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61. Re: [RFI] 120Hz period noise ID (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Sat, 27 Oct 2007 06:39:39 -0500; Hello Leigh, The pattern is the result of arcing. However, the picture alone would lead to a guess at best. If you can send me a wav file recorded in am mode I can tell you which way to go from here.; /archives//html/RFI/2007-10/msg00131.html (7,628 bytes)
62. Re: [RFI] Cellphone-Jammer Fad - Harmful to Ham Radio? (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Mon, 5 Nov 2007 22:30:09 -0500; Anyone that spends as much time as I do in front large, and small, groups of people try to conduct training seminars would certainly appreciate having one of those. I'd like to have one in my vehicle; /archives//html/RFI/2007-11/msg00009.html (8,221 bytes)
63. Re: [RFI] Car laptop adaptors (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Sun, 11 Nov 2007 09:06:53 -0500; Hey Chuck, I think I have the converter you need. I'll post the info tomorrow. I believe it's made by Lund and is 13vdc in and about 19vdc out. They are used for Panasonic tough book Mobile Data Term; /archives//html/RFI/2007-11/msg00033.html (7,726 bytes)
64. Re: [RFI] Car laptop adaptors (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Mon, 12 Nov 2007 12:47:51 -0500; Hey guys, I have several commercial and Amateur radios, 2 laptops, a mobile data computer w/900meg radio, IFR Spectrum Analyzer, O Scopes, RF FS meter and several other devices. All connected 24/7 wi; /archives//html/RFI/2007-11/msg00038.html (9,087 bytes)
65. Re: [RFI] CATV RFI? (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Thu, 22 Nov 2007 14:17:19 -0500; Hi Brad, It is possible that the RFI he is receiving is radiating from the Cable equipment and not originating from it. Cable TV Equipment, in my experience, doesn't radiate such a broad banded signa; /archives//html/RFI/2007-11/msg00085.html (9,043 bytes)
66. Re: [RFI] Rain induced static (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Tue, 4 Dec 2007 21:04:31 -0500; Hey everybody and Happy Holidays, This is at the end of my awake hours but I'm going to attempt to do this and make sense. The power line systems constructed with wooden poles are built when the wood; /archives//html/RFI/2007-12/msg00012.html (12,354 bytes)
67. Re: [RFI] power line noise that seems to peak in frequency (score: 1): Author: "RFI Services" <Mike@rfiservices.com>; Date: Mon, 10 Dec 2007 11:09:36 -0500; There are a couple things can affect a power line noise sources ability to peak at a particular freq. They are: 1. The receiving antennas resonant freq. has a band width, however every antenna works; /archives//html/RFI/2007-12/msg00024.html (9,316 bytes)
68. Re: [RFI] New 857, won't TX on 20m - RFI in truck meters and dial lights (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Sat, 13 Sep 2008 21:44:08 -0400; This may sound too easy to be true, I've had loose and poorly made RF connectors at the back of the transceiver cause that exact problem. Mike Martin RFI Services 6469 Old Solomons Island Rd Tracys L; /archives//html/RFI/2008-09/msg00020.html (9,224 bytes)
69. Re: [RFI] False Alarm (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Sun, 28 Sep 2008 12:13:58 -0400; Oh Grasshoppa, you learn valuable lesson, "A Grasshopper" Mike Martin RFI Services 6469 Old Solomons Island Rd Tracys Landing, MD 20779 rfiservices.com 240-508-3760 I was out trying to locate some ar; /archives//html/RFI/2008-09/msg00048.html (9,469 bytes)
70. Re: [RFI] DTV and Power line RFI (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Mon, 6 Oct 2008 15:35:46 -0400; So far, every time I've had an issue with Digital TV (DTV) it has been a gross miss-calculation of where the antenna should be directed. Also note that before investing in a new "Digital Ready" anten; /archives//html/RFI/2008-10/msg00024.html (9,264 bytes)
