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Total 14 documents matching your query.

1. Open in coax (score: 1): Author: shapird@meol.mass.edu (Dennis Shapiro); Date: Thu, 10 Oct 1996 22:03:54 -0400 (EDT); I have an open circuit in my coax feedline to the tribander--about 150 feet long. Looking for ways to tell where the open is. Coax is about 6 years old and looks and feels ok. Dennis, W1UF -- FAQ on; /archives//html/Towertalk/1996-10/msg00126.html (7,574 bytes)
2. Open in coax (score: 1): Author: wrt@eskimo.com (Bill Turner); Date: Fri, 11 Oct 1996 02:49:32 GMT; feet=20 years=20 -- Measure the capacitance at the input to the coax (make sure accessories = like SWR meters are disconnected) and then divide that figure by the = capacitance per foot of the coax.; /archives//html/Towertalk/1996-10/msg00127.html (8,105 bytes)
3. Open in coax (score: 1): Author: wa2moe@doitnow.com (wa2moe@doitnow.com); Date: Thu, 10 Oct 1996 21:06:04 -0700 (MST); bell. it should identify the break within inches. on the other hand, were it me, I'd replace the entire run assuming, of course, it is open, 73 Stu Greene WA2MOE 7537 North 28th Avenue Phoenix, Ariz; /archives//html/Towertalk/1996-10/msg00128.html (8,270 bytes)
4. Open in Coax (score: 1): Author: kballow1@tue.e-mail.com (kballow1@tue.e-mail.com); Date: Fri, 11 Oct 1996 09:14:00 EDT; Dennis, You can build a Time Domain Reflectometer that will work reasonably well if you also have access to an O-scope. I do not have the information with me here at work, but perhaps someone on the; /archives//html/Towertalk/1996-10/msg00129.html (9,945 bytes)
5. Open in Coax (score: 1): Author: k5na@bga.com (Richard L. King); Date: Fri, 11 Oct 1996 09:18:34 -0500; you at Coax Many Oscilloscopes have a gating pulse available that you can use in lieu of building the squarewave generator. Look for a coax port on the side or back of the scope that is labeled as "; /archives//html/Towertalk/1996-10/msg00130.html (8,933 bytes)
6. Open in coax (score: 1): Author: rattmann@cts.com (rattmann); Date: Fri, 11 Oct 1996 10:18:54 -0700; Hi Dennis, If the actual problem is not due to a failure (open) at either one connector or the other, I will be extremely surprised. In 36 years of this stuff, I have sure never seen a piece of RG-8; /archives//html/Towertalk/1996-10/msg00131.html (8,898 bytes)
7. Open in coax (score: 1): Author: fisher@hp-and2.an.hp.com (Tony Brock-Fisher); Date: Fri, 11 Oct 1996 09:13:07 -0400; Use a TDR, time-domain reflectometer. There are very expensive, fancy ones, but you can build a simple one easily if you have a scope. This sends a pulse down the line which bounces off the open. Kno; /archives//html/Towertalk/1996-10/msg00132.html (8,220 bytes)
8. Open in coax (score: 1): Author: k1vr@juno.com (Fred Hopengarten); Date: Tue, 15 Oct 1996 01:37:38 EDT; K1VR: Curious. I discovered the same problem last winter here. When things got REALLY cold last February, my 40 meter beam stopped working. The problem turned out to be that an N connector splice in; /archives//html/Towertalk/1996-10/msg00168.html (9,467 bytes)
9. Open in coax (score: 1): Author: wa8msf@ix.netcom.com (Michael Valentine); Date: Tue, 15 Oct 1996 08:18:11 -0400; Hi Fred! N-connectors are famous for retracting the center pin from either temperature extremes or mechanical stresses on the cable. That is unless you use connectors with CAPTIVATED center pins! The; /archives//html/Towertalk/1996-10/msg00169.html (9,227 bytes)
10. Open in coax (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 15 Oct 1996 06:55:39 -0600; This problem is not limited to N-connectors, nor to RG-213. But the "old" style N-connectors are very susceptible to this problem in even short runs. The captivated contact N-connector--the UG-1185; /archives//html/Towertalk/1996-10/msg00170.html (11,255 bytes)
11. Open in coax (score: 1): Author: cbrudtk@uswest.com (Chuck Brudtkuhl); Date: 15 Oct 1996 09:18:48 -0600; Mail*Link(r) SMTP RE>>Open in coax Finally have to put my 2 cents worth here. One cause of center conductor pull-back or "creep" is being overlooked and is well-known in the tele-communications indus; /archives//html/Towertalk/1996-10/msg00173.html (8,388 bytes)
12. Open in coax (score: 1): Author: k0rc@pclink.com (Robert Chudek); Date: Tue, 15 Oct 1996 16:37:00 +0100; As a previous dealer for a broad range of connector mfgr's and types, I have experience with the problem you have described about the type N connector center pins decoupling. The problem is the expan; /archives//html/Towertalk/1996-10/msg00176.html (10,824 bytes)
13. Open in coax (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Tue, 15 Oct 1996 13:56:00 +0100; Two questions: Was the RG213 inner stretched before the connector was installed, or maybe was the outer compressed? Over time, it would remember its original configuration and the inner would pull ba; /archives//html/Towertalk/1996-10/msg00177.html (10,531 bytes)
14. Open in coax (score: 1): Author: seay@alaska.net (Del Seay); Date: Tue, 15 Oct 1996 09:49:41 -0700; Correct, Chuck - however, I think most of the center conductor retraction is caused when the insulation is removed from the center conductor. (On standard coax - not Heliax, etc.) The newer versions; /archives//html/Towertalk/1996-10/msg00180.html (9,222 bytes)

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