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References: [ +from:kurscj@oampc12.csg.mot.com: 22 ]

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1. [TowerTalk] Alliance Rotator (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Wed, 10 Dec 1997 12:21:35 -0600; According to "Norm's Rotor Service" web page http://www.tiac.net/users/shiacawn/rotors/ this rotor is rated at 10 sq.ft. wind load, the same as a Ham-M or Ham-2. It has no mention of braking capacity; /archives//html/Towertalk/1997-12/msg00201.html (8,128 bytes)
2. [TowerTalk] Re: Sloped Beverage Terminations (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 21 Oct 1997 09:48:10 -0500; Any (>200') length will work well, but multiples of 290' give the best Front-to-back. Also, longer lengths have a lower angle (but slightly less F/B than a shorter multiple of 290'). At least 1/2 wa; /archives//html/Towertalk/1997-10/msg00579.html (10,457 bytes)
3. [TowerTalk] Re: 4 square or yagi ?? (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Wed, 22 Oct 1997 12:37:48 -0500; Modeling with AO, a 2 el (fullsize elements) on a 40' boom at 100' has 4.5dB more gain than a "W1CF" 4 square. If you use linear loading, unless something is wrong, it won't have 4.5dB of loss. A 40; /archives//html/Towertalk/1997-10/msg00611.html (8,075 bytes)
4. [TowerTalk] Stacking Supplement (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 02 Sep 1997 09:16:43 -0500; The KS9K/W9JA 20M 4 stack of 5 el models at 15.5dBi free-space and 19.15dBi at 7 degrees over ground. Although this is not a single yagi, I thought I would throw this in for comparison. -- Chad Kurs; /archives//html/Towertalk/1997-09/msg00031.html (7,573 bytes)
5. [TowerTalk] AB-105/FRC (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Mon, 15 Sep 1997 10:06:15 -0500; AB-105 (Model 2400) weighs 112# per 10' section. Heavy duty AB-105 (Model 2400H) comes in at 141#/10'. -- Chad Kurszewski, WE9V e-mail: Chad_Kurszewski@csg.mot.com The Official "Sultans of Shwing" W; /archives//html/Towertalk/1997-09/msg00373.html (7,831 bytes)
6. [TowerTalk] TIC Ring intermittents (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Thu, 25 Sep 1997 08:31:10 -0500; Sorry I don't have any insight to your failure, but I do have a comment about the pot replacement. W9JA recently had to replace two of these pots due to lightning. Although I didn't the the tower wo; /archives//html/Towertalk/1997-09/msg00660.html (9,090 bytes)
7. [TowerTalk] Phillystran vs EHS Guywire (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Mon, 02 Jun 1997 16:20:55 -0500; He showed that the degredation was negligible or an acceptable comprimise. No insulators can turn this: Into $748.20 MUCH better! -- Chad Kurszewski, WE9V e-mail: Chad_Kurszewski@csg.mot.com The Off; /archives//html/Towertalk/1997-06/msg00069.html (8,868 bytes)
8. [TowerTalk] twr selection update (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 17 Jun 1997 12:58:45 -0500; (snip) Guyed Rohn 45, 70', 70MPH is only rated for 17.5 sq.ft. How does self-supporting Trylon do 45 sq.ft? (Ya gotta love Rohn's derating. Geez.) -- Chad Kurszewski, WE9V e-mail: Chad_Kurszewski@cs; /archives//html/Towertalk/1997-06/msg00561.html (8,297 bytes)
9. [TowerTalk] twr selection update (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 17 Jun 1997 15:50:30 -0500; No, 17.5 is including the 8.0 side mount. Rohn specifies 9.5 sq.ft. in the catalog. -- Chad Kurszewski, WE9V e-mail: Chad_Kurszewski@csg.mot.com The Official "Sultans of Shwing" Web Site: http://www; /archives//html/Towertalk/1997-06/msg00574.html (8,255 bytes)
10. [TowerTalk] twr selection update (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 17 Jun 1997 17:54:42 -0500; No, that isn't correct either. Yes, amateur yagis are round membered antennas but their wind loading is NOT given in projected areas. Rohn's General Note #2 states: (circled area) Allowable Proj. Ar; /archives//html/Towertalk/1997-06/msg00580.html (10,710 bytes)
