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Total 279 documents matching your query.

241. Re: [RFI] Kitchen remodeling appliances (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Wed, 16 Mar 2011 22:13:12 -0400
The top shelf of kitchen cabinets are usually dead space anyhow - why not bury one up in there somewhere? ;-) -- Thanks! & 73, KD4E David Colburn http://kd4e.com SE-GA Tailgate - April 9th, 2011 Have
/archives//html/RFI/2011-03/msg00058.html (8,069 bytes)

242. Re: [RFI] RFI from LED power supplies (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Thu, 17 Mar 2011 12:07:49 -0400
$24.71 each here: http://www.trcelectronics.com/Meanwell/lpc-35-1050.shtml Have you worked out a method to dim? I suppose you could switch in an extra led or two to dim the string and switch it/them
/archives//html/RFI/2011-03/msg00066.html (7,292 bytes)

243. [RFI] RFI Report Re: IOTA DLS-45 w/IQ4 Charger-PS (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 21 Mar 2011 20:13:54 -0400
RFI Report Re: IOTA DLS-45 w/IQ4 Charger-PS The unit arrived today and I made up a cable set and set it to work charging a 105 AH @ 20hr rated deep-cycle battery. I was hearing really strong radio fr
/archives//html/RFI/2011-03/msg00074.html (7,894 bytes)

244. Re: [RFI] More on LightSquared (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Thu, 24 Mar 2011 16:04:13 -0400
This has the smell of a smoke-filled Chicago room to it ... I still want to know how they get those massive land-based transmitters past the EPA ... sure seems like a *dangerous* level of RF at *near
/archives//html/RFI/2011-03/msg00085.html (8,048 bytes)

245. Re: [RFI] More on LightSquared (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Fri, 25 Mar 2011 14:00:29 -0400
I believe that their proposal uses a loophole in satellite regs. They are pretending to be a satellite service with groundbased "fills" but are really a ground-based service where the satellite is me
/archives//html/RFI/2011-03/msg00088.html (9,342 bytes)

246. [RFI] Which filter to use? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 04 Apr 2011 12:35:55 -0400
Has anyone swept these filters? I'm considering their use on the output of a broadband 1.5KW PEP/750W CW 160-6M solid state amp to knock-down harmonics. Drake TV-1000-LP 30MHz 1KW (17, 15, 12M) Nye V
/archives//html/RFI/2011-04/msg00000.html (6,735 bytes)

247. Re: [RFI] Which filter to use? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 04 Apr 2011 13:46:09 -0400
This is a commercial Harris amp, built for CH2, which is being converted to HF using transformers and splitter-combiners from Communications Concepts. The FCC requires filters as I seriously doubt it
/archives//html/RFI/2011-04/msg00002.html (9,182 bytes)

248. Re: [RFI] Which filter to use? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 04 Apr 2011 18:09:01 -0400
The plan is to either buy an existing assembled product, or scale-up a pre-engineered and tested design. I have never even considered trying to design my own. Using an existing pre-engineered low-pas
/archives//html/RFI/2011-04/msg00009.html (9,295 bytes)

249. [RFI] Passive Cellphone Repeater? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sat, 16 Apr 2011 17:54:51 -0400
It seemed to me that someone here will know about this ... We are in a steel building and have been using a Samsung Internet-GPS black box to generate a cellphone signal. However, whenever there is a
/archives//html/RFI/2011-04/msg00032.html (7,323 bytes)

250. Re: [RFI] Passive Cellphone Repeater? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sat, 16 Apr 2011 20:37:47 -0400
Like K8RI I can often connect if I am right at the window facing the direction of the tower, so the signal level to the outside of the house isn't bad. The Samsung generally gets the job done but it
/archives//html/RFI/2011-04/msg00036.html (10,402 bytes)

