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61. [RFI] 433 Mhz Wireless Thermometer (score: 1): Author: w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Tue, 18 Dec 2001 11:14:35 -0500; As a follow-up, a ham I know who works in the auto industry had to do a bit of research on 433.92 Mhz. The auto industry is considering using that frequency (among others) with their tire-pressure se; /archives//html/RFI/2001-12/msg00047.html (16,319 bytes)
62. [RFI] 433 Mhz Wireless Thermometer (score: 1): Author: w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Tue, 18 Dec 2001 17:55:58 -0500; The biggest hope I can see is that if they cannot use 433.92 MHz worldwide, we may be able to talk them into using a different frequency in the US. The hams in the auto industry can just imagine the; /archives//html/RFI/2001-12/msg00051.html (10,801 bytes)
63. [RFI] Noise (score: 1): Author: w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Wed, 31 Oct 2001 16:15:10 -0500; Pete, Can you send me a .wav file of the noise? I am still collecting RFI sounds and want to start a "Sounds of RFI" page as soon as my Tech Info webmaster gets back to work. (He is out for a few wee; /archives//html/RFI/2001-10/msg00036.html (7,907 bytes)
64. [RFI] RFI: Cordless 2 meter Interlopers (score: 1): Author: Hare,Ed, W1RFI" <w1rfi@arrl.org (Hare,Ed, W1RFI); Date: Mon, 18 Jun 2001 17:06:42 -0400; If this was already posted, please forgive me; I am catching up on emails (especially reflector email). http://www.arrl.org/news/stories/2001/05/30/3/?nc=1 This is the first of several complaints the; /archives//html/RFI/2001-06/msg00021.html (12,324 bytes)
65. [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)
66. [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)
67. [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)
68. [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)
69. [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)
70. [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)
71. [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)
72. [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)
73. [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)
74. [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)
75. [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)
76. [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)
77. [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)
78. [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)
79. [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)
80. [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)

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