71. Re: [RFI] DTV and Power line RFI (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Mon, 6 Oct 2008 15:35:46 -0400; I was recently hired to resolve a TVI complaint and before I got there the customer called to say that his new Digital TV converter solved the problem. The utility called me and cancelled my visit. T; /archives//html/RFI/2008-10/msg00025.html (9,473 bytes)
72. Re: [RFI] DTV and Power line RFI (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Tue, 7 Oct 2008 16:39:14 -0400; I know I can count on you guys. Mike Martin RFI Services 6469 Old Solomons Island Rd Tracys Landing, MD 20779 rfiservices.com 240-508-3760 Well Mike, I'll keep an ear on those lines for you ;-) _____; /archives//html/RFI/2008-10/msg00028.html (9,042 bytes)
73. [RFI] Power line RFI (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Thu, 9 Oct 2008 14:20:46 -0400; This is a true statement: "The way for you NOT to do it is to go tug on pole guys or hit them with a mallet to see if you can find a sensitive pole..." Power line hardware sparks when two pieces of h; /archives//html/RFI/2008-10/msg00033.html (10,034 bytes)
74. Re: [RFI] Powerful RFI (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Fri, 10 Oct 2008 12:59:13 -0400; It's not likely to be a Merc Vapor. However the HPS bulbs are extremely common. This is a night time condition if the photo cell is good. If the Photo cell is bad it will malfunction 24/7. Never dayt; /archives//html/RFI/2008-10/msg00038.html (8,009 bytes)
75. [RFI] Power line Bandwidth Characteristics (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Sun, 12 Oct 2008 11:50:01 -0400; Hey guys, Experience in listening is the best tool for identifying power line sources verses other types including in-house arcing sources. A good scope helps as well. Here is some additional info th; /archives//html/RFI/2008-10/msg00042.html (11,419 bytes)
76. Re: [RFI] Power line Bandwidth Characteristics (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Sun, 12 Oct 2008 20:27:44 -0400; Sounds like open season at Pete's. Rutt must have been early. Mike Martin RFI Services 6469 Old Solomons Island Rd Tracys Landing, MD 20779 rfiservices.com 240-508-3760 This is good advice, as you mi; /archives//html/RFI/2008-10/msg00047.html (14,113 bytes)
77. [RFI] RFI - Solved (score: 1): Author: "RFI Services" <mike@rfiservices.com>; Date: Tue, 14 Oct 2008 14:27:16 -0400; Before you call the power company, make note of a sticker that should be on the side or bottom of the light. The number and color will tell them all needed about the light. Also make sure they know i; /archives//html/RFI/2008-10/msg00054.html (7,514 bytes)
78. Re: [RFI] RF - Noise (score: 1): Author: "Michael Martin" <mike@rfiservices.com>; Date: Wed, 19 Nov 2008 10:51:35 -0500; Well Ron, I think you found the correct tread for your situation. Let's assume the noise source is the utility hardware, it's common for noises to start with work being done on the utilities equipmen; /archives//html/RFI/2008-11/msg00034.html (7,862 bytes)
79. Re: [RFI] [Fwd: Noise Follow up] (score: 1): Author: "Michael Martin" <mike@rfiservices.com>; Date: Tue, 25 Nov 2008 21:24:19 -0500; Wow Mike let's be glad Morse didn't give up. Send me a wave file of your noise using am as broad as possible, no filters and use a frequency with no modulation from anything other than the noise. The; /archives//html/RFI/2008-11/msg00050.html (16,147 bytes)
80. Re: [RFI] ethernet EMI revisited - questions for the pros (score: 1): Author: "Michael Martin" <mike@rfiservices.com>; Date: Wed, 26 Nov 2008 06:07:14 -0500; Without too many details, I once saw a couple tech pondering over what to do about a broken fiber and no splices. I cut the fiber connected them together using a butt splice, really, and they were ba; /archives//html/RFI/2008-11/msg00052.html (10,600 bytes)

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