Search String: Display: Description: Sort:

Results:

References: [ +from:jim@luxfamily.com: 308 ]

Total 308 documents matching your query.

261. Re: [TowerTalk] Force 12 C31XR Modeling (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Wed, 22 Feb 2023 11:46:45 -0800
On 2/22/23 9:32 AM, David Needham wrote: Anyone's guess on the transmission line impedance as described? I've found calculators for 2 conductors in free space, but I'm scratching my head on what the
/archives//html/Towertalk/2023-02/msg00123.html (8,567 bytes)

262. [TowerTalk] Zo of romex (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Wed, 22 Feb 2023 14:50:56 -0800
If you're really curious about the Zo of a transmission line, you can measure it with almost any antenna impedance instrument: At one end, put a resistive load you expect will be a mismatch, say ZL =
/archives//html/Towertalk/2023-02/msg00125.html (9,734 bytes)

263. Re: [TowerTalk] AFCI RFI? (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 16 Mar 2023 12:07:24 -0700
Know that code requires that only breakers of the same manufacturer as the panel be installed. Gary k4fmx Gary Schafer 715-589-2277 I think the code requirement is that "listed compatible breakers" b
/archives//html/Towertalk/2023-03/msg00023.html (8,844 bytes)

264. Re: [TowerTalk] Arcfault Breakers (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 16 Mar 2023 15:56:56 -0700
I didn't see it, but it's pretty famous - MGM Grand fire. Hand raised, I have seen several and I am not even paying that much attention. I had an arc fault problem in my own house that resulted in a
/archives//html/Towertalk/2023-03/msg00030.html (8,444 bytes)

265. Re: [TowerTalk] P3020-V1-CW360 - Hall sensor (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sun, 19 Mar 2023 13:47:27 -0700
Does anyone know/use any of these 2x type of Hall sensors? P3020-V1-CW360 P3022-V1-CW360 https://ha3ln.hu/?p=2801 (pics and short video clips about the problem) Traditional pots only swing 315-320 de
/archives//html/Towertalk/2023-03/msg00048.html (9,973 bytes)

266. Re: [TowerTalk] TowerTalk Digest, Vol 243, Issue 20 (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Tue, 28 Mar 2023 19:55:45 -0700
To: towertalk@contesting.com When replying, please edit your Subject line so it is more specific than "Re: Contents of TowerTalk digest..." Today's Topics: 1. OT Test Equipment (Wilson Lamb) 2. Re:
/archives//html/Towertalk/2023-03/msg00063.html (12,157 bytes)

267. Re: [TowerTalk] Source for Beverage Antenna Terminating Resistors (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sun, 16 Apr 2023 11:54:09 -0700
On 4/16/23 11:47 AM, RVZ via TowerTalk wrote: Wondering if anyone has found a beefy 400 to 500 ohm Beverage resistor that can handle some nearby lighting strikes?  Or at least one that can hold up a
/archives//html/Towertalk/2023-04/msg00025.html (7,834 bytes)

268. Re: [TowerTalk] Large solar farm and RFI (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sat, 22 Apr 2023 16:05:25 -0700
I'm sure they're allowed to radiate RF, just like any other electronic device.  The real question is "at what level can they radiate".  They'd be an unintended radiator - just like a motor controller
/archives//html/Towertalk/2023-04/msg00069.html (11,522 bytes)

269. [TowerTalk] Telrex 15M317 (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Tue, 2 May 2023 14:21:10 -0700
A friend (Tom, NG3Q) asks where he can get assembly instructions for the Telrex 15M317 antenna (which he's rebuilding).  And secondarily, given that the design is somewhat older, he's wondering wheth
/archives//html/Towertalk/2023-05/msg00007.html (6,589 bytes)

270. Re: [TowerTalk] Words. (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Mon, 29 May 2023 16:51:01 -0700
On 5/29/23 3:25 PM, Jim Brown wrote: On 5/29/2023 1:20 PM, Pete Smith N4ZR wrote: Frankly, I don't think there's any need - the author of the Wikipedia article clearly was European (probably British)
/archives//html/Towertalk/2023-05/msg00055.html (9,445 bytes)

