- 81. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Tue, 22 Apr 2014 00:21:26 -0800
- ADSL - ADSL2 - ADSL2+ - VDSL - VDSL2 is just a development chain for packet over copper pair last mile. The later versions generally do more with less _and_ use a wider bandwidth allowing for higher
- /archives//html/RFI/2014-04/msg00157.html (11,568 bytes)
- 82. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Tue, 22 Apr 2014 00:28:17 -0800
- I am still waiting on getting the house connection refit for dual pair VDSL2 but I have packed the spec-an and a few radios to work. ADSL/ADSL2, there are generally alot more issues with RF getting i
- /archives//html/RFI/2014-04/msg00158.html (11,415 bytes)
- 83. Re: [RFI] clamp on ferrites at Mouser (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Wed, 18 Jun 2014 01:43:43 -0800
- First off, you need to check the specs on the cable. LMR is great stuff, 100% of the coax here is LMR but you need to read the data sheet. LMR195 and LMR200 are .195 nominal cables (high grade RG58 s
- /archives//html/RFI/2014-06/msg00108.html (12,960 bytes)
- 84. Re: [RFI] Elimination of Treadmill RFI on 160 meters (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Fri, 09 Jan 2015 20:04:27 -0900
- Looking at the picture I am a bit concerned about a potentially serious safety issue. Brick filters like the Delta shown have a pair of line terminals (does not matter which is hot and which is neutr
- /archives//html/RFI/2015-01/msg00029.html (9,090 bytes)
- 85. Re: [RFI] Placement of Chokes (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Sun, 08 Mar 2015 15:50:01 -0800
- Assuming the twin-lead feeds are coax at the bulkhead and convert closer to the antenna I would start with a high value choke set (per Jims guide) at _BOTH_ ends of the antenna coax. In the tranceive
- /archives//html/RFI/2015-03/msg00007.html (10,056 bytes)
- 86. Re: [RFI] Chasing RFI (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Sun, 18 Oct 2015 14:11:36 -0800
- I have a SDR-14 and rigged a "portable" setup (flat plate with a gel-cell and places to velcro the SDR and laptop) for exactly this. Don't exclude wider spaced though, switchers and similare are some
- /archives//html/RFI/2015-10/msg00042.html (8,693 bytes)
- 87. Re: [RFI] New Kenmore Elite 72483 is RF-Quiet (score: 1)
- Author: "Christopher E. Brown" <cbrown@woods.net>
- Date: Mon, 7 Dec 2015 12:03:10 -0900
- On that note... After figyhting RFI on multiple washer/dryer sets (adding filters, re-routing VFD cables, etc) I was finally able to find what I was looking for all along. SpeedQueen washer/dryer set
- /archives//html/RFI/2015-12/msg00057.html (8,735 bytes)
- 88. Re: [RFI] Chasing RFI on 6M (score: 1)
- Author: "Christopher E. Brown" <cbrown@woods.net>
- Date: Mon, 21 Dec 2015 14:07:26 -0900
- I have a pair of Arrow Antenna fox hunt loops (the larger "VHF" (1 - 600Mhz) ones) along with their step attenuator. Have used 160 - 2 meters, switch to one of their short 70cm beams for 70cm. ______
- /archives//html/RFI/2015-12/msg00081.html (9,033 bytes)
- 89. Re: [RFI] Tracing wires. (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Wed, 20 Jan 2016 03:01:32 -0900
- It would be a /classic/ for an after the fact install of a temp controlled attic fan to be tapped into the nearest circuit, often the light fixture feed of a nearby room. ____________________________
- /archives//html/RFI/2016-01/msg00038.html (11,025 bytes)
- 90. Re: [RFI] Every 60 KHz (score: 1)
- Author: "Christopher E. Brown" <cbrown@woods.net>
- Date: Wed, 9 Mar 2016 16:20:25 -0900
- I would agree, don't discount SMPS or similar just because of little/no drift. While a cheap wall-wart is almost certain to drift, something like a $300 high efficiency battery charger or the like mi
- /archives//html/RFI/2016-03/msg00012.html (7,085 bytes)
