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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/FOQDO7FQMUYBD2C7M7MOT6S3GQFGMLL5/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "FOQDO7FQMUYBD2C7M7MOT6S3GQFGMLL5",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/TSY4RMMNCNRS7GFF24OMP2NPYRSO4ZHZ/?format=api",
    "sender": {
        "address": "wa4ivm (a) amsat.org",
        "mailman_id": "5248da09094f43edb835bb414924cde3",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/5248da09094f43edb835bb414924cde3/emails/?format=api"
    },
    "sender_name": "Jim Wright",
    "subject": "[amsat-bb] Re: G-5500 Orientation",
    "date": "2010-10-11T03:34:31Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TSY4RMMNCNRS7GFF24OMP2NPYRSO4ZHZ/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "  You want to mount the antenna on the elevation rotor horizontal so it \ncan flip over on it's back and track through the AZ mechanical stop.  \nFor instance, if the bird is going though North/South, which ever you \nhave for the mechanical stop, software can control it to flip on it's \nback and  azimuth is 180 degrees off so you are able to track through \nthe stop and keep on chasing the bird instead of going 360 in the wrong \ndirection and wasting the minute it takes to go 360.\n\nFor example stop is at North.  Point AZ at South and have EL at 180.  \nActually it is pointing North because the EL is making it look like it \nis North.  As the bird comes past AOS the EL rotor backs down and the AZ \nrotor comes around, ending up on the stop at LOS in this example.  Some \nsoftware will let you enjoy the 450 degrees AZ and the 180 EL without so \nmuch fuss, but this works.\n\nGood luck.\n\n73,\nJim\n\n\n\nOn 10/10/2010 1:07 PM, Dean Maluski wrote:\n> I am installing a G-5500 Elevation rotor and trying to determine\n> orientation of elevation with reference to software specifically\n> rtrcontrold for Linux but I'd suspect this would be typical to most PC\n> applications.\n> If a sat is 45 degrees above horizon should rotor control read 45 or 135\n> degrees on the hardware control dial?\n> What I'm asking is when I want to mount antenna where 90 degrees is\n> horizontal or vertical?\n> It seems natural that midway point is horizontal but midway point is 90\n> degrees. I don't think I ever have a reason to point antenna into the\n> mud so it makes most sense that midway 90 degrees is straight up??\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",
    "attachments": []
}