Mail Archive Search: <+from:donovanf@sgate.com>

Results:

References: [ +from:donovanf@sgate.com: 144 ]

Total 144 documents matching your query.

41. [TowerTalk] Re: Tower Question (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Thu, 7 Aug 1997 21:24:12 -0400 (EDT); Ken, Yes, your proposed approach will work, but a few additional points to consider: - Pipe is a very non-cost effective structural shape for this application! You would be much better off to find a; /archives//html/Towertalk/1997-08/msg00289.html (9,584 bytes)
42. [TowerTalk] 20 PHASED (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Fri, 8 Aug 1997 06:59:25 -0400 (EDT); Sergio - The ideal electrical length of a phasing line is an odd multiple of 1/4 wavelength. On 20 meters (14.150 MHz) preferred 9913 lengths (89% velocity factor) would be odd multiples of 15 ft 6 i; /archives//html/Towertalk/1997-08/msg00304.html (8,842 bytes)
43. [TowerTalk] Telrex Antenna Parts (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Fri, 8 Aug 1997 21:39:09 -0400 (EDT); Tucker Electronics advertised availability of some spare parts for Telrex antennas in the current issue of the Yellow Sheets. Call Jim Tucker at: 800-527-4642 ext 8325 73 Frank W3LPL donovanf@sgate.c; /archives//html/Towertalk/1997-08/msg00332.html (7,489 bytes)
44. [TowerTalk] Takeoff angle (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Sat, 9 Aug 1997 23:13:01 -0400 (EDT); A goood rough approximation is that the take-off angle is reduced by the angle of slope of the Fresnel Zone. The equations for Fresnel Zone size are readily available in any good antenna handbook. To; /archives//html/Towertalk/1997-08/msg00357.html (8,131 bytes)
45. [TowerTalk] Pre-made jumper cables (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Mon, 18 Aug 1997 21:35:11 -0400 (EDT); Sam - I highly recommend RF Connection. A laqrge part of their business is pre-made RF cables. You can reach their home page via the PVRC Homepage http://www.pvrc.org 73 Frank W3LPL donovanf@sgate.co; /archives//html/Towertalk/1997-08/msg00545.html (7,747 bytes)
46. [TowerTalk] Tower Painting? (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Tue, 26 Aug 1997 17:08:03 -0400 (EDT); Jeff - The American Galvanizers Association has an excellent pamphlet entitled "Painting Galvanized Steel Structures." You can get a free copy from them by calling 303-750-2900. Basically they recomm; /archives//html/Towertalk/1997-08/msg00739.html (8,638 bytes)
47. [TowerTalk] Re: [CQ-Contest] Magnetic Declination (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Tue, 1 Jul 1997 22:04:13 -0400 (EDT); Hi Pete! Instead of fooling with magnetic headings, why not use the shadow cast by the tower at local noon? Its shadow will point true north at local noon! Now... How to determine local noon? Just us; /archives//html/Towertalk/1997-07/msg00039.html (8,155 bytes)
48. [TowerTalk] Re: [CQ-Contest] Magnetic Declination (fwd) (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Tue, 1 Jul 1997 22:29:46 -0400 (EDT); Of course, it's summer, and the Sun's shadow will point south in 8P (latitude 11 degrees North) at high noon! Thinking this way is just a natural handicap from living in the mid-latitudes of the nort; /archives//html/Towertalk/1997-07/msg00043.html (8,943 bytes)
49. [TowerTalk] U-Bolts for Ham IV ? (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Wed, 2 Jul 1997 06:08:11 -0400 (EDT); Norm's Rotor Service will have them, 301-874-5885 0800-1630 M-F 73 Frank W3LPL donovanf@sgate.com Scott N6VB -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesti; /archives//html/Towertalk/1997-07/msg00052.html (7,473 bytes)
50. [TowerTalk] Upside down mast (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Thu, 3 Jul 1997 20:10:51 -0400 (EDT); Hi Richard! Yes, I tried it over 20 years ago, and it works fine. Since that time I've gone to a multi-tower station, so no need for those trix any more. My lower mast had a large 20 meter monobander; /archives//html/Towertalk/1997-07/msg00146.html (9,024 bytes)
