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References: [ +from:w2ttt@att.net: 92 ]

Total 92 documents matching your query.

41. Re: [RFI] ARLB025 FCC Seeks Comments on Technological Advisory Council Recommendations (score: 1)
Author: w2ttt <w2ttt@att.net>
Date: Wed, 06 Dec 2017 06:05:07 -0500
Roger,Thanks and your eloquent comments further the cause for positive and polite engagement. My town put in an Amateur Radio exemption requiring only a building permit for towers up to 35 ft without
/archives//html/RFI/2017-12/msg00033.html (18,364 bytes)

42. Re: [RFI] ARLB025 FCC Seeks Comments on Technological Advisory Council Recommendations (score: 1)
Author: w2ttt <w2ttt@att.net>
Date: Wed, 06 Dec 2017 06:13:18 -0500
Dave and Roger,Noise "In the public interest" is also balanced by the needs of the telecommunications carriers,  so if the power, or any utility causes problems,  then that will require some attentio
/archives//html/RFI/2017-12/msg00034.html (24,440 bytes)

43. Re: [RFI] RFI Digest, Vol 179, Issue 10 (score: 1)
Author: w2ttt@att.net
Date: Thu, 7 Dec 2017 08:16:05 +0000 (UTC)
Steve, Yes I do.  How may I help you?  Call me anytime. 73, Gordon Beattie, W2TTT 201.314.6964 Get Outlook for Android On Wed, Dec 6, 2017 at 12:10 PM -0500, "Steve Sacco NN4X" <nn4x@embarqmail.com>
/archives//html/RFI/2017-12/msg00036.html (8,340 bytes)

44. Re: [RFI] Spectrum Cable Boxes (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Fri, 11 Oct 2019 13:11:43 +0000 (UTC)
Jim, Try running the cable box from a battery and isolated from the power grid.  There may be a switched mode power supply on that device or another one on another customer that is creating and condu
/archives//html/RFI/2019-10/msg00008.html (8,418 bytes)

45. Re: [RFI] Spectrum Cable Boxes (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Sun, 27 Oct 2019 04:52:29 +0000 (UTC)
Anthony, Will the cable box run on a 12VDC battery? 73, Gordon Beattie, W2TTT 201.314.6964 Get Outlook for Android On Sat, Oct 26, 2019 at 6:14 PM -0400, "Anthony (N2KI)" <n2ki.ham@gmail.com> wrote:
/archives//html/RFI/2019-10/msg00029.html (10,981 bytes)

46. Re: [RFI] Spectrum Cable Boxes (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 12 Nov 2019 03:28:09 +0000 (UTC)
That's the ticket! Linear, aka iron power supplies are best. 73, Gordon, W2TTT 201.314.6964 Get Outlook for Android On Sun, Nov 10, 2019 at 10:27 PM -0500, "Tim Duffy" <k3lr@k3lr.com> wrote: I have S
/archives//html/RFI/2019-11/msg00030.html (15,179 bytes)

47. Re: [RFI] FCC Limits on Harmful Interference (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Sun, 29 Dec 2019 01:10:26 +0000 (UTC)
Dave, I would love a copy of what you found and am willing to share it. 73, Gordon Beattie, W2TTT 201.314.6964 W2TTT@ATT.NET Get Outlook for Android On Sat, Dec 28, 2019 at 8:04 PM -0500, "David Eckh
/archives//html/RFI/2019-12/msg00251.html (10,500 bytes)

48. Re: [RFI] ADSL2 RFI (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Fri, 21 Feb 2020 03:26:06 +0000 (UTC)
Hank, K7HP, The carriers are likely 4.3125 kHz center to center. Unless you can identify the three specific modems through their induvidual signatures, you may find that there are three leaky spots i
/archives//html/RFI/2020-02/msg00111.html (9,628 bytes)

49. Re: [RFI] Part 15 Rules Applicable to Solar Panel RFI (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Thu, 20 Aug 2020 02:24:49 +0000 (UTC)
Guys, Part 18 is useful, but keep in mind that conducted emissions that meet spec, but can lead to radiated emissions that are impairments that are not covered. Such is the mess of the rules. 73, Gor
/archives//html/RFI/2020-08/msg00016.html (11,856 bytes)

