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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/J7656D6MWREFBUR4LVOFPOH7P6Z7NGDN/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAB+tm0Q6-9MtVnHmiRTjArpcx=XehBpRVrfJSRPxqrJV3C+kwQ@mail.gmail.com",
    "message_id_hash": "J7656D6MWREFBUR4LVOFPOH7P6Z7NGDN",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/TEXZOIGVCIMR5RI7NP64226BJ57JWWQU/?format=api",
    "sender": {
        "address": "sarlabs (a) gmail.com",
        "mailman_id": "19b0286c0a75453c8bf0d10d6985a39e",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/19b0286c0a75453c8bf0d10d6985a39e/emails/?format=api"
    },
    "sender_name": "Amir Findling",
    "subject": "Re: [amsat-bb] Smartphone (compass) apps which show true north?",
    "date": "2018-02-13T20:18:21Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TEXZOIGVCIMR5RI7NP64226BJ57JWWQU/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "In most areas,  the difference between true and magnetic north are of\nlittle consequense for LEO satellite communication.  Now,  this is not the\ncase for terrestrial navigation,  but aiming towards a satellite,  either\nnumber will work and you will be able to correct by listening to the best\nsignal.\n\nThe simple solution is to buy an inexpensive compass.  One more piece to\nschlepp,  but not to big nor heavy. Unless your compass is one where you\ncan change the display,  it will give you the magnetic north. And like I\nsaid,  you really don't  need to know the local declination and do any math\nfor your purpose.\n\nYou can also orient yourself with a map,  matching it to your surroundings.\nThere are many other McGiver ways to find north,  get a compass,  KISS.\n\n-- \n\n73 de Amir K9CHP\n\nARRL, Emergency Coordinator, Onondaga County, NY\nLiverpool Amateur Repeater Club www.W2CM.com\nRadio Amateurs of Greater Syracuse  www.ragsclub.org\nWilderness SAR www.wsar.org (ret.)\nEagle Valley Search Dogs www.evdogs.org (ret.)\n\nOn Feb 13, 2018 15:00, \"Philip Jenkins\" <[email protected]> wrote:\n\n> I'd rather not wade through the process of downloading and installing  the\n> various multitudes of compass apps to see which of them can indicate true\n> north (handy for doing satellite demos when you're not at home, and don't\n> know or don't have the magnetic declination of that location).\n>\n> My phone doesn't seem to have a magnetometer anyway (from the error\n> messages I'm getting when I've tried a few compass apps).\n>\n> Do any of these apps use GPS to show true north, and not just magnetic\n> north (or both)?\n>\n> Philip N4HF\n>\n> P.S. I have an Android phone and tablet, but I'm sure iPhone users could\n> find this info useful as well.\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> 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": []
}