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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/B6HBAVEEUW7ZIBH3LBRBT3JAU4B7B3Z7/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "B6HBAVEEUW7ZIBH3LBRBT3JAU4B7B3Z7",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/B6HBAVEEUW7ZIBH3LBRBT3JAU4B7B3Z7/",
    "sender": {
        "address": "whiteld (a) usa.net",
        "mailman_id": "64092cdf17de46d2bbf0a5ab7a58e6f9",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/64092cdf17de46d2bbf0a5ab7a58e6f9/emails/"
    },
    "sender_name": "Lowell White",
    "subject": "[amsat-bb] Re: Another G5500 Question",
    "date": "2009-09-02T14:20:51Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Randy,\n\nI'm glad to see you doing this. Here are a couple tips:\n\n-Yes, a mounting plate allows the rotor to sit inside the tower and torque\nagainst the legs of the tower. Usually they're a flat, triangular plate with\nU-bolts to connect to the tower legs. A cut-out on the bottom allows for cable\npassage and holes for bolting the rotor to the plate.\n\n-A thrust bearing can be used at the top of the tower segment. It attaches\nboth to the mast (coming up through the top from the rotor to the antenna boom\n/ elevation rotor) and to the tower. The bearing frees the rotor from directly\nsupporting the weight of the antennas / boom  / elevation rotor while allowing\nthe (azimuth) rotor to turn the asembly with ease.\n\n-For a simple assembly of shorter 2M / 432 antennas the thrust bearing is\noptional but using one can indeed extend the life of the azimuth rotor (it's\nbearings, in particular, and lesser so, it's motor). \n\n-I'll let someone else address the controller interfaces... am learning more\nabout them myself. :-)\n\n-If you are using only an azimuth rotor you can, for the most part, get by\nwith your antennas \"fixed\" at a 15 degree elevation for most uses.\n\n73\nLowell\nK9LDW\n\n------ Original Message ------\nReceived: Wed, 02 Sep 2009 08:00:36 AM CDT\nFrom: \"Randy\" <[email protected]>\nTo: <[email protected]>\nSubject: [amsat-bb]  Another G5500 Question\n\n> Question.. Rotor is on order along with the FT-897D I know I should mount\n> the rotor in a tower with a thrust plate I think its called.  But don't\nhave\n> one .\n> I only have a 2 meter and 440mhz yagi to mount ooon it .. \n> Will that be a problem .. Or is it mostly when its loaded Up to near the\n> max? or one of those faster wear and tear Things no matter what?  Oh .. And\n> 3rd party controllers to interface to the computer.??\n> Are they all so darn expensive?\n> \n> Randy - N2CUA\n> \n> \n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n> \n\n\n\n\n",
    "attachments": []
}