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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/EEHGGVKEK4CAMI3JEI77NZJHKOKCE4TO/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "EEHGGVKEK4CAMI3JEI77NZJHKOKCE4TO",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/EEHGGVKEK4CAMI3JEI77NZJHKOKCE4TO/?format=api",
    "sender": {
        "address": "ve9qrp (a) gmail.com",
        "mailman_id": "4d6061838db34aba9a1c4722addebfaf",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4d6061838db34aba9a1c4722addebfaf/emails/?format=api"
    },
    "sender_name": "Bruce Robertson",
    "subject": "[amsat-bb]  Free Ham Satellite!",
    "date": "2008-04-07T18:40:41Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/THGRK2Q6US5VWKIKATO4DWLBGHASD6I4/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "There is a group that is willing to give we amateurs a LEO satellite\nwith mode-B linear transponder on board and at no cost to us! The only\ncatch is that they hope we will give them our help in collecting\ntelemetry from their experiment for the first three months of the\nbird's life. Does this sound too good to be true?  Well, in fact, not\nonly is it true, but the satellite is due to launch in only two weeks!\n\nFor those who haven't been following the story of the Delfi-C3\nsatellite, that's exactly the deal that these researchers from Holland\nare offering us. It's the sweetest opportunity in a long time, and\nwe'd be wise to respond with an overwhelming response. If we do, we'll\nmake it clear to the myriad cubesat developