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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q3MJOBX4SHXMPMHTJALOAKRLDA6W63ZN/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "002c01c7d3dd$c8dcdfa0$0200a8c0@Tanguray",
    "message_id_hash": "Q3MJOBX4SHXMPMHTJALOAKRLDA6W63ZN",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/Q62X2LCK5UULHWRS5OP7NSGGLZ7L7EPF/?format=api",
    "sender": {
        "address": "rogerkola (a) aol.com",
        "mailman_id": "8323dbe496014835b5bd2be9b5ff6f66",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/8323dbe496014835b5bd2be9b5ff6f66/emails/?format=api"
    },
    "sender_name": "Roger Kolakowski",
    "subject": "[amsat-bb] Re: [eu-amsat] AO-7 report.",
    "date": "2007-08-01T01:46:30Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/Q62X2LCK5UULHWRS5OP7NSGGLZ7L7EPF/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\" (and)...correspondence with N1JEZ Mike Seguin (AO-7 control operator)\"\n\nIt is possible that Mike has some control over modes on this satellite...\n\nRoger\nWA1KAT\n\n\n----- Original Message ----- \nFrom: \"John Hackett\" <[email protected]>\nTo: <[email protected]>\nCc: <[email protected]>\nSent: Tuesday, July 31, 2007 4:03 PM\nSubject: [amsat-bb] Re: [eu-amsat] AO-7 report.\n\n\n> Drew,\n>          It is my understanding from recent correspondance with\nW3GEY/VK3GEY\n> Jan 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\nyear\n> .... that the timer is completely random when the satellite comes out of\n> eclipse and since there are no imminent occurances of eclipse as far as I\n> can see, I assume the mode will not change unless anything 'ontoward'\noccurs\n> to upset the electronics.\n>\n> High power *can* affect how the control systems behave ... (obviously, I'm\n> not going to mention the command parameters or the power required).\n>\n> If my assumption is wrong, I stand corrected. In either case, listening to\n> the regular operators will confirm the mode.\n>\n> The mode changes can be viewed at ...\n> <http://www.planetemily.com/ao7/stats2.php>\n>\n> The predected eclipse chart at ...\n> <http://www.planetemily.com/ao7/Eclipse.php>\n>\n> Perhaps other operators will obtain different conclusions from the above\n> predictions.\n>\n> Opinions are are invited.\n>\n> That is, after all, precisely why we started the EU-Amsat reflector.\n>\n> I CC'd this mail to the amsat-bb since the number of Stateside users has\n> increased in the last 2 months and this information may be of interest to\n> them too.\n>\n> 73 John.   <[email protected]>\n>\n............................................................................\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...............................................................\n>\n> >From LA2QAA.\n>\n> >A study of the AO-7 eclipse charts for the last 3 years shows a\nprogression\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\nworking\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\nconcerned\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> _______________________________________________\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 program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n\n",
    "attachments": []
}