11. [TowerTalk] Helicopters (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Mon, 30 Jun 1997 14:04:58 -0500; Sec. 91.119 Minimum safe altitudes: General. Except when necessary for takeoff or landing, no person may operate an aircraft below the following altitudes: (a) Anywhere. An altitude allowing, if a po; /archives//html/Towertalk/1997-06/msg01010.html (8,718 bytes)
12. [TowerTalk] anchor points (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Mon, 30 Jun 1997 17:07:42 -0500; Well, maybe it should be, but it isn't. Let's try pi*r^2*h (no 2* in there) Area of a circle is pi*r^2, times the height is volume. Nor with that math. :) p.s. a 1 foot diameter hole would need to b; /archives//html/Towertalk/1997-06/msg01019.html (8,661 bytes)
13. [TowerTalk] AB-105 Specs (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 08 Apr 1997 13:51:36 -0500; Unfortuantly, during Sunday's windstorm, a prominent midwestern contester lost a tower due to a guywire slipping through a professionally installed nicopress fitting. I am curious to calculate the lo; /archives//html/Towertalk/1997-04/msg00227.html (7,357 bytes)
14. [TowerTalk] Testing guy terminations (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Wed, 09 Apr 1997 08:27:41 -0500; Reposting a message from towertalk from W0UN: I disagree with the one is enough, although my reference material is buried deep enough that I haven't found it the last time or two I looked. The origi; /archives//html/Towertalk/1997-04/msg00243.html (10,797 bytes)
15. [TowerTalk] Rotatable Antenna Mounts (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Thu, 17 Apr 1997 08:55:33 -0500; You could do as W0AIH does at "the farm". He has several of these high telephone poles (wooden). His method is to jam a Rohn 25 top ("pointy") section down onto the top of the pole. This allows the; /archives//html/Towertalk/1997-04/msg00516.html (7,755 bytes)
16. Tower Loading (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Tue, 04 Feb 1997 12:51:52 -0600; Reader poll: Those of you with towers larger than 70': What tower are you using? How much windloading do you have at the top? How much additional side mount? AND Who here has actually calculated the; /archives//html/Towertalk/1997-02/msg00055.html (8,964 bytes)
17. Tower Loading (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Thu, 06 Feb 1997 09:28:46 -0600; Are we getting a little short here, Steve?? It is not my intention to "outguess" Rohn, but to do several, iterative calculations myself. Rohn tower applications as drawn/described in many pages, are; /archives//html/Towertalk/1997-02/msg00089.html (12,319 bytes)
18. Wind Load of Coax Against Tower Leg (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Fri, 07 Feb 1997 13:13:44 -0600; 0.67 ref: ex-W6QHS, "Physical Design of Yagis" -- Chad Kurszewski, WE9V e-mail: Chad_Kurszewski@csg.mot.com The Official "Sultans of Shwing" Web Site: http://www.QTH.com/sos -- FAQ on WWW: http://www; /archives//html/Towertalk/1997-02/msg00115.html (7,824 bytes)
19. NEC & Tower Permits (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Mon, 10 Feb 1997 10:13:26 -0600; I know it's a good idea, but did anyone ever have a tower permit denied because it was within falling distance of electrical lines >250V? The local building inspector cites NEC 810-13, something that; /archives//html/Towertalk/1997-02/msg00198.html (8,377 bytes)
20. [TowerTalk] Visible Material (score: 1): Author: kurscj@oampc12.csg.mot.com (Chad Kurszewski WE9V); Date: Thu, 20 Feb 1997 14:16:16 -0600; Rohn 25 legs = 1.25" dia Rohn 25 crossbraces = 5/16" dia Considering 3 legs, and 3 crossbraces for a cross-section (not 100% correct), the area is 4.6875 square inches. And, if viewed from the corre; /archives//html/Towertalk/1997-02/msg00438.html (8,159 bytes)

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