Search String: Display: Description: Sort:

Results:

References: [ +from:k9yc@audiosystemsgroup.com: 994 ]

Total 994 documents matching your query.

301. Re: [CQ-Contest] CQWW Madness (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sat, 23 Jul 2016 09:50:25 -0700
I do NOT believe that NA to NA QSOs is the key to making CQWW more competitive. What IS needed is a significant change to the scoring model. As long is the model is tied to multipliers, then a lot mo
/archives//html/CQ-Contest/2016-07/msg00209.html (15,398 bytes)

302. Re: [CQ-Contest] CQWW Madness (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sat, 23 Jul 2016 14:48:39 -0700
Hi Kelly, On Sat,7/23/2016 1:08 PM, Kelly Taylor wrote: Do you really think distance-based scoring will lead to a change in distribution of winning scores? Some, yes. More important, virtually all st
/archives//html/CQ-Contest/2016-07/msg00218.html (13,190 bytes)

303. Re: [CQ-Contest] CQWW madness (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sat, 23 Jul 2016 20:13:35 -0700
Actually, SS and NAQP are relatively competitive between different parts of NA. In SS, PVRC, SMC, and NCCC have each turned in wins in Large Club competitons, and another half dozen or so smaller clu
/archives//html/CQ-Contest/2016-07/msg00226.html (11,882 bytes)

304. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 24 Jul 2016 08:52:57 -0700
Yes and no. In that book, George has not considered the location of stubs for optimum performance, and when he did consider it in a piece in NCJ a couple of years ago, it was poorly done (that is, te
/archives//html/CQ-Contest/2016-07/msg00230.html (9,316 bytes)

305. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 24 Jul 2016 11:14:30 -0700
Sure. It doesn't suppress harmonics produced by the power amp if it's on the INPUT of the amp, and suppressing harmonics produced by the power amp is the reason to use harmonic stubs. 73, Jim K9YC __
/archives//html/CQ-Contest/2016-07/msg00232.html (9,557 bytes)

306. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 24 Jul 2016 16:34:37 -0700
I've received email from a friend who tells me that my comment with respect to W2VJN's work on stubs was somehow viewed as a personal attack. Nothing could be farther from the truth -- I have a great
/archives//html/CQ-Contest/2016-07/msg00240.html (9,709 bytes)

307. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Sun, 24 Jul 2016 21:51:55 -0700
https://www.inrad.net/product.php?productid=248&cat=148&page=1 73, Jim K9YC _______________________________________________ CQ-Contest mailing list CQ-Contest@contesting.com http://lists.contesting.
/archives//html/CQ-Contest/2016-07/msg00248.html (9,336 bytes)

308. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 25 Jul 2016 09:33:27 -0700
Hi Rudy, All those "amp people" are WRONG. I'm not "an amp person," but I am an EE. Another EE, N6BV, retired editor of the ARRL Antenna Book and other ARRL tech publications says that the second har
/archives//html/CQ-Contest/2016-07/msg00264.html (13,788 bytes)

309. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 25 Jul 2016 16:55:19 -0700
Yep, at its best, ham radio combines operating, technical knowledge, building things, and hanging out with your friends. 73, Jim K9YC _______________________________________________ CQ-Contest mailin
/archives//html/CQ-Contest/2016-07/msg00270.html (10,576 bytes)

310. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 10:40:38 -0700
Yes. That is, takes a lot of time. I spent about 6 hours on each set of double stubs -- one set to go on the 40M antenna, another for the 80M antenna for our CQP trailer. I did a very quick back of t
/archives//html/CQ-Contest/2016-07/msg00286.html (27,830 bytes)

311. Re: [CQ-Contest] Contest Log Submission Webpage Tips? (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 11:05:15 -0700
On Tue,7/26/2016 8:56 AM, Jeff Clarke wrote: I'm going to be taking over running a smaller contest soon and need some tips on how to incorporate log submissions on our webpage. I'm also wondering abo
/archives//html/CQ-Contest/2016-07/msg00287.html (8,161 bytes)

312. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 11:13:07 -0700
Or better yet what is proper amp loading/tuning. I posted a link to K6XX's slides for the talk he did to NCCC on the topic, http://k9yc.com/K6XXAmpTalk.pdf I also addressed it in http://k9yc.com/Cont
/archives//html/CQ-Contest/2016-07/msg00288.html (10,933 bytes)

313. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 11:24:41 -0700
On Tue,7/26/2016 7:37 AM, Jeff AC0C wrote: I built the stubs up on an as-needed basis with whatever I had laying about; there's no LMR400 around here. It's all RG-11 or 213. 213 has a bit better atte
/archives//html/CQ-Contest/2016-07/msg00291.html (12,135 bytes)

314. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 16:26:48 -0700
Been following this thread since it started (this time) several days ago. I have lots of interest in it as I have a multi multi station here in VA. I have built coaxial stubs in the past using my AIM
/archives//html/CQ-Contest/2016-07/msg00298.html (15,817 bytes)

315. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Tue, 26 Jul 2016 21:57:37 -0700
Jeff is exactly right about resistance, but a note of caution about cheap coax made for CATV. It tends to be made with a copper clad steel center and Al shield. That depends on skin effect, so RF res
/archives//html/CQ-Contest/2016-07/msg00308.html (11,986 bytes)

316. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Wed, 27 Jul 2016 16:57:43 -0700
Hi Rudy, I remember seeing this years ago when I read George's book, so I went back to look at it to respond to your question. I have the second edition, which shows this concept in a table on page 3
/archives//html/CQ-Contest/2016-07/msg00322.html (13,277 bytes)

317. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Wed, 27 Jul 2016 21:35:34 -0700
Thanks for taking the time to think about the question and even model it. Really appreciate it. You have a point that considering the extra time needed to make a second stub is independent of the len
/archives//html/CQ-Contest/2016-07/msg00325.html (12,931 bytes)

318. [CQ-Contest] FCC Notice of Proposed Rulemaking On Digital Mode Bandwidth (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Fri, 29 Jul 2016 11:03:01 -0700
http://transition.fcc.gov/Daily_Releases/Daily_Business/2016/db0728/FCC-16-96A1.pdf This could have serious negative impact on our CW bands if the new Rules are not carefully written. Imagine CW band
/archives//html/CQ-Contest/2016-07/msg00329.html (8,088 bytes)

319. Re: [CQ-Contest] FCC Notice of Proposed Rulemaking On Digital Mode Bandwidth (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Fri, 29 Jul 2016 16:23:05 -0700
Not quite. The Commission is asking several questions here about bandwidth limitations and sub-bands. Here's what a thoughtful NCCC member (and serious operator) wrote after a quick read. 73, Jim = =
/archives//html/CQ-Contest/2016-07/msg00335.html (10,351 bytes)

320. Re: [CQ-Contest] Dayton Hamvention (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Mon, 1 Aug 2016 20:12:39 -0700
I agree. I'm an EE grad of the Univ of Cincinnati, and lived there five years. While working at R L Drake as a co-op student, I lived in Dayton only a few months, but quickly retreated to Cincinnati.
/archives//html/CQ-Contest/2016-08/msg00015.html (8,744 bytes)


This search system is powered by Namazu