251. Re: [RFI] Passive Cellphone Repeater? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sun, 17 Apr 2011 14:06:10 -0400
$39.95 on sale at OfficeMax today. :-) Verizon. OK. Not a problem putting a beam outside and pointing it SE at the tower. More elements, at these frequencies there's not much weight or wind-resistan
/archives//html/RFI/2011-04/msg00039.html (9,378 bytes)

252. Re: [RFI] Passive Cellphone Repeater? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sun, 17 Apr 2011 18:44:08 -0400
$389. and it does not sound like a lot more coverage inside the house than a passive repeater. -- Thanks! & 73, KD4E David Colburn http://kd4e.com SE-GA Tailgate - April 9th, 2011 Have an http://ultr
/archives//html/RFI/2011-04/msg00042.html (10,863 bytes)

253. [RFI] Comparing Lightning Arrestors? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 16 May 2011 19:11:35 -0400
Has anyone compared lightning arrestors? With ICE out of the market for a while I am in need of a HF+6m device that is rated to full-legal and passes DC control signals/voltage (I have a Heath HD-148
/archives//html/RFI/2011-05/msg00059.html (7,359 bytes)

254. Re: [RFI] Comparing Lightning Arrestors? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Mon, 16 May 2011 21:09:23 -0400
We are in a steel home which shell is grounded and all of the antennas are fed across a 40' connex (steel shipping container) - so I am guessing that a semi-direct hit would breach the coax into the
/archives//html/RFI/2011-05/msg00063.html (9,466 bytes)

255. Re: [RFI] Comparing Lightning Arrestors? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Tue, 17 May 2011 11:53:34 -0400
I could put the blocking arrestor after the HD-1480 switch and ground it to the connex (steel shipping container) and then a non-blocking one at the entrance to the house - grounded to the whole-hous
/archives//html/RFI/2011-05/msg00069.html (9,659 bytes)

256. [RFI] Power Supply - Noise Frequency Adjust? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sat, 21 May 2011 11:20:23 -0400
Here's an interesting concept. Instead of eliminating the RFI they give you a control to move it off the desired frequency? There offer three models, the I, II, and III, this one is the latest, the I
/archives//html/RFI/2011-05/msg00075.html (7,297 bytes)

257. [RFI] Didn't mobile phones originate in Ham radio? (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Fri, 27 May 2011 19:41:41 -0400
This drifts a wee-bit OT but given the technical-bent of list members I thought it might appeal to others as it did to me ... At the end of this article a scientist makes the following claim: 'Do you
/archives//html/RFI/2011-05/msg00082.html (7,295 bytes)

258. Re: [RFI] 1.5-200MHz ARRESTOR 8kWPEP/4kWDC UHF CONNECTORS (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sat, 28 May 2011 12:32:14 -0400
With ICE out of the picture I am not sure where this leaves Hams for a high-power arrestor that will pass DC. FYI: -- No, it will not pass DC. Thank You! Sales Department @ R&L Electronics www.randl.
/archives//html/RFI/2011-05/msg00084.html (7,369 bytes)

259. Re: [RFI] 1.5-200MHz ARRESTOR 8kWPEP/4kWDC UHF CONNECTORS (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sun, 29 May 2011 12:33:27 -0400
Can you recommend a specific model, please? -- Thanks! & 73, KD4E David Colburn http://kd4e.com Have an http://ultrafidian.com day I don't google I SEARCH! STARTPAGE.com Shop Freedom-Friendly http://
/archives//html/RFI/2011-05/msg00093.html (8,878 bytes)

260. Re: [RFI] 1.5-200MHz ARRESTOR 8kWPEP/4kWDC UHF CONNECTORS (score: 1)
Author: "doc@kd4e.com" <doc@kd4e.com>
Date: Sun, 29 May 2011 15:31:41 -0400
Thanks! They are $14.99 each here: <http://www.launch3telecom.com/sale-transitrap.html> They are rated for 200W - and for another $15. or so I understand that Alpha Delta sells the 2KW gas tubes. (Si
/archives//html/RFI/2011-05/msg00095.html (8,450 bytes)

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