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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IMAYQPK5F6ESHYE5PAXJEG4GU2VBHEBU/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "IMAYQPK5F6ESHYE5PAXJEG4GU2VBHEBU",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IMAYQPK5F6ESHYE5PAXJEG4GU2VBHEBU/",
    "sender": {
        "address": "aa2tx (a) comcast.net",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Anthony Monteiro",
    "subject": "[amsat-bb] Re: [sarex] Re: Re: ARISSat-1 and FOX social media fundraising",
    "date": "2010-11-19T11:41:18Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Samudra,\n\nWe haven't worked this out yet.\n\n73,\nTony AA2TX\n\n---\nAt 06:21 PM 11/18/2010, Samudra Haque wrote:\n>Can I ask how many solar panels will be unfurled from the 1U chassis\n>which has an internal dimension of approx. 87 x 87 mm? Will it be a\n>symmetric or assymetric arrangement? Will the antenna be embedded into\n>the extended solar panel?\n>\n>73 de N3RDX\n>\n>Samudra\n>\n>On Thu, Nov 18, 2010 at 4:48 PM, Anthony Monteiro <[email protected]> wrote:\n> > Hi Trevor,\n> >\n> > The current plan is to use the same frequency for the FM downlink\n> > and the telemetry beacon. The IHU will have sufficient memory capacity to\n> > hold at least a days worth of data so the beacon would be turned on once\n> > a day for a telemetry dump and then back to transponder mode.\n> >\n> > And yes, we plan to use forward error correction on the beacon so\n> > that it will be bulletproof. It will likely be a different format\n> > than the one used on ARISSat-1 since we want a higher bit rate and Fox\n> > will be passive magnetic stabilized (like AO-51) so it will not suffer\n> > from tumble fading like ARISSat might and the interleave length does not\n> > need to be as long.\n> >\n> > Thanks for your interest!\n> > Tony AA2TX\n> > ---\n> >\n> > At 03:35 PM 11/18/2010, Trevor . wrote:\n> >>--- On Thu, 18/11/10, Andrew Glasbrenner \n> <[email protected]> wrote:\n> >> >\n> >> \n> http://www.amsat.org/amsat-new/images/fck_images/2010_President_Annual_Report%281%29.pdf\n> >> >\n> >> > Slides 14 through 17\n> >>\n> >>Hi Drew,\n> >>\n> >>Really glad to see that AMSAT-NA is going ahead with the FOX project.\n> >>\n> >> >From my point of view potentially the valuable part of FOX is the\n> >> deployable Solar Panels.\n> >>\n> >>This has never been done on a 1U CubeSat and should significantly\n> >>increase the power available. A space proven system to deploy panels\n> >>on a 1U sat will benefit not just AMSAT-NA for future projects but\n> >>the entire CubeSat community.\n> >>\n> >>Unfortunately I wasn't able to get to the symposium so perhaps you\n> >>could clarify one of the slides for me.\n> >>\n> >>Slide 16 mentions both a U/V FM transpoder and a V telemetry beacon.\n> >>Is the telemetry beacon on a seperate frequency from the transponder\n> >>so both can run at the same time ? Also is the beacon using the\n> >>robust narrow band, high efficiently, BPSK system developed for ARISSat-1 ?\n> >>\n> >>I look forward to the launch of ARISSat-1 in the New Year with its\n> >>first ever space deployment of a SDX linear transponder, with that\n> >>and the Slow Scan TV, its sure to be very popular.\n> >>\n> >>73 Trevor M5AKA\n> >>\n> >>\n> >>\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> > 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": []
}