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Total 15 documents matching your query.

1. [TowerTalk] homebrew rotator (score: 1): Author: "Danny Pease" <dpease@adams.net>; Date: Wed, 1 Jun 2016 14:22:58 -0500; I have been intrigued with putting together my own antenna mast rotation system and wondered if anyone has any info on using a rack and pinion gear type system in conjunction with a linear actuator.; /archives//html/Towertalk/2016-06/msg00011.html (6,707 bytes)
2. Re: [TowerTalk] homebrew rotator (score: 1): Author: "Bert Almemo" <balmemo@sympatico.ca>; Date: Wed, 1 Jun 2016 15:59:21 -0400; Hi Danny, Rack and pinion is mostly for linear motion. I believe a worm gear with direct drive or a chain drive would be a better choice. Using a worm gear you have the breaking function built in. Go; /archives//html/Towertalk/2016-06/msg00012.html (8,569 bytes)
3. Re: [TowerTalk] homebrew rotator (score: 1): Author: Patrick Greenlee <patrick_g@windstream.net>; Date: Wed, 1 Jun 2016 15:09:45 -0500; Why a linear actuator since rotary motion is what you want? I suppose an electric rack and pinion set from a junk yard donor car could do the deed but not my first choice. Patrick NJ5G Rack and pinio; /archives//html/Towertalk/2016-06/msg00013.html (9,343 bytes)
4. Re: [TowerTalk] homebrew rotator (score: 1): Author: ScottW3TX <scottw3tx@verizon.net>; Date: Wed, 01 Jun 2016 16:38:55 -0400; It quite simple to fashion an indestructible rotator from off-the-shelf 2 stage worm gearboxes, a pulse counter, a Green Heron rotator controller plus DC interface, and some sprockets. Typically one; /archives//html/Towertalk/2016-06/msg00017.html (9,034 bytes)
5. Re: [TowerTalk] homebrew rotator (score: 1): Author: mike repinski via TowerTalk <towertalk@contesting.com>; Date: Wed, 1 Jun 2016 16:47:53 -0400; I remember seeing such a set up on a EME website. There were 2 linear actuators one on each side. They both drove separate rack type gears that drove a single gear that was in the middle. This gear w; /archives//html/Towertalk/2016-06/msg00019.html (9,734 bytes)
6. Re: [TowerTalk] homebrew rotator (score: 1): Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>; Date: Wed, 1 Jun 2016 17:07:39 -0400; I remember visiting the radio shack of DX legend Dick Spencely's (KV4AA) in the 70's and saw how he rotated his Mosley 20 meter Yagi with a bicycle elongated chain drive that came into the shack and; /archives//html/Towertalk/2016-06/msg00022.html (11,524 bytes)
7. Re: [TowerTalk] homebrew rotator (score: 1): Author: <john@kk9a.com>; Date: Wed, 1 Jun 2016 18:50:08 -0400; I had a Telrex rotator which was basically a reversible A/C motor connected to a gear box by a chain. It used a selsyn for indicating direction. If I were to build one I would use a DC motor and a mo; /archives//html/Towertalk/2016-06/msg00026.html (8,388 bytes)
8. Re: [TowerTalk] homebrew rotator (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Wed, 1 Jun 2016 19:11:04 -0400; Here's a home built, chain drive that might turn your whole house. He used it to tun the top section of a massive tower that could be seen from 10 to 12 miles.Top two photos on http://www.rogerhalste; /archives//html/Towertalk/2016-06/msg00028.html (10,796 bytes)
9. Re: [TowerTalk] homebrew rotator (score: 1): Author: Bob K6UJ <k6uj@pacbell.net>; Date: Wed, 1 Jun 2016 16:38:11 -0700; wow Roger, Reminds me of the movie Crocodile Dundy. "You call that a knife (rotator) now here's a knife (rotator)" Bob K6UJ On 6/1/16 4:11 PM, Roger (K8RI) on TT wrote: Here's a home built, chain dri; /archives//html/Towertalk/2016-06/msg00030.html (11,072 bytes)
10. Re: [TowerTalk] homebrew rotator (score: 1): Author: Jim Miller <jtmiller47@gmail.com>; Date: Wed, 1 Jun 2016 16:47:30 -0400; McMaster has worm stuff Why a linear actuator since rotary motion is what you want? I suppose an electric rack and pinion set from a junk yard donor car could do the deed but not my first choice. Pat; /archives//html/Towertalk/2016-06/msg00044.html (10,449 bytes)
11. Re: [TowerTalk] homebrew rotator (score: 1): Author: Jerry Gardner <jerryw6uv@gmail.com>; Date: Thu, 2 Jun 2016 10:19:48 -0700; I wouldn't necessarily rule out an AC motor. There are advantages, especially for large systems. AC induction motors don't have brushes, so there's no source of EMI right up at the antenna when it's; /archives//html/Towertalk/2016-06/msg00056.html (9,408 bytes)
12. Re: [TowerTalk] homebrew rotator (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Fri, 3 Jun 2016 01:41:49 -0400; Yes it kinda does <LOL> 73 Roger (K8RI) Reminds me of the movie Crocodile Dundy. "You call that a knife (rotator) now here's a knife (rotator)" Bob K6UJ On 6/1/16 4:11 PM, Roger (K8RI) on TT wrote: H; /archives//html/Towertalk/2016-06/msg00078.html (12,084 bytes)
13. Re: [TowerTalk] homebrew rotator (score: 1): Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>; Date: Fri, 3 Jun 2016 07:59:12 +0000; Hi, Actually is not difficult to make a rotator at home. Good thing is the electronic positioning is not attached to mechanical parts anymore. So you can work in a simple and robust mechanical system; /archives//html/Towertalk/2016-06/msg00079.html (15,474 bytes)
14. Re: [TowerTalk] homebrew rotator (score: 1): Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>; Date: Fri, 3 Jun 2016 08:05:20 +0000; I forgot to mention the nice device from EA4TX as well, available at Dx Engineering; http://ea4tx.com/ars-shield/ 73, Maximo Hi, Actually is not difficult to make a rotator at home. Good thing is the; /archives//html/Towertalk/2016-06/msg00080.html (15,747 bytes)
15. [TowerTalk] homebrew rotator (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Fri, 3 Jun 2016 07:28:04 -0700; Yes it kinda does <LOL> 73 Roger (K8RI) the hub city brand. They all come with a single worm drive built into them..and also available in double worm drive. They can be ordered in almost any gear rat; /archives//html/Towertalk/2016-06/msg00084.html (10,365 bytes)

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