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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GBIKLGFWH32XYTS6EGKB7PUB4QS3P7FP/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "D2723929.58171%[email protected]",
    "message_id_hash": "GBIKLGFWH32XYTS6EGKB7PUB4QS3P7FP",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/XDFV5EPAJXHG6BUTID2NPCJ5VGT6RH7Y/?format=api",
    "sender": {
        "address": "seb (a) wintek.com",
        "mailman_id": "334792c18f7f4268a405ca1814e93bd0",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/334792c18f7f4268a405ca1814e93bd0/emails/?format=api"
    },
    "sender_name": "Stephen  E. Belter",
    "subject": "Re: [amsat-bb] If you have just one choice, what is the best polarization to receive LEO Birds?",
    "date": "2015-11-18T19:30:29Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MUVUBC3H5VTMAQX4OWQSWGYW7KOJGRU3/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Vinicius,\n\nThe worst orientation is to have the elements of your Yagi parallel to a\nmetal mast.  So unless you¹re using a fiberglass mast or cross-boom, mount\nthe antenna so that the elements are perpendicular to the mast.\n\nIf you¹re mounting the antenna on top of a vertical mast, orient the\nantenna so the elements are horizontal.  If you aren¹t using an elevation\nrotor, you may want to slope the boom of the antenna so that it points up\nfrom the horizon by about 15 degrees.\n\nIf you¹re mounting the antenna on a horizontal cross-boom, so that you can\nuse an elevation rotor, orient the antenna so the elements are vertical.\n\nMany of the satellites have a monopole or dipole antenna and are spinning\nor tumbling, so you¹ll have fading regardless of whether you use\nhorizontal or vertical position/polarization.\n\nHope this helps.\n\n73, Steve N9IP\n--\nSteve Belter, [email protected]\n\n\n\n\nOn 11/18/15, 2:08 PM, \"AMSAT-BB on behalf of B J\"\n<[email protected] on behalf of [email protected]> wrote:\n\n>On 11/18/15, Vinicius Leite <[email protected]> wrote:\n>> Hi Folks!\n>>\n>> I'm novice and sorry if this is a dumb question.\n>>\n>> I have a regular 7 Element Yagi UHF antenna, and i would like to know\n>>what\n>> is the best position to receive LEO birds: horizontal, vertical or 45\n>> degrees to the right?\n>>\n>> I've googled this, but i found a lot of different opinions.\n>>\n>> On the field, if somebody tested this options, can please share the\n>>results\n>> with me?\n>\n><snip>\n>\n>I use a hand-held Arrow dual-band yagi for satellites.  During a pass,\n>I have to rotate the antenna around its axis in order to get the best\n>results.\n>\n>73s\n>\n>Bernhard VA6BMJ @ DO33FL\n>_______________________________________________\n>Sent via [email protected]. AMSAT-NA makes this open forum available\n>to all interested persons worldwide without requiring membership.\n>Opinions expressed\n>are solely those of the author, and do not reflect the official views of\n>AMSAT-NA.\n>Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\n\n",
    "attachments": []
}