- 91. Re: [RFI] Quiet Power Supply? (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Wed, 3 Aug 2016 15:01:55 -0800
- Not the original responder but am another IOTA user. It looks like they have reworked their site and material since I last visited, more shiny, less technical. In the past there was much more detaile
- /archives//html/RFI/2016-08/msg00009.html (16,816 bytes)
- 92. Re: [RFI] Solar Panel RFI (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Sat, 13 Aug 2016 06:20:33 -0800
- Have they actually provided you with a full datasheet including lifespan study data or at least projections? Personally I refuse to purchase any reserve power battery without a full datasheet includi
- /archives//html/RFI/2016-08/msg00099.html (11,985 bytes)
- 93. Re: [RFI] Station ground - more (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Wed, 28 Sep 2016 09:44:46 -0800
- NOT an AHJ or electrical worker, so do you own research... They are confusing allowed secondary grounds with what _must_ be done for the primary wiring. They used to allow a separately derived "groun
- /archives//html/RFI/2016-09/msg00097.html (11,226 bytes)
- 94. Re: [RFI] led bulb test (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Thu, 10 Nov 2016 11:25:19 -0900
- For my bulb testing I do 2 things. 1) There is a particular second floor light where the run to the light runs ~ 25ft horizontal parallel to the upper segment of my HF antenna at a distance of ~ 35ft
- /archives//html/RFI/2016-11/msg00024.html (11,052 bytes)
- 95. Re: [RFI] Ferrite prices (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Mon, 5 Dec 2016 13:17:29 -0900
- I picked up another 100 2631803802 2.4 toroid, mix 31 in October from them, $3.70 each as well as 100 2631102002 for $1.06 each _______________________________________________ RFI mailing list RFI@co
- /archives//html/RFI/2016-12/msg00019.html (8,059 bytes)
- 96. Re: [RFI] Re-wiring station (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Sat, 31 Dec 2016 02:21:08 -0900
- There were a number of specs, but for practical purposes guidelines/examples. The actual CAT5 specs were almost entirely performance driven. Std practice to meet the CAT5 performance spec or 155+ACR
- /archives//html/RFI/2016-12/msg00108.html (11,569 bytes)
- 97. Re: [RFI] More on 160 M RFI - significance of hum bands (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Wed, 29 Mar 2017 20:02:00 -0800
- Assuming you get that pattern repeating 22khz, my guess would be a switch mode PS or similar operating at a switching freq of ~ 22Khz connected to a harmonics rich AC line, possibly with little to no
- /archives//html/RFI/2017-03/msg00101.html (9,644 bytes)
- 98. Re: [RFI] UV Lights Noisy? (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Sat, 15 Apr 2017 17:55:47 -0800
- Same as any Flourescent, primary noise is the fixture/balast, built-in for a CFL, part of the fixture for a bulb like that. On a side note, since you linked to a raw bulb, not a special germicidal fi
- /archives//html/RFI/2017-04/msg00015.html (7,961 bytes)
- 99. Re: [RFI] RFI & Alternator Replacement (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Fri, 22 Sep 2017 23:17:09 -0800
- An old school externally regulated alternator with a _mechanical_ regulator is very, very noise. This is because there is a electromechanical "vibrator" pulsing the field coils. If you have an extern
- /archives//html/RFI/2017-09/msg00021.html (10,963 bytes)
- 100. Re: [RFI] New Noise - 160 Meters (score: 1)
- Author: Christopher Brown <cbrown@woods.net>
- Date: Fri, 20 Oct 2017 13:02:49 -0800
- DSL leakage would tend to be broader band then that. Looks/sounds more like switcher noise to be (A bad one). If there is a relation to the neighbors DSL work I expect it is more likely a new modem a
- /archives//html/RFI/2017-10/msg00019.html (8,572 bytes)
This search system is powered by
Namazu