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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BIH65OLEAOBCLY2EJYKVXZ7LJOVF5T5G/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "000d01c7645f$2178bce0$4b78ec04@tpm",
    "message_id_hash": "BIH65OLEAOBCLY2EJYKVXZ7LJOVF5T5G",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/BIH65OLEAOBCLY2EJYKVXZ7LJOVF5T5G/?format=api",
    "sender": {
        "address": "N2OEQ (a) aceweb.com",
        "mailman_id": "e63b1ea442884559874553314efaac46",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e63b1ea442884559874553314efaac46/emails/?format=api"
    },
    "sender_name": "Patrick McGrane",
    "subject": "[amsat-bb]  (no subject)",
    "date": "2007-03-12T04:28:42Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I noticed some spots about satellite beams for fm birds.\n\nAfter 2 years of trying different anrtennas etc, I now have my ideal setup. I tried 3 different homebrew beams. I learned that for a fixed elevation on azimuth rotator, the optimum beam was 7 elements at 10 degrees elevation with a DELTA match on the driven element.\nI have great reception using a hamtronics preamp (lnk-450) on the shack end of a 15 foot run of 9913 coax. The reception is good to great from just a few degrees above the horizon up to the zenith or overhead.\n\nI tried 8 elements with a gamma match but was too sharp with little overhead gain.\nI tried a 7x7 cross yagi fixed at 20 dgrees with minimal success. The horizontally polarized 7 element delta match outperforms it vastly.\nI'm guessing the delta match helps with the higher angles. ( Delta match looks like a triangle at the center of the driven element.)\nConsult the antenna book by ARRL or search for information.\n\nPhoto of antennas at:      http://members.aceweb.com/n2oeq\n\nHope this helps someone.  73, pat\n",
    "attachments": []
}