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#1
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A friend gave me a forty foot Utility pole. Since I am not a climber I
have not determined how to make the best of this in my continual antenna tinkering. I keep coming back to the hazer transit method. The device would be complicated by the fact that the pole is about 12 inches in diameter at the bottom and 6 inches at the top. I expect to bury 5 feet of it. I hope to construct the device so that there is NEVER a need to climb the pole. The galvanized wire rope on my Crank up mast that I purchased in the late 1970's is still looking fine. Any experience or ideas are appreciated! BTW, Any idea why this tram mechanism is called a "hazer?" John Ferrell W8CCW |
#2
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On Feb 6, 8:29*pm, John Ferrell wrote:
A friend gave me a forty foot Utility pole. Since I am not a climber I have not determined how to make the best of this in my continual antenna tinkering. I keep coming back to the hazer transit method. The device would be complicated by the fact that the pole is about 12 inches in diameter at the bottom and 6 inches at the top. I expect to bury 5 feet of it. I hope to construct the device so that there is NEVER a need to climb the pole. The galvanized wire rope on my Crank up mast that I purchased in the late 1970's is still looking fine. Any experience or ideas are appreciated! BTW, Any idea why this tram mechanism is called a "hazer?" John Ferrell W8CCW Hazer is a brand name of GlenMartin towers: http://www.glenmartin.com/catalog/page10.html, maybe it was the guy that originally designed it, or it could have just sounded neat to marketing. what type of antennas are you planning on putting on the pole? personally i would put a couple of good screw eyes with pulleys and run some decent rope through them and use it for wires. |
#3
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On Sun, 7 Feb 2010 05:02:58 -0800 (PST), Dave wrote:
Hazer is a brand name of GlenMartin towers: http://www.glenmartin.com/catalog/page10.html, maybe it was the guy that originally designed it, or it could have just sounded neat to marketing. what type of antennas are you planning on putting on the pole? personally i would put a couple of good screw eyes with pulleys and run some decent rope through them and use it for wires. I think the word "Lift" is probably the most accurate term to use. There is a good series on YouTube referring to "AntennaVater" for the same type of device. I want to keep the structure as general as possible so I can continue to experiment with a broad range of Ham antennas from DC to light. I shy away from rope because of the limited life expectancy. John Ferrell W8CCW |
#4
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On Feb 7, 7:22*am, John Ferrell wrote:
On Sun, 7 Feb 2010 05:02:58 -0800 (PST), Dave wrote: Hazer is a brand name of GlenMartin towers:http://www.glenmartin.com/catalog/page10.html, maybe it was the guy that originally designed it, or it could have just sounded neat to marketing. what type of antennas are you planning on putting on the pole? personally i would put a couple of good screw eyes with pulleys and run some decent rope through them and use it for wires. I think the word "Lift" is probably the most accurate term to use. There is a good series *on YouTube referring to "AntennaVater" for the same type of device. I want to keep the structure as general as possible so I can continue to experiment with a broad range of Ham *antennas from DC to light. I shy away from rope because of the limited life expectancy. John Ferrell W8CCW Limited life expectancy????? I am still using some ropes I bought in the 1960's. Some type of synthetic material nicely woven into a 3/8 inch rope. You need to investigate further, or buy some better class of rope! Paul, KD7HB |
#5
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On Feb 7, 7:18*pm, " wrote:
On Feb 7, 7:22*am, John Ferrell wrote: On Sun, 7 Feb 2010 05:02:58 -0800 (PST), Dave wrote: Hazer is a brand name of GlenMartin towers:http://www.glenmartin.com/catalog/page10.html, maybe it was the guy that originally designed it, or it could have just sounded neat to marketing. what type of antennas are you planning on putting on the pole? personally i would put a couple of good screw eyes with pulleys and run some decent rope through them and use it for wires. I think the word "Lift" is probably the most accurate term to use. There is a good series *on YouTube referring to "AntennaVater" for the same type of device. I want to keep the structure as general as possible so I can continue to experiment with a broad range of Ham *antennas from DC to light. I shy away from rope because of the limited life expectancy. John Ferrell W8CCW Limited life expectancy????? I am still using some ropes I bought in the 1960's. Some type of synthetic material nicely woven into a 3/8 inch rope. You need to investigate further, or buy some better class of rope! Paul, KD7HB agreed. for something not accessible like that you need decent uv resistant dacron. that is readily available and lasts for many years under load. Check it periodically for wear and pull replacements up as needed without climbing. if the pole is going to have cables running up to feedpoints then use wire rope, just be sure to use big enough blocks with the right materials. |
