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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[CQ\-Contest\]\s+Coax\s+Stubs\s+for\s+SO2R\s*$/: 111 ]

Total 111 documents matching your query.

61. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Tue, 19 Jul 2016 09:24:05 -0700; Top quality RG11 works well for stubs. Top quality means a low resistance of both center conductor and shield, and good quality control. Belden 8213 is an example of a very good RG11. 73, Jim K9YC __; /archives//html/CQ-Contest/2016-07/msg00104.html (10,522 bytes)
62. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Jukka Klemola <jpklemola@gmail.com>; Date: Sat, 23 Jul 2016 13:08:04 +0300; Nobody has answered this Joe's question as the pileup roars on thing that are easier to comment than ideas about improving the station. Excellent ! I personally get more results from protection from; /archives//html/CQ-Contest/2016-07/msg00198.html (14,377 bytes)
63. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: "Jeff AC0C" <keepwalking188@ac0c.com>; Date: Sat, 23 Jul 2016 22:39:47 +0800; All of these topics are covered in W2VJN's excellent book "Managing Interstation Interference." Anyone wanting to get into So2r (or M/2-M/M) should start here. The gentlemen may have this book alread; /archives//html/CQ-Contest/2016-07/msg00201.html (16,241 bytes)
64. 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)
65. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Rudy Bakalov via CQ-Contest <cq-contest@contesting.com>; Date: Sun, 24 Jul 2016 13:07:05 -0400; Is there a reason you wouldn't want to place the stubs between the rig and the amp plus appropriate switching? I asked a friend of mine who makes amps to measure how much an amp contributes to second; /archives//html/CQ-Contest/2016-07/msg00231.html (11,247 bytes)
66. 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)
67. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Kenneth Wolff <ken@k1ea.com>; Date: Sun, 24 Jul 2016 14:16:00 -0400; I put exciter power band pass filters between the exciter and the amp. They also get rid of some broadband noise and the TX IF cross talk. When we first set up our M2 with IC781s they heard each othe; /archives//html/CQ-Contest/2016-07/msg00233.html (12,638 bytes)
68. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Rudy Bakalov via CQ-Contest <cq-contest@contesting.com>; Date: Sun, 24 Jul 2016 15:06:14 -0400; I use automatic BPFs between the rig and the amp as well. Cross-band noise seems to be well suppressed except for directly at the second and third harmonics, thus my quest to find a good solution. Ru; /archives//html/CQ-Contest/2016-07/msg00235.html (13,519 bytes)
69. 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)
70. 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)
71. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Matthew Stevens <matthew@mrstevens.net>; Date: Sun, 24 Jul 2016 23:36:17 -0400; Anyone know where I can pick up a copy? Can't seem to find it on amazon or eBay... - Matthew KK4FEM Sent from my iPhone _______________________________________________ CQ-Contest mailing list CQ-Cont; /archives//html/CQ-Contest/2016-07/msg00249.html (10,258 bytes)
72. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: K3RAG LB3RE Brobakken <post@lb3re.com>; Date: Mon, 25 Jul 2016 13:27:39 +0300; W2JVN book u can buy from Inrad filters -- Sent from myMail app for Android Stein-Roar Brobakken LB3RE Rag mandag, 25 juli 2016, 05:36a.m. +02:00 from Matthew Stevens matthew@mrstevens.net : ________; /archives//html/CQ-Contest/2016-07/msg00252.html (10,864 bytes)
73. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Rudy Bakalov via CQ-Contest <cq-contest@contesting.com>; Date: Mon, 25 Jul 2016 06:48:23 -0400; Jukka, It is the statement below that really puzzles me. All amp people I know, including those that manufacture commercial amps, categorically state that amps do not generate harmonics on their own.; /archives//html/CQ-Contest/2016-07/msg00254.html (10,571 bytes)
74. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: "Jeff AC0C" <keepwalking188@ac0c.com>; Date: Mon, 25 Jul 2016 19:58:22 +0800; Other sources: DXengineering K7LXC at www.championradio.com 73/jeff/ac0c www.ac0c.com alpha-charlie-zero-charlie --Original Message-- From: K3RAG LB3RE Brobakken Sent: Monday, July 25, 2016 6:27 PM T; /archives//html/CQ-Contest/2016-07/msg00256.html (11,568 bytes)
75. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Joe <nss@mwt.net>; Date: Mon, 25 Jul 2016 07:47:18 -0500; This also puzzles me. OK if an amp because of it's tuned matching circuits, block out of band energies. The why do we have these energies at all in the first place? Does not a Radio have the equivale; /archives//html/CQ-Contest/2016-07/msg00257.html (11,663 bytes)
76. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: "Jeff AC0C" <keepwalking188@ac0c.com>; Date: Mon, 25 Jul 2016 21:19:13 +0800; The only amplifier that does not generate harmonic content is the theoretically ideal types - nothing in the real world is perfect meaning they all generate their own levels of harmonic content. Now; /archives//html/CQ-Contest/2016-07/msg00259.html (11,998 bytes)
77. 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)
78. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Jukka Klemola <jpklemola@gmail.com>; Date: Mon, 25 Jul 2016 23:41:08 +0300; Hi, I try give simplified answers ... This should answer also Rudy's question. Amplifier circuits attenuate unwanted band energy. But to a limit. A Pi filter attenuates to some level, Pi-L attenuates; /archives//html/CQ-Contest/2016-07/msg00268.html (16,342 bytes)
79. Re: [CQ-Contest] Coax Stubs for SO2R (score: 1): Author: Rudy Bakalov via CQ-Contest <cq-contest@contesting.com>; Date: Mon, 25 Jul 2016 17:53:27 -0400; Jukka, Jim, and Steve, Thank you for taking the time to go into details. What's clear to me that the non liner AB type of amps contributes significantly to harmonics along with improper amp loading/t; /archives//html/CQ-Contest/2016-07/msg00269.html (19,739 bytes)
80. 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)

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