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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q62X2LCK5UULHWRS5OP7NSGGLZ7L7EPF/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "Q62X2LCK5UULHWRS5OP7NSGGLZ7L7EPF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/Q62X2LCK5UULHWRS5OP7NSGGLZ7L7EPF/?format=api",
    "sender": {
        "address": "archie.hackett (a) hotmail.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "John Hackett",
    "subject": "[amsat-bb] Re: [eu-amsat] AO-7 report.",
    "date": "2007-07-31T19:03:21Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PBWJTZFD53MQP5ZV4LAYTC6SOOGVNBCH/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q3MJOBX4SHXMPMHTJALOAKRLDA6W63ZN/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Drew,\n         It is my understanding from recent correspondance with W3GEY/VK3GEY \nJan King ...\n(Jan 'built' AO-7) ... and earlier correspondence with N1JEZ Mike Seguin \n(AO-7 control operator) when I first posted the mail re: the timer last year \n.... that the timer is completely random when the satellite comes out of \neclipse and since there are no imminent occurances of eclipse as far as I \ncan see, I assume the mode will not change unless anything 'ontoward' occurs \nto upset the electronics.\n\nHigh power *can* affect how the control systems behave ... (obviously, I'm \nnot going to mention the command parameters or the power required).\n\nIf my assumption is wrong, I stand corrected. In either case, listening to \nthe regular operators will confirm the mode.\n\nThe mode changes can be viewed at ... \n<http://www.planetemily.com/ao7/stats2.php>\n\nThe predected eclipse chart at ... \n<http://www.planetemily.com/ao7/Eclipse.php>\n\nPerhaps other operators will obtain different conclusions from the above \npredictions.\n\nOpinions are are invited.\n\nThat is, after all, precisely why we started the EU-Amsat reflector.\n\nI CC'd this mail to the amsat-bb since the number of Stateside users has \nincreased in the last 2 months and this information may be of interest to \nthem too.\n\n73 John.   <[email protected]>\n...........................................................................................................................................\n\n>From: Andrew Glasbrenner <[email protected]>\n>Reply-To: [email protected]\n>To: [email protected]\n>CC: [email protected]\n>Subject: Re: [eu-amsat] AO-7 report.\n>Date: Tue, 31 Jul 2007 11:18:04 -0400 (GMT-04:00)\n\n>Every time this has happened in the past, several times over the past few \n>years, the 24hr timer has >activated, switching between A and B. There is \n>no reason to expect it won't again.\n>\n>73, Drew KO4MA\n...........................................................................................................................................\n\n>From LA2QAA.\n\n>A study of the AO-7 eclipse charts for the last 3 years shows a progression\n>toward non-elipse orbits in late 2007 - 2008.\n>\n>In effect, this means that AO-7 in all probability will not change mode\n>unless anything untoward happens.\n>\n>It also means that we appear to have a permanent mode-B LEO linear\n>transponder for the forseeable future ... providing operators follow the\n>recommended operating proceedure.\n>\n>Please *do* decrease your power as the satellite approaches TCA to avaoid\n>FM'ing.\n>\n>This not only helps the satellite, it helps the other operators in the\n>passband.\n>\n>Don't be fooled by propagation anomolies. The mode-B transponder is working\n>well and will continue to do so providing the alligators go and play\n>somewhere else. Under normal circumstances you do NOT !! need a lot of\n>power. Please use only the necessary to maintain adequate communications. \n>If\n>you can't copy people adequately, you should improve your receiving\n>capabilities rather than increasing your uplink power ... remember,\n>aluminium is cheap and it's a lot more user friendly to everyone concerned\n>.... with perhaps the exception of your neighbours.\n>\n>For all intents and purposes, AO-7 is a QRP satellite. Please treat it as\n>such.\n>\n>73 John. <[email protected]>\n\n\n",
    "attachments": []
}