#6
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On Mon, 8 Feb 2010 15:14:59 -0800 (PST), Dave wrote:
On Feb 7, 7:18*pm, " wrote: On Feb 7, 7:22*am, John Ferrell wrote: On Sun, 7 Feb 2010 05:02:58 -0800 (PST), Dave wrote: Limited life expectancy????? I am still using some ropes I bought in the 1960's. Some type of synthetic material nicely woven into a 3/8 inch rope. You need to investigate further, or buy some better class of rope! Paul, KD7HB I will keep that in mind. I have about 250 feet of blue 3/8" Nylon that was my primary anchor rope from my sail boating days. It has served from time to time as a temporary guy line for ham radio. However, to hoist the fixture a winch with a brake sounds more convenient. John Ferrell W8CCW |
#7
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On Feb 9, 2:49*pm, John Ferrell wrote:
On Mon, 8 Feb 2010 15:14:59 -0800 (PST), Dave wrote: On Feb 7, 7:18*pm, " wrote: On Feb 7, 7:22*am, John Ferrell wrote: On Sun, 7 Feb 2010 05:02:58 -0800 (PST), Dave wrote: Limited life expectancy????? I am still using some ropes I bought in the 1960's. Some type of synthetic material nicely woven into a 3/8 inch rope. You need to investigate further, or buy some better class of rope! Paul, KD7HB I will keep that in mind. I have about 250 feet of blue 3/8" Nylon that was my primary anchor rope from my sail boating days. It has served from time to time as a temporary guy line for ham radio. However, to hoist the fixture a winch with a brake sounds more convenient. John Ferrell W8CCW John, I think my ropes are dacron, as mentioned. That stuff really lasts!!!! I still have two dacron sweaters my mother bought for me when I started high school back in 1953. Still fit and have never worn out. I haven't seen dacron ropes for a long time. Paul, KD7HB |
#8
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#9
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John Ferrell wrote:
A friend gave me a forty foot Utility pole. Since I am not a climber I have not determined how to make the best of this in my continual antenna tinkering. I keep coming back to the hazer transit method. The device would be complicated by the fact that the pole is about 12 inches in diameter at the bottom and 6 inches at the top. I expect to bury 5 feet of it. I hope to construct the device so that there is NEVER a need to climb the pole. The galvanized wire rope on my Crank up mast that I purchased in the late 1970's is still looking fine. Any experience or ideas are appreciated! The Glen Martin hazer looks like (I've never seen one in person) it uses the tower as a track, and the constant cross section is key. The taper of the utility pole sorta kills that idea, so maybe some kind of curtain track turned vertical is what you need, something industrial like the kind used in theaters. Bolt it straight to the pole and fabricate a trolley to carry a rotor, thrust bearing, etc. Once you get the trolley to the top wrap the cables around the pole in a spiral to keep them from flopping around in the wind. I'd use a galvanized wire rope as opposed to something plastic to pull and hold it up. BTW, Any idea why this tram mechanism is called a "hazer?" John Ferrell W8CCW I have no idea at all, I thought it might have been something nautical but dictionary searches don't show that at all. - Galen, W8LNA |
#10
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On Feb 10, 5:28*pm, Jim Lux wrote:
wrote: John, I think my ropes are dacron, as mentioned. That stuff really lasts!!!! I still have two dacron sweaters my mother bought for me when I started high school back in 1953. Still fit and have never worn out. I haven't seen dacron ropes for a long time. Paul, KD7HB Sure, you've seen Dacron ropes, just not under that name. *Dacron is a trade name for a particular form of Polyethylene Terephthalte (PET), aka Polyester. Beverage bottles are a big use of PET, but a lot more winds up as fabric or rope. *In film form, one trade name is Mylar. (originally, it was called Terylene, but Dupont called it Dacron, probably because it sounded better, and it was similar to Nylon, another Dupont product..) You see it labeled as "polyester" rope these days (probably because DuPont's patents have expired, so anyone can make the stuff, but only DuPont can call it Dacron) Thanks, Jim. Paul |
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