -0400; Nope, sorry; the unit has expired or been withdrawn. Maybe one of these times, I will actually be able to buy one of these and send it to the FCC before all the publicity causes the seller to lay low; /archives//html/RFI/2001-05/msg00047.html (8,921 bytes)
46. [RFI] [DX4WIN] 2m High Power Cordless Phones!!!! (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Wed, 30 May 2001 12:56:44 -0400; Hi, guys, See: http://www.arrl.org/news/stories/2001/05/30/3/?nc=1 It took a bit of digging, but ARRL managed to winnow down the numerous companies selling these units and file a formal complain with; /archives//html/RFI/2001-05/msg00053.html (10,867 bytes)
47. [RFI] RFI levels (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 1 Mar 2001 07:27:27 -0500; The levels for man made noise that are cited in the program are: -110.4 dBm - industrial -114.7 dBm - residential -120.0 dBm - rural -133.6 dBm - remote This presumably assumes an isotropic radiator.; /archives//html/RFI/2001-03/msg00000.html (7,069 bytes)
48. [RFI] RFI levels (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 1 Mar 2001 10:04:18 -0500; Hello, Mauri, Even with an external noise source, or with any exteranal or internal signal whose bandwidth is significantly greater than the receiver bandwidth, the bandwidth of the receiver does af; /archives//html/RFI/2001-03/msg00002.html (9,889 bytes)
49. [RFI] Mobile radio noise - Nissan Pathfinder (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 8 Feb 2001 09:43:31 -0500; This is a "classic" Ford problem. Ford has a TSB about adding a filter to the fuel pump. See: http://www.arrl.org/tis/info/fuel.html 73, Ed Hare, W1RFI ARRL Laboratory Supervisor 225 Main St Newingto; /archives//html/RFI/2001-02/msg00010.html (8,954 bytes)
50. [RFI] part 15 intentional radiators (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Tue, 20 Feb 2001 08:15:08 -0500; Hi, Kris, Probably the biggest difference is that when contacted by hams, Winegard decided that this was not a major problem and that they didn't have to do anything to address it. AT&T, the operator; /archives//html/RFI/2001-02/msg00016.html (9,404 bytes)
51. [RFI] RFI from low voltage lighting? (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Tue, 20 Feb 2001 12:53:07 -0500; Hi, Bill, The problem is that the power supply is probably a switch-mode supply. These can generate a lot of broadband noise. Some hams have replaced the power supply with an analog device. It may al; /archives//html/RFI/2001-02/msg00018.html (9,248 bytes)
52. [RFI] RFI levels (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Wed, 28 Feb 2001 17:32:06 -0500; A few years back, ARRL did some measurements of the ambient noise levels at typical HF stations. The results were presented at a TIA T1E1.4 committee meeting (VDSL standards). The paper is available; /archives//html/RFI/2001-02/msg00023.html (8,852 bytes)
53. [RFI] DFing power line interference (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 4 Jan 2001 21:06:24 -0500; An upcoming QST article will feature a more simple receiver project for VHF DFing, using a loop and a 120-MHz receiver. Not sure what issue. The Radio Shack based article is available at: http://www.; /archives//html/RFI/2001-01/msg00008.html (9,436 bytes)
54. [RFI] DSL modem problem (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Fri, 5 Jan 2001 12:04:03 -0500; his download speed from around 30kb to 8kb. Radio Shack is now selling a filter designed for high-speed modem/DSL filtering. You can also try their "telephone RFI" filter; I have measured them and f; /archives//html/RFI/2001-01/msg00011.html (11,053 bytes)
55. [RFI] DSL modem problem (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Fri, 5 Jan 2001 18:06:08 -0500; Mea Culpa; I had just looked at them briefly and obviously misunderstood! 73, Ed Hare, W1RFI ARRL Laboratory Supervisor 225 Main St Newington, CT 06111 Tel: 860-594-0318 FAX: 860-594-0259 Internet: w; /archives//html/RFI/2001-01/msg00013.html (8,800 bytes)
56. [RFI] power lines, contd. (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Tue, 16 Jan 2001 13:10:20 -0500; Hi, Pete, The answer to the question is found in two part of the FCC rules. First, power lines are incidental radiators -- they don't deliberately generate RF signals, but incidentally do so as a sid; /archives//html/RFI/2001-01/msg00023.html (12,100 bytes)
57. [RFI] RFI/EMC Help Wanted (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 25 Jan 2001 10:36:15 -0500; http://www.arrl.org/announce/jobs/ Sorry for the "spam," but it IS related to Amateur Radio. I hope my making an occasional contribution here buys me a litte slack. :-) 73, Ed Hare, W1RFI ARRL Labora; /archives//html/RFI/2001-01/msg00035.html (7,145 bytes)
58. [RFI] RFI Troubles (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Fri, 22 Dec 2000 18:48:23 -0500; Hello, Gerry, speakers on his computer. One first good step for you and your neibhbor to take is for you to both understand the differences between RFI caused by rules violations at your station and; /archives//html/RFI/2000-12/msg00018.html (16,911 bytes)
59. [RFI] 1-way telephone interference (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Thu, 2 Nov 2000 08:46:57 -0500; Yes, it is possible for RF to get into the audio section of your telephone without getting into the outgoing audio. The cure would be the same as any other type of telephone interference -- keep the; /archives//html/RFI/2000-11/msg00002.html (8,614 bytes)
60. [RFI] Noise (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Mon, 16 Oct 2000 21:06:18 -0400; If the noise manifests itself as a buzzy signal about every 15.75 kHz, for antenna connected TVs, try a high pass filter at the TV set and a common-mode choke (about 10 turns of the TV feed line onto; /archives//html/RFI/2000-10/msg00014.html (8,391 bytes)

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