271. Re: [TowerTalk] Words. (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Tue, 30 May 2023 06:23:37 -0700
And then, we have other usages of the word tower - The Campanile at UC Berkeley is a tower. And the FCC calls them "Antenna Structures"  in 47 CFR 19 Although they do use the term tower a lot (radiat
/archives//html/Towertalk/2023-05/msg00059.html (9,877 bytes)

272. Re: [TowerTalk] notice from owner (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 8 Jun 2023 06:29:44 -0700
On 6/8/23 5:04 AM, Dave Sublette wrote: I got an email, allegedly from this list owner saying I had too many bounces and to reconfirm my membership or I would be dropped. It had links enclosed that a
/archives//html/Towertalk/2023-06/msg00048.html (7,538 bytes)

273. Re: [TowerTalk] Needed: M2 Aluminum Tubing (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sat, 17 Jun 2023 12:45:49 -0700
1 each: 1 1/4" x .058 x  60" swagged at one end 2 each: 3/4" x .049 x 60" sagged at one end Thanks Rich - N5ZC I would think M2 would be happy to supply it - their entire factory is full of machines
/archives//html/Towertalk/2023-06/msg00090.html (7,551 bytes)

274. [TowerTalk] heavy duty rotators (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sat, 22 Jul 2023 10:08:38 -0700
I wonder if there might be a case for a major design approach change for rotators. As noted in the recent thread, prop pitch rotators are getting rarer. A similar phenomenon occurred with horse hot w
/archives//html/Towertalk/2023-07/msg00021.html (8,713 bytes)

275. Re: [TowerTalk] heavy duty rotators (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Sat, 22 Jul 2023 15:13:02 -0700
I have an HDX-5106 tower where the top section is only 15 inches wide.  Only the small prop pitch, and the Orion rotator, and the upcoming DXE rotator, will fit into my tower, while having even a pr
/archives//html/Towertalk/2023-07/msg00026.html (12,208 bytes)

276. Re: [TowerTalk] Connector needed (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 27 Jul 2023 07:29:34 -0700
How much current and voltage? XLR available in up to at least 5 conductors, locking, etc. But another is the AMP Circular Plastic Connector - get the bayonet shell (1/4 turn) https://www.newark.com/a
/archives//html/Towertalk/2023-07/msg00035.html (8,310 bytes)

277. Re: [TowerTalk] Connector needed (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 27 Jul 2023 07:30:59 -0700
What about a 4 pin modular plug/jack?  Like used for a phone handset. 4 pin DIN connector? just plug in. 9 pin sub-D, with locking bails (rather than jack screws) ___________________________________
/archives//html/Towertalk/2023-07/msg00036.html (7,828 bytes)

278. Re: [TowerTalk] Connector needed (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 27 Jul 2023 07:54:39 -0700
You can get panel mount sets of powerpoles too (or the bracketry to hold them in a panel).  I don't know if you can get a block or row of 4, but I've done pairs. PowerWerx is a decent source for this
/archives//html/Towertalk/2023-07/msg00038.html (7,959 bytes)

279. Re: [TowerTalk] Connector needed (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 27 Jul 2023 11:01:45 -0700
XLR is a TERRIBLE choice for use outdoors. Ask me how I know. 73, Jim K9YC I think the OP was looking for panel  mount. One advantage of XLR is that you can drive a grip truck or forklift over it wit
/archives//html/Towertalk/2023-07/msg00043.html (9,275 bytes)

280. Re: [TowerTalk] Connector needed (score: 1)
Author: "Lux, Jim" <jim@luxfamily.com>
Date: Thu, 27 Jul 2023 11:50:40 -0700
Sure -- I worked in pro audio, so am quite familiar with XLR. They come in configurations from three to six contacts, plus the shell. The only quality mfrs are Switchcraft (US) and Neutrik (EU). The
/archives//html/Towertalk/2023-07/msg00047.html (11,038 bytes)

Current List: 261 - 280
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16]
This search system is powered by Namazu