51. [TowerTalk] U-Bolts (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Tue, 8 Jul 1997 20:19:20 -0400 (EDT); Al - The Rohn caltalog lists two 4 inch hot dip galvanized u-bolts: p/n JR62A 6" long x 4" between legs x 3/8" diameter p/n JR89A 6.5" long x 4" between legs x 1/2" diameter 73 Frank W3LPL donovanf@s; /archives//html/Towertalk/1997-07/msg00319.html (7,215 bytes)
52. [TowerTalk] Brand New AB-105 Tower For Sale! (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Sun, 20 Jul 1997 00:25:22 -0400 (EDT); This is a very rare find, perhaps never to be found ever again: Brand new AB-105 tower, still in the original crates! For those not familiar with AB-105, it's a military tower with a 24 inch face wid; /archives//html/Towertalk/1997-07/msg00642.html (7,705 bytes)
53. [TowerTalk] Cubical Quads (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Wed, 4 Jun 1997 19:11:00 -0400 (EDT); This message is forwarded from my neighbor KC3D (hrensin@erols.com). Please reply directly to him. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Howard M. Rensin KC3D 3405 Shady La. mai; /archives//html/Towertalk/1997-06/msg00181.html (7,518 bytes)
54. [TowerTalk] thimble gap too narrow (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Fri, 6 Jun 1997 21:00:47 -0400 (EDT); Pete - I'm not sure if you are using Preformed Line Products "Big Grips," but if you are, you must use ONLY heavy duty thimbles such as the Rohn 3/8THH thimble. Rohn thimbles use the "open pattern" y; /archives//html/Towertalk/1997-06/msg00252.html (8,906 bytes)
55. [TowerTalk] Source for Aluminum Tubing? (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Wed, 11 Jun 1997 21:11:36 -0400 (EDT); Dick, I purchase much of my aluminum tubing from Dillsburg Aeroplane works in Dillsburg, PA. The owner, Charles Vogelsong, is a ham. You can obtain their telephone number from "information." They shi; /archives//html/Towertalk/1997-06/msg00361.html (7,734 bytes)
56. [TowerTalk] Mast vendors! (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Sat, 14 Jun 1997 10:48:31 -0400 (EDT); Hi Bill, I purchase my chrome-moly masts from Dillsburg Aeroplane Works in Dillsburg, PA. Their prices are very reasonable, their stock is massive, they will send you a catalog based on a telephone r; /archives//html/Towertalk/1997-06/msg00446.html (7,657 bytes)
57. [TowerTalk] Turnbuckles (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Wed, 25 Jun 1997 21:28:15 -0400 (EDT); Hi Earl! I'd use my favorite hardware store: McMaster-Carr Supply Company. Galvanized drop forged steel turnbuckles 1/2" dia, rated 2200 pound working load: eye & eye 6 inch take up p/n 2999T54 $12.2; /archives//html/Towertalk/1997-06/msg00888.html (7,935 bytes)
58. [TowerTalk] Belleville washers source of supply? (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Sun, 29 Jun 1997 12:28:49 -0400 (EDT); Hi Dan! Bellevilles are available in a wide assortment of sizes from my favorite hardware store: McMaster-Carr Supply Co. To order via credit card call: 908-329-3200 M-F 0700-2100 Eastern. When I ord; /archives//html/Towertalk/1997-06/msg00978.html (8,339 bytes)
59. [TowerTalk] tower damage / insurance question (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Thu, 1 May 1997 05:53:22 -0400 (EDT); Paul, Several years ago a painter spilled stain on one of a matched pair of sofas. His insurance company (a large well known company...) offered to pay for the repair of one sofa, but not to exceed i; /archives//html/Towertalk/1997-05/msg00008.html (9,154 bytes)
60. [TowerTalk] Fwd: Mast and stacking question (score: 1): Author: donovanf@sgate.com (Frank Donovan); Date: Sat, 3 May 1997 09:46:50 -0400 (EDT); Scott, Any reputable supplier of specialty steels, such as 4130, will routinely provide you with the metalurgical test results for the steel tubing you have purchased. Some suppliers charge a few dol; /archives//html/Towertalk/1997-05/msg00076.html (8,159 bytes)

Current List: 41 - 60
Page: [1] [2] [3] [4] [5] [6] [7] [8]