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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/3NYGJWJQO4YGMYGDXNROTY6WWDUBSFUT/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "3NYGJWJQO4YGMYGDXNROTY6WWDUBSFUT",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/WTLEG3NTWOT3KVHNQ2PGTP6UL3AIIF6Q/",
    "sender": {
        "address": "diehl.mike.a (a) gmail.com",
        "mailman_id": "fb66b52d8e334c70baa2d934e419bb39",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/fb66b52d8e334c70baa2d934e419bb39/emails/"
    },
    "sender_name": "Mike Diehl",
    "subject": "Re: [amsat-bb] True bearings vs. magnetic",
    "date": "2018-06-03T18:41:37Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WTLEG3NTWOT3KVHNQ2PGTP6UL3AIIF6Q/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "You bring up an important point regarding beam width. The link provided shows a 3 element with 100° width so you need to be within 50° of either side of center to be inside the front lobe. \n\nNow consider a V/UHF beam that can have 3-5x as many elements. Say for instance you’re at 30° beam width or 15° to either side of center. If the station is off by 12.5° they are almost completely outside the lobe. \n\nWith my 5x9 Arrow I notice just how much more accurate I need to be when pointing over the 3x7 Arrow II if I want maximum gain. \n\nThat said, just how important it is to be true north versus magnetic north is going to depend on your beam width. \n\n73,\nMike Diehl\nW8LID\n\n> On Jun 3, 2018, at 12:10, John KI4RO <[email protected]> wrote:\n> \n> I don't think its all that critical based on what I see here:\n> \n> http://www.dx-antennas.com/Yagi3.htm\n> \n> \n> 73\n> John KI4RO\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions expressed\n> are solely those of the author, and do not reflect the official views of 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",
    "attachments": []
}