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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Filters\s*$/: 18 ]

Total 18 documents matching your query.

1. [TowerTalk] FIlters (score: 1): Author: KB9RPM@centuryinter.net (John Kjos); Date: Tue, 27 Jan 1998 12:17:09 -0800; This is somewhat related to the reflector.The 5BA antenna that I am putting up has three feedlines to it.I want to be able to utilize it fully so I am planning on using two combination Bandpass filte; /archives//html/Towertalk/1998-01/msg00429.html (7,938 bytes)
2. [TowerTalk] FIlters (score: 1): Author: w4an@contesting.com (Bill Fisher - W4AN); Date: Tue, 27 Jan 1998 14:55:23 -0500 (EST); Hi John. I have the Dunestar filters and they work very well as I am sure do the ICE. Both companies are FB in my experience. Especially lately. However, I rarely find the need for my Dunestar filter; /archives//html/Towertalk/1998-01/msg00430.html (8,764 bytes)
3. [TowerTalk] FIlters (score: 1): Author: harpole@pegasus.cc.ucf.edu (Charles H. Harpole); Date: Tue, 27 Jan 1998 16:01:59 -0500 (EST); Can I trust the front end of a $4,000 rig to a stub "filter" ??? K4VUD -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towert; /archives//html/Towertalk/1998-01/msg00431.html (8,062 bytes)
4. [TowerTalk] FIlters (score: 1): Author: gdaught6@leland.Stanford.EDU (George T. Daughters); Date: Tue, 27 Jan 1998 14:31:00 +0008; hi charlie, you wrote.... sure. a quarter wavelength line, open at the far end, is a DEAD SHORT at this end. dead short = no voltage developed. none. now, make *sure* it's a quarter wave long! 73, Ge; /archives//html/Towertalk/1998-01/msg00432.html (7,942 bytes)
5. [TowerTalk] FIlters (score: 1): Author: K7LXC@aol.com (K7LXC); Date: Tue, 27 Jan 1998 18:00:37 EST; A splendid use for an antenna analyzer! 73, Steve K7LXC -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@con; /archives//html/Towertalk/1998-01/msg00433.html (8,112 bytes)
6. [TowerTalk] FIlters (score: 1): Author: aa0cy@robertwanderer.gardnerville.nv.us (ROBERT WANDERER); Date: Tue, 27 Jan 1998 14:36:24 -0800; Yes. 73, Bob AA0CY Can I trust the front end of a $4,000 rig to a stub "filter" ??? K4VUD -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrati; /archives//html/Towertalk/1998-01/msg00434.html (8,731 bytes)
7. [TowerTalk] FIlters (score: 1): Author: gehring@alaska.net (Steve Gehring / KL7DC); Date: Tue, 27 Jan 1998 17:23:17 -0800; writes: Hi, The use of a spectrum analyzer is the best way. But, you could also use an Autek RF-1 or similar MFJ product to tune a stub. Or, try a signal generator tuned to the offending freq (band); /archives//html/Towertalk/1998-01/msg00438.html (8,622 bytes)
8. [TowerTalk] FIlters (score: 1): Author: no6x@inreach.com (Mike); Date: Wed, 28 Jan 1998 02:57:59 +0000; I am curious to know which is better a "Quarter wave open" or a "Half wave shorted" As both have the same effect, is one better than the other? I realize that the "Quarter wave open is easier to acc; /archives//html/Towertalk/1998-01/msg00440.html (8,280 bytes)
9. [TowerTalk] FIlters (score: 1): Author: TexasRF@aol.com (Texas RF); Date: Wed, 28 Jan 1998 09:02:34 EST; An excellent but short article on the subject of double 1/8 wave coax filters appears in the Jan/Feb 1998 NCJ magazine. The parallel combination of one open and one shorted 45 degree stub basically f; /archives//html/Towertalk/1998-01/msg00449.html (8,426 bytes)
