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1. [TowerTalk] 9913 Reliability (score: 1): Author: W9zr@aol.com (W9zr@aol.com); Date: Wed, 19 Dec 2001 06:51:26 EST; I am looking for some wisdom from the group regarding 9913 low loss coax. I have heard that this stuff has a tendency to accumulate water inside. I need some low loss feedline for 6 meters and was co; /archives//html/Towertalk/2001-12/msg00421.html (8,221 bytes)
2. [TowerTalk] 9913 Reliability (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 19 Dec 2001 07:08:32 -0500; Stay away from 9913 in Florida. I had a horrible experience with water vaporization several years ago. It is typical during a hot summer afternoon in Florida for the air in the 9913 to rise above the; /archives//html/Towertalk/2001-12/msg00422.html (10,163 bytes)
3. [TowerTalk] 9913 Reliability (score: 1): Author: pwomble1@tampabay.rr.com (Paul Womble); Date: Wed, 19 Dec 2001 09:39:06 -0500; While I agree that 9913 is probably not the best choice out there...I have to say that I had 2 runs of 9913 up for about 3 years. When I replaced it with hardline, I cut open the cable in a couple of; /archives//html/Towertalk/2001-12/msg00426.html (8,571 bytes)
4. [TowerTalk] 9913 Reliability (score: 1): Author: K7LXC@aol.com (K7LXC@aol.com); Date: Wed, 19 Dec 2001 10:04:26 EST; I would hazard a guess that most, if not all, 9913 moisture problems are due to poor weatherproofing. Check the TT archives at www.contesting.com for some good write-ups on the RIGHT way to do it. Ch; /archives//html/Towertalk/2001-12/msg00432.html (8,986 bytes)
5. [TowerTalk] 9913 Reliability (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 19 Dec 2001 11:38:02 -0500; You would NEVER get away with "sealing" 9913 in GA and keeping water out. It probably is fine in Arizona, however. The only way I can think of the be safe in a humid climate is to flood the first fe; /archives//html/Towertalk/2001-12/msg00438.html (9,753 bytes)
6. [TowerTalk] 9913 Reliability (score: 1): Author: steve@oakcom.com (Steve Maki); Date: Wed, 19 Dec 2001 19:26:18 -0500; While I think LMR-400 is a much better choice than 9913, water ingress is caused by improper weatherproofing, period. Proper weatherproofing WILL keep the water out - it'll also keep it IN of course.; /archives//html/Towertalk/2001-12/msg00440.html (9,984 bytes)
7. [TowerTalk] 9913 Reliability (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 19 Dec 2001 23:17:58 -0500; Think of all those people at broadcast and CATV installations who pressurize their air core cables, when all they need to do is seal them! 73, Tom W8JI W8JI@contesting.com AN Wireless Self Supportin; /archives//html/Towertalk/2001-12/msg00448.html (9,032 bytes)
8. [TowerTalk] 9913 Reliability (score: 1): Author: steve@oakcom.com (Steve Maki); Date: Thu, 20 Dec 2001 01:31:48 -0500; You think training installers to seal properly is easier than installing a simple pressurization system? Nope! Now consider that a pressurized system will continue to function even with bullet holes; /archives//html/Towertalk/2001-12/msg00450.html (9,798 bytes)
9. [TowerTalk] 9913 Reliability (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Thu, 20 Dec 2001 08:26:35 -0500; Tom, W8JI is right here. All air dielectric cables require pressurization. I cannot imagine any broadcast installation relying on the quality of the connector installation in order to keep moisture; /archives//html/Towertalk/2001-12/msg00452.html (10,766 bytes)
10. [TowerTalk] 9913 Reliability (score: 1): Author: steve@oakcom.com (Steve Maki); Date: Thu, 20 Dec 2001 09:18:36 -0500; Paul, no one suggested that the connector be relied on. A backup system must always be provided. That backup can be pressurization, when connectors with air inlets are provided; or commercial style w; /archives//html/Towertalk/2001-12/msg00453.html (10,200 bytes)
