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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/EIER4LU6ZSGPGKFZ2VPQN67ZSUQLYIJ7/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "EIER4LU6ZSGPGKFZ2VPQN67ZSUQLYIJ7",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/HM6I7EWKNIL2APQME4RBCJGD3HMSHC2Y/?format=api",
    "sender": {
        "address": "kq6ea (a) verizon.net",
        "mailman_id": "d2ef86d749ee450c8ad9ffc9f2e15cad",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/d2ef86d749ee450c8ad9ffc9f2e15cad/emails/?format=api"
    },
    "sender_name": "Jim Jerzycke",
    "subject": "[amsat-bb] Re: GPS Time observation",
    "date": "2012-02-02T21:02:20Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CI3JYHT7MXH7PFAC2YZOL336NXRJLZVJ/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Ahhh...., yes. \"UTC\". That's what I meant by \"Earth Time\".\n\nNeed...more...coffee...\n\n73, Jim\n\nOn 02/02/2012 08:44 PM, jmfranke wrote:\n> The difference between GPS time and UTC is adjusted as necessary. The \n> adjustments come in the form of leap seconds and are added when needed \n> at the end of June or December. The difference between GPS time and \n> UTC is currently 15 seconds. There will be a leap second added this \n> coming June 30. What is being seen is the casual user GPS receiver \n> software does not put a high priority on time display.\n>\n> John  WA4WDL\n>\n> --------------------------------------------------\n> From: \"Jim Jerzycke\" <[email protected]>\n> Sent: Thursday, February 02, 2012 3:18 PM\n> To: <[email protected]>\n> Subject: [amsat-bb] Re: GPS Time observation\n>\n>> I think this has something to do with \"GPS Time\" vs \"Earth Time\".\n>>\n>> IIRC, GPS time doesn't take into account the Leap Seconds that have \n>> been added to Earth time since the first GPS satellites have been \n>> launched. I think some of the newer receivers can compensate for \n>> this, but I'm not sure.\n>>\n>> It's been about 14 years since I last worked in the GPS industry, and \n>> I'm a bit rusty on all the new stuff!\n>>\n>> 73, Jim  KQ6EA\n>>\n>> On 02/02/2012 04:57 PM, George and Cheryl Abbott wrote:\n>>> I'm not sure about GPS,but I have noticed that the clock on our \n>>> cable box is off by up to 4 seconds at times.Customer service was \n>>> not aware or concerned when I let them know.\n>>>\n>>> -----Original Message----- From: Vince Fiscus, KB7ADL\n>>> Sent: Thursday, February 02, 2012 10:28 AM\n>>> To: [email protected]\n>>> Subject: [amsat-bb] GPS Time observation\n>>>\n>>>\n>>> I have an old GPS unit, a Magellan explorist 210.  It's fairly accurate\n>>> determining position. After it has acquired about eight to ten \n>>> satellites\n>>> the position error averages between 20 to 35 feet.   Now the \n>>> question, the\n>>> other day I was looking at one of the information pages the unit can\n>>> display and on it, it gives the time in UTC. Just for fun I thought \n>>> I would\n>>> see how close the time was to WWV.  I was surprised to see the unit was\n>>> between one to four seconds off over various tests compared to WWV.  IS\n>>> this typical of all GPS units or do some display the time of day more\n>>> accurately?\n>>>\n>>> KB7ADL\n>>>\n>>> _______________________________________________\n>>> Sent via [email protected]. Opinions expressed are those of the \n>>> author.\n>>> Not an AMSAT-NA member? Join now to support the amateur satellite \n>>> program!\n>>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>>> _______________________________________________\n>>> Sent via [email protected]. Opinions expressed are those of the \n>>> author.\n>>> Not an AMSAT-NA member? Join now to support the amateur satellite \n>>> program!\n>>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>>>\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 \n>> program!\n>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>>\n>\n>\n\n",
    "attachments": []
}