50. Re: [RFI] "Marker RFI" (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Sun, 23 Aug 2020 04:29:54 +0000 (UTC)
Chuck, If it goes to 8.5 MHz it could be VDSL. Check the raster between carriers.  If it is 4.3125 kHz, then it very well may be VDSL.  If you don't have that resolution on your receiver, measure to
/archives//html/RFI/2020-08/msg00024.html (8,574 bytes)

51. Re: [RFI] 2 MW Solar Farm (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 22 Sep 2020 03:10:17 +0000 (UTC)
Chuck, A few years back, the solar farms placed in schools, colleges and businesses had MASSIVE failures when hit with the snow load here in New Jersey.  They all got rebuilf, but all required lots o
/archives//html/RFI/2020-09/msg00086.html (10,430 bytes)

52. Re: [RFI] Tracking Electrical Interference in 1924 (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Wed, 27 Jan 2021 15:38:44 +0000
Paul, This is a cool article describing techniques that we still use. I was especially amused by the shaking of the utility pole to confirm the noise and the form factor of the ham shown in the photo
/archives//html/RFI/2021-01/msg00129.html (10,659 bytes)

53. Re: [RFI] Wireless Power Transfer with electric vehicles (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Sat, 10 Apr 2021 23:28:18 +0000
Ed, The bottom line question will be whether in a housing sibdivision with homes with two EV chargers each, can they peacefully coexist with low profile HF/VHF/UHF antennas in attics, around gutters
/archives//html/RFI/2021-04/msg00067.html (9,934 bytes)

54. Re: [RFI] Wireless Power Transfer with electric vehicles - politics is over (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 13 Apr 2021 03:29:23 +0000
Tim's right, but sadly I now need to figure out what to do with all the popcorn that I made! 73, Gordon Beattie, W2TTT 201.314.6964 Get on the air! _______________________________________________ RFI
/archives//html/RFI/2021-04/msg00130.html (8,160 bytes)

55. Re: [RFI] KC2IEBs RFI Journey (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Sat, 17 Apr 2021 01:57:05 +0000
Chris, Many utilities including power, telecom and cable use the Radar Engineers model 251 in the course of their work looking for these arcing noise sources. It would be interesting to compare their
/archives//html/RFI/2021-04/msg00153.html (11,717 bytes)

56. Re: [RFI] EMI Tape? (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Wed, 16 Jun 2021 07:40:01 +0000
Kurt, It is used in the cellular industry to cover bi-metal junctions that are sources of near field Passive Inter-Modulation (PIM). The tape blocks the RF sources from mixing at these points and pre
/archives//html/RFI/2021-06/msg00040.html (8,532 bytes)

57. Re: [RFI] Odd broadcast radio reception. (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Thu, 8 Jul 2021 02:50:06 +0000
Hi Folks! This is REALLY LONG... Sorry if it offends you. If you are not interested, please calmly apply your Delete Key without offense being taken here. :-) Well, I took a different route at a some
/archives//html/RFI/2021-07/msg00026.html (24,554 bytes)

58. Re: [RFI] DFing intermittent connection (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 17 Aug 2021 05:02:10 +0000
Tim, et al, So here's a question about bonding and grounding. Parts of the described system are done, and others need to get done - correctly, hence my questions. 10x16 ft ham shack structure with a
/archives//html/RFI/2021-08/msg00081.html (20,350 bytes)

59. Re: [RFI] DFing intermittent connection (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 17 Aug 2021 16:02:09 +0000
Tim, That's what I've seen as a best practice, so the direct clarification that you and others made is appreciated. 73, Gordon Beattie, W2TTT 201.314.6964 Get Outlook for Android<https://aka.ms/ghei3
/archives//html/RFI/2021-08/msg00085.html (21,682 bytes)

60. Re: [RFI] Working with Utilities (score: 1)
Author: James Gordon Beattie Jr <w2ttt@att.net>
Date: Tue, 14 Sep 2021 04:11:44 +0000
Hi Folks! Let me affirm Ed's comments about the process used to produce the current draft document. There was very engaged input from the utility community. I contributed a small annex despite highly
/archives//html/RFI/2021-09/msg00040.html (10,900 bytes)

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