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41. [TowerTalk] Lightning prot. (& bases on slopes) (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 31 Jul 1999 13:31:52 -0700; In a previous life I spent almost four years as Senior Applications Engineer for PolyPhaser, a manufacturer of surge suppression products. Poly primarily uses MOV's. major cable television operator (; /archives//html/Towertalk/1999-07/msg00538.html (11,980 bytes)
42. [TowerTalk] Cable loss (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 26 Jun 1999 11:12:11 -0700; PVC pipe won't stop radiation. My experiences with ladder line lead me to prefer coax. I would suggest 9913 (which is a bear to work with) or better still Times Microwave LMR cable which is less expe; /archives//html/Towertalk/1999-06/msg00316.html (8,160 bytes)
43. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Fri, 9 Apr 1999 20:30:22 -0700; This was pushed through by a company called Anchor Guard in South Dakota (I think they're in Sioux Falls). They make anodic and cathodic protection devices. Allegedly, a tower or two came down becaus; /archives//html/Towertalk/1999-04/msg00205.html (11,685 bytes)
44. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 10 Apr 1999 20:56:11 -0700; Clamping usually works, but it can eventually work loose. Exothermic welding is really the best way to go albeit expensive. Erico has the CADWELD(TM) system and has a "one-shot" product which would p; /archives//html/Towertalk/1999-04/msg00403.html (12,264 bytes)
45. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 15 Apr 1999 19:27:49 -0700; Angle or even horizontal will work. You can drill out the hard layer and backfill, although the rod-to-earth contact will not be as "tight." Because of the material, you may want to consider conducti; /archives//html/Towertalk/1999-04/msg00405.html (11,523 bytes)
46. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 15 Apr 1999 19:46:06 -0700; They have never given it away as a general rule; however, I used to include a few as door prizes when contacted for material from various hamfest organizers. Eventually, Ken Rand will get the 3rd edi; /archives//html/Towertalk/1999-04/msg00406.html (10,001 bytes)
47. [TowerTalk] Lightning protection grounding (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 15 Apr 1999 19:50:54 -0700; The conductor running down the inside of the tower to ground is unnecessary. It carries maybe 10~15% of the total current. However, there is higher resistance between two sections of a crankup which; /archives//html/Towertalk/1999-04/msg00407.html (11,189 bytes)
48. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 15 Apr 1999 19:52:49 -0700; We did have a four page "summary" written for the ham. That was a freebie. Could you be thinking of that? 73, Bob AA0CY Nope - the book they gave away had different, read less informative, informatio; /archives//html/Towertalk/1999-04/msg00408.html (10,367 bytes)
49. [TowerTalk] Lightning protection grounding (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 15 Apr 1999 19:55:12 -0700; Don't forget that lightning has been known to fuse the cables and pulleys into one big molten mess, so you want to provide an alternative path. 73, Bob AA0CY But this wouldn't be considered a good bo; /archives//html/Towertalk/1999-04/msg00409.html (9,735 bytes)
50. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 17 Apr 1999 10:00:28 -0700; Glad you asked. I apologize for not filling in the details. Not that I'm "playing games," but at the time I had no time to complete the post and figured a few words of advice were better than none. C; /archives//html/Towertalk/1999-04/msg00458.html (9,920 bytes)
51. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 17 Apr 1999 10:18:08 -0700; Methinks that is one of the earlier catalogs! That was, however, before my time there. 73, Bob AA0CY Nope; the original booklet which was mailed as a freebie had many pages - it had a purple cover wi; /archives//html/Towertalk/1999-04/msg00459.html (9,325 bytes)
52. [TowerTalk] copper flashing (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 17 Apr 1999 10:16:51 -0700; Try contact Ron Block for the copper. I understand he is far less expensive than Poly distributors and I believe he gives hams a discount (he is one). I *think* his # is 800 421 7170 and he's in sout; /archives//html/Towertalk/1999-04/msg00460.html (9,054 bytes)
53. [TowerTalk] Lightning protection grounding (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 17 Apr 1999 10:33:49 -0700; Save your money and put up a simple standard lightning rod (Franklin terminal). Same difference. 73 Bob AA0CY Eric, I have seen a fairly inexpensive static dissipater by Lightning Prevention Sytems o; /archives//html/Towertalk/1999-04/msg00461.html (9,250 bytes)
54. [TowerTalk] Lightning protection grounding (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 17 Apr 1999 10:14:28 -0700; Read the first paragraph below again carefully. This wire would not carry much of the current. Also, if you place it too close to the coax, you can have a flashover. That is why the shield of the coa; /archives//html/Towertalk/1999-04/msg00465.html (12,151 bytes)
55. [TowerTalk] Lightning protection grounding (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sun, 18 Apr 1999 20:56:45 -0700; Actually #0 (1/0) is "light" for good lightning grounding. If you must use round conductors, 2/0 (00) is the smallest recommended. Wide copper strap is still the best choice. 73 Bob AA0CY ex Sr Appl; /archives//html/Towertalk/1999-04/msg00499.html (10,226 bytes)
56. [TowerTalk] Ground Rods (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Thu, 29 Apr 1999 19:53:53 -0700; That's surprising but verrrry interrresting. Get the old version (2nd ed), but I would recommend saving up some $$ and buying the 3rd ed when it comes out. Roger had a, shall we say, interesting way; /archives//html/Towertalk/1999-04/msg00697.html (9,668 bytes)
57. [TowerTalk] Reqst for assistance: choosing a remote ant switch (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Fri, 30 Apr 1999 17:56:27 -0700; Steve, When I was at PolyPhaser I created two "specials" to meet the needs of the situation discussed below and for V/UHF'ers who needed to power pre-amps and sequencers. If memory serves, they handl; /archives//html/Towertalk/1999-04/msg00712.html (9,744 bytes)
58. [TowerTalk] Ground Rod Under Tower Base (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 20 Mar 1999 16:42:45 -0800; I see someone has taken the time to read and understand Roger Block's book. BTW, the 3d edition will be out soon. It was revised and some new stuff put in by Ken Rand who is PolyPhaser's current resi; /archives//html/Towertalk/1999-03/msg00392.html (9,893 bytes)
59. [TowerTalk] Connector and switch losses (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sat, 16 Jan 1999 21:09:51 -0800; First off, you need to take into consideration the "uncertainties" of the measurement device. IOW, what is the accuracy of the AEA device. Most devices which measure loss are, at best, plus or minus; /archives//html/Towertalk/1999-01/msg00303.html (12,010 bytes)
60. [TowerTalk] Connectors for 75 ohm hardline (score: 1): Author: aa0cy@nwrain.com (Bob Wanderer); Date: Sun, 15 Nov 1998 16:35:26 -0800; If you want to BUY 75-Ohm CATV hardline connectors, contact Gilbert Engineering in Glendale, Ariz (near Phoenix) or LRC in Horseheads, NY. Gilbert makes several useful variants such as N and UHF to h; /archives//html/Towertalk/1998-11/msg00531.html (8,620 bytes)

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