11. [TowerTalk] 9913 Reliability (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 20 Dec 2001 09:19:41 -0500; Anyone who has worked with CATV or BC air dielectric cables KNOWS how well the connectors are constructed. They have "O" ring seals, carefully mated and machined surfaces, and solid metal outer wall; /archives//html/Towertalk/2001-12/msg00454.html (11,180 bytes)
12. [TowerTalk] 9913 Reliability (score: 1): Author: n2tk@earthlink.net (N2TK); Date: Thu, 20 Dec 2001 10:27:29 -0500; Just had tilted over the tower to replace some antennas. Checked the coax for loss. Measured the power going into the coax and measured the power at the end of the coax at 28.0 MHz with a dummy load; /archives//html/Towertalk/2001-12/msg00455.html (10,163 bytes)
13. [TowerTalk] 9913 Reliability (score: 1): Author: n2tk@earthlink.net (N2TK); Date: Thu, 20 Dec 2001 10:48:48 -0500; If I look at a cross section of 9913 and RG213 I see the same thing - space. I grant you that the space is a lot bigger with the 9913. However, what is there in RG-213 to prevent the same moisture fr; /archives//html/Towertalk/2001-12/msg00456.html (11,802 bytes)
14. [TowerTalk] 9913 Reliability (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Thu, 20 Dec 2001 11:24:40 EST; Gospel #101? Why then difference in attenuation with higher frequencies for different dielectric? Are you saying that there are no dielectric losses in the coax? Gospel #102? Based on what? Modeling; /archives//html/Towertalk/2001-12/msg00457.html (9,331 bytes)
15. [TowerTalk] 9913 Reliability (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Thu, 20 Dec 2001 11:59:53 -0500; Yes, the water issue is the same concerning the point(s) of connectorization. It's what must take place after the cable becomes impregnated with water vapor through connector leakage: On RG-213 or L; /archives//html/Towertalk/2001-12/msg00458.html (9,850 bytes)
16. [TowerTalk] 9913 Reliability (score: 1): Author: steve@oakcom.com (Steve Maki); Date: Thu, 20 Dec 2001 15:53:55 -0500; <snip> Of course. I've never liked 9913 - am not defending it - never bought any - never will. I hope that's clear. However, whenever I see someone claim or imply that weatherproofing a splice is imp; /archives//html/Towertalk/2001-12/msg00465.html (10,525 bytes)
17. [TowerTalk] 9913 Reliability (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 20 Dec 2001 19:40:41 -0500; Hi Yuri, I hate to repeat stuff....so I won't. Read my post again. When did you have Rhombics? What type yagis did you have and to compare them with? How many days did you A-B test the antennas? What; /archives//html/Towertalk/2001-12/msg00470.html (9,044 bytes)
18. [TowerTalk] 9913 Reliability (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 20 Dec 2001 19:40:41 -0500; .......lack of a large volume of air that expands and contacts, causing the cable to breath a large volume of air from the ends as temperature changes. I'd wager there is more air volume in one foot; /archives//html/Towertalk/2001-12/msg00471.html (9,070 bytes)
19. [TowerTalk] 9913 Reliability (score: 1): Author: ve7hcb@rac.ca (Chris BONDE); Date: Thu, 20 Dec 2001 16:21:20 -0800; I hope that the instalers are not reading this!! Is that the competition? How do they get away with firing in an urban area. Here we have a "sanitary land fill site" within the city limits. A RCMP of; /archives//html/Towertalk/2001-12/msg00472.html (9,583 bytes)
20. [TowerTalk] 9913 Reliability (score: 1): Author: K3BU@aol.com (K3BU@aol.com); Date: Thu, 20 Dec 2001 22:41:10 EST; I read it again: <<To top this all off, there is virtually no difference in performance using a foam dielectric. The vast majority of loss is conductor resistance related, and has nothing to do with; /archives//html/Towertalk/2001-12/msg00475.html (10,994 bytes)

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