10. [TowerTalk] FIlters (score: 1): Author: harpole@pegasus.cc.ucf.edu (Charles H. Harpole); Date: Wed, 28 Jan 1998 09:45:30 -0500 (EST); Ok, but what happens when the operating freq. deviates a little or a lot from the stub design freq.? K4VUD -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting; /archives//html/Towertalk/1998-01/msg00452.html (8,589 bytes)
11. [TowerTalk] FIlters (score: 1): Author: w4an@contesting.com (Bill Fisher - W4AN); Date: Wed, 28 Jan 1998 09:59:05 -0500 (EST); You have obviously never swept a stub with a SWR analyzer. The Q is not very high. Low Q is actually a problem. Some guys make these stubs out of CATV hardline to increase the Q. I am using some netw; /archives//html/Towertalk/1998-01/msg00455.html (8,745 bytes)
12. [TowerTalk] FIlters (score: 1): Author: w4an@contesting.com (Bill Fisher - W4AN); Date: Wed, 28 Jan 1998 10:28:22 -0500 (EST); Just 50 ohm coax they use or used to use for computer networks. Really high speed networks with long runs of cable. Not sure who cares. It was free and it is low loss. You need to read the towertalk; /archives//html/Towertalk/1998-01/msg00459.html (8,869 bytes)
13. [TowerTalk] FIlters (score: 1): Author: k1ttt@berkshire.net (David Robbins); Date: Thu, 29 Jan 1998 00:32:01 +0000; check out my analysis on quarter wave shorted stubs at: http://www.berkshire.net/~robbins/technote/techref.html#filters this location also has some other references and previous messages on stubs. --; /archives//html/Towertalk/1998-01/msg00473.html (9,695 bytes)
14. [TowerTalk] FIlters (score: 1): Author: no6x@inreach.com (Mike); Date: Thu, 29 Jan 1998 04:29:03 +0000; Wait a MINUTE!!!!! Now I am lost...I thought the formula was Quarter wave open, or HALF wave shorted!!! Did I forget something, or is there a new theory to this that I missed!!! Dumb Kid in CA Mike..; /archives//html/Towertalk/1998-01/msg00478.html (8,556 bytes)
15. [TowerTalk] FIlters (score: 1): Author: k1ttt@berkshire.net (David Robbins); Date: Fri, 30 Jan 1998 00:17:55 +0000; it depends on your definitions. my stubs are 1/4 wave shorted at the frequency i want to pass. at the second harmonic that i want to get rid of they are 1/2 wave shorted. -- David Robbins K1TTT (ex K; /archives//html/Towertalk/1998-01/msg00489.html (9,561 bytes)
16. [TowerTalk] FIlters (score: 1): Author: no6x@inreach.com (Mike); Date: Sat, 31 Jan 1998 17:05:01 +0000; After visiting K1TTT's website and reading all of the info about this I think I finally have a firm grasp of it. I also am upset with myself as some of this info was on one of the tests we all had to; /archives//html/Towertalk/1998-01/msg00520.html (8,766 bytes)
17. [TowerTalk] filters (score: 1): Author: "David J Windisch" <davidw@copper.net>; Date: Tue, 6 Jul 2004 06:37:48 -0400; April 1, 200X What we need is that peculiar outsidethebox e-h/fractal/cf thinking applied to filters. Imagine the reduction in parts-count, complexity, what ever, and the orders-of-magnitude improvem; /archives//html/Towertalk/2004-07/msg00179.html (6,627 bytes)
18. Re: [TowerTalk] Filters (score: 1): Author: "k3hx@juno.com" <k3hx@juno.com>; Date: Thu, 11 Aug 2011 14:33:14 GMT; Send TowerTalk mailing list submissions to towertalk@contesting.com To subscribe or unsubscribe via the World Wide Web, visit http://lists.contesting.com/mailman/listinfo/towertalk or, via email, sen; /archives//html/Towertalk/2011-08/msg00091.html (22,453 bytes)

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