Search String: Display: Description: Sort:

Results:

References: [ +from:qrv@kd4e.com: 267 ]

Total 267 documents matching your query.

181. Re: [RFI] Something is jamming 900mhz weather station (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 8 Oct 2017 23:47:29 -0400
Mine is the older Model #6357. I posted the diagnostic screens here: http://www.wxforum.net/index.php?topic=32953.msg334136#msg334136 Thanks - DavidC KD4E Try diagnostics on pages 39 and 40 of Vantag
/archives//html/RFI/2017-10/msg00013.html (9,363 bytes)

182. Re: [RFI] AT&T Begins Testing High-Speed Internet Over Power Lines (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 13 Dec 2017 23:47:48 -0500
I heard them talking about this on the radio today. They specifically referred to "clamping on the existing power lines". The whole idea is to leverage the existing infrastructure. Of course, when th
/archives//html/RFI/2017-12/msg00060.html (10,200 bytes)

183. Re: [RFI] [aprssig] It's Baaack BPL - Broadband Over Powerlines (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 14 Dec 2017 17:03:56 -0500
Let's grant that ... Can you also inquire about "The rest of the story"? What happens at the "last mile"? That is, what devices are used to convert the 60GHz backbone to something useful to users, an
/archives//html/RFI/2017-12/msg00066.html (8,557 bytes)

184. Re: [RFI] Emergency Radio and Earbuds 021718 8:44a.m. (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 17 Feb 2018 11:35:11 -0500
I'm guessing these are shipping specs: Weight 0.73 lbs Dimensions 7 x 5 x 7 in What are the specs of the actual device, please? Thanks, DavidC KD4E This little package could be useful for looking an
/archives//html/RFI/2018-02/msg00058.html (10,395 bytes)

185. Re: [RFI] Emergency Radio and Earbuds 021718 Noon EST (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 17 Feb 2018 12:15:32 -0500
I was imprecise with my request. I was just looking for the actual dimensions of the radio, and perhaps the actual weight. The only pockets I have that will hold a 7x5x7 radio are in my 511 pants ...
/archives//html/RFI/2018-02/msg00060.html (10,981 bytes)

186. Re: [RFI] Emergency Radio and Earbuds Radio Size 021718 12:32pm EST (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 17 Feb 2018 12:34:51 -0500
Thanks! The Memorex MR4240 Size In Inchesis  1.75L x 0.75W x 3.25H  -- The PL660 size is  7.4 x 1.3 x 4.5 inches So go with the MR4240 David ..... Bill / WD8ARZ .... out for now ... I was just lookin
/archives//html/RFI/2018-02/msg00064.html (9,893 bytes)

187. Re: [RFI] Solar Panel Manufacture Schedules Fix For Solar Panel RFI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 16 May 2018 19:59:37 -0400
Magical-thinking social engineers never apply the test of the logical-extreme/never trouble themselves with unintended consequences ... Sigh. OTOH ... there may be a common noise signature that might
/archives//html/RFI/2018-05/msg00059.html (9,309 bytes)

188. [RFI] When you absolutely positively have to generate 1.5k of QRM (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 24 May 2018 15:01:26 -0400
Does the FCC have to look the other way because it's a kit without a power supply? Or do they just not care? https://www.rflinear-amplifiers.com/product-page/1500-watt-pep-ldmos-rf-amplifier Isn't th
/archives//html/RFI/2018-05/msg00073.html (7,067 bytes)

189. Re: [RFI] Leased Solar Panels: Operator Responsibility? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 27 Jun 2018 20:35:54 -0400
It's election/reelection season - an opportune moment to get your Congressman's attention. Contact his/her "Constituent Service" office/person and ask them to make an inquiry to the FCC, on your beha
/archives//html/RFI/2018-06/msg00073.html (12,974 bytes)

190. Re: [RFI] FCC Compliance and Enforcement (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 7 Jul 2018 18:33:32 -0400
I'm guessing that if you have that FCC letter in-hand you can go to your congressman's constituent service representative & ask that the congressman ask the FCC why they've failed to follow-up. Burea
/archives//html/RFI/2018-07/msg00044.html (8,342 bytes)

