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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UR7QDMAKOMQXWUKHEKUAZW4FVK5Z3XCG/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "UR7QDMAKOMQXWUKHEKUAZW4FVK5Z3XCG",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/UR7QDMAKOMQXWUKHEKUAZW4FVK5Z3XCG/?format=api",
    "sender": {
        "address": "kb9ups (a) excite.com",
        "mailman_id": "f507d3c671fd4259b4214c12309b2238",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/f507d3c671fd4259b4214c12309b2238/emails/?format=api"
    },
    "sender_name": "Steve kb9ups",
    "subject": "[amsat-bb] Re: Limits of G-5500?",
    "date": "2009-03-08T11:11:48Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi All,\n\nI'm running a 10 foot dish and have built a drive system including controler that works \"very well\". Please look at my web page and contact me if you wish..\nwww.qsl.net/kb9ups \n\n\nSteve/kb9ups\nARISS Mentor\nAMSAT area coordinator, Toledo, Oh.\nAMSAT area coordinator, Streator, IL.\nwww.qsl.net/kb9ups\n\n-----Original Message-----\nFrom: \"Edward Cole\" [[email protected]]\nDate: 03/07/2009 03:38 PM\nTo: \"Mark L. Hammond\" <[email protected]>, [email protected]\nSubject: Re: [amsat-bb] Re: Limits of G-5500?\n\nAt 05:25 AM 3/7/2009, Mark L. Hammond wrote:\n>Hi All,\n>\n>Recently I acquired a 7.5' dish.  It's aluminum with a steel ring \n>mount.  I estimate the dish weights maybe 50 lbs?\n>\n>What is a realistic limit for a Yaesu G-5500 rotator?  Would it \n>handle a dish of this size/weight if carefully counterbalanced?  Or \n>is it too big and silly to even consider?\n>\n>I know wind load is a concern of course, too.  But I imagine keeping \n>it close to the ground...\n>\n>I've thought about cutting it down in size to reduce weight and wind \n>load, but would rather not go that route...\n>\n>73,\n>\n>Mark L. Hammond  [N8MH]\n\nMark,\n\nIs the G-5500 the same as the B5500?  I would not recommend \nthat.  The issue is not the weight but the wind area forces.  A 7.5 \nfoot dish can have 2000-lbs of wind force at 70mph.  What is \nrecommended is a HD azimuth rotator coupled with a satellite dish \nactuator arm for elevation.  I do this with my 2m-eme array (four \n21-foot booms on a 12x12 foot H-frame).  The B5500/B5400 will handle \nup to a 3-foot dish probably at maximum.  I have had a 33-inch offset \nfeed dish on my B5400 along with a long 432 and 1296 yagis with no \nproblems (knock on wood).\n\nSatellite actuators are pretty cheap for running a dish.\n\n73, Ed - KL7UW \n\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n\n",
    "attachments": []
}