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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YOUQVGVVKYHE32IOFYMAV6SIERNNNLLE/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "YOUQVGVVKYHE32IOFYMAV6SIERNNNLLE",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/LOVSEIML3CAGHUDIQZ7QNBRX4KJ63HA5/?format=api",
    "sender": {
        "address": "cjhurst (a) bigpond.net.au",
        "mailman_id": "4cf6aa7c5aa149e88ce967dd5e9e2913",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4cf6aa7c5aa149e88ce967dd5e9e2913/emails/?format=api"
    },
    "sender_name": "Colin Hurst",
    "subject": "[amsat-bb] Re: Has the ARISSat-1 CW-2 frequency shifted?",
    "date": "2011-09-01T00:46:23Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/46TD7YGZGCV4GZGAC5HWWJ2INCNHHGZL/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Alan,\nFor the last week or so we have been observing it come out of eclipse.\nI have noted at worst, a very slow 40Hz shift as ARISSAT1 warms up.\nI update the TLE's every day for ARISSAT1 (possibly an overkill) but it is\nalways within +/-20 Hz at AOS that you quoted.\n73\nColin VK5HI.\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of Alan P. Biddle\nSent: Thursday, 1 September 2011 07:01\nTo: 'Ronald G. Parsons'; 'AMSAT-BB'\nSubject: [amsat-bb] Re: Has the ARISSat-1 CW-2 frequency shifted?\n\nRon,\n\nI have been catching a couple of passes a day for TLM since deployment.\nAfter the initial tweaks, is has been consistently within +/ 20 Hz of the\npredicted value.  I haven't seen a large jump, though I did tweak it down 20\nHz yesterday to refine my initial values.\n\n73s,\n\nAlan\nWA4SCA\n\n\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of Ronald G. Parsons\nSent: Wednesday, August 31, 2011 4:15 PM\nTo: AMSAT-BB\nSubject: [amsat-bb] Has the ARISSat-1 CW-2 frequency shifted?\n\nA couple days ago, I noticed that to get a 500 Hz signal for CW-2 (nominally\n145.9190 MHz) to decode the BPSK-1000 signal, I had to change the\nunDoppler-shifted frequency on my USB receiver from 145.918500 MHz to\n145.918280 MHz, a change of 220 Hz.\n\nThis new value have been consistent over a couple days of careful watching.\nI don't believe it to be an error in the keps or clock as it has been true\nboth at the beginning and end of the pass. My receiver has been on for over\na month, so unless a component changed value suddenly, ....\n\nHas ARISSat-1 changed, has my radio changed, or does only my hairdresser\nknow for sure?\n\nRon W5RKN\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n",
    "attachments": []
}