191. Re: [RFI] SO2R 2nd Harmonic Interference (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 29 Sep 2018 20:05:21 -0400
I've used an IOTA PS with IQ/4 battery manager across a large deep-cycle battery for years. Dead quiet, gear runs off clean battery power, and has power for a while when the grid goes down. Best of a
/archives//html/RFI/2018-09/msg00049.html (9,710 bytes)

192. [RFI] Triangulating with quad-copter/drones? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 11 Oct 2018 16:01:47 -0400
I had a wild thought ... I've seen quad-copters controlled via a program to fly in various patterns. What if they received a target signal and relayed, real-time, that signal back to the controller -
/archives//html/RFI/2018-10/msg00015.html (7,100 bytes)

193. Re: [RFI] Triangulating with quad-copter/drones? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 11 Oct 2018 21:36:03 -0400
Excellent question ... that never occurred to me. No idea. If they are noisy, can they be quieted? Or is there another method to run the little critters that is quieter? Thanks ... DavidC KD4E How mu
/archives//html/RFI/2018-10/msg00021.html (8,120 bytes)

194. Re: [RFI] USB rfi ; rig control--->solved....I think. (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 28 Nov 2018 19:34:29 -0500
Did you wrap multiple turns of the #22 around the insulated cable, or wrap it around the bared-shield, or otherwise attach it somehow? Then you drained the energy it tapped to ground? Just trying to
/archives//html/RFI/2018-11/msg00102.html (7,845 bytes)

195. [RFI] Ruckus Xclaim 48V 0.5A 24W PoE Injector (PoE Adapter) (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 12 Jan 2019 11:11:15 -0500
Interesting choice for a POE device name "Ruckus". https://www.bgmicro.com/PWR1504.aspx Has anyone checked this for RFI? POE is often noisy. Some interesting applications if not a RFI nuisance. _____
/archives//html/RFI/2019-01/msg00011.html (6,772 bytes)

196. [RFI] HF amplifier 100w NO Filters $75. (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 25 Jan 2019 15:38:05 -0500
Here's some more excitement to add to the existing harmonics and splatter on HF ... https://www.aliexpress.com/item/MINIPA-Assembled-100W-SSB-linear-HF-Power-Amplifier-with-heatsink-For-YAESU-FT-817-
/archives//html/RFI/2019-01/msg00039.html (7,326 bytes)

197. Re: [RFI] HF amplifier 100w NO Filters $75. (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 25 Jan 2019 18:41:14 -0500
Did the Chinese buy the rights ... or just steal the data & make a knock-off? Where did they get the Motorola semiconductor?I thought they sold the semi business for Freescale years ago? Mike N2MS He
/archives//html/RFI/2019-01/msg00042.html (8,252 bytes)

198. [RFI] Any experience with 125v & 5v duplex receptacles? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 17 Jul 2019 22:18:48 -0400
https://www.walmart.com/ip/10-PACK-UL-Listed-High-Speed-USB-Charger-and-Duplex-Receptacle-15-Amp-3-1A-Charging-Capability-Tamper-Resistant-Outlet-Wall-plate-Included/333888094 Thanks! davidc kd4e ___
/archives//html/RFI/2019-07/msg00049.html (7,556 bytes)

199. Re: [RFI] Any experience with 125v & 5v duplex receptacles? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 17 Jul 2019 23:21:01 -0400
One with a house-wiring ready-antenna system attached ... but I'm hoping they've addressed that. I know it's very likely that I'll be disappointed. FYI: I've been using a Selectec K50W-5USB+C charger
/archives//html/RFI/2019-07/msg00051.html (9,013 bytes)

200. Re: [RFI] Considering a solar panel (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 15 Aug 2019 17:25:19 -0400
Morningstar used to be the Ham-recommended solar controller. Do they no longer deserve that trust? KD4E YES, and some installation advice. First, panels are not noisy, but charge controllers are noto
/archives//html/RFI/2019-08/msg00022.html (8,012 bytes)


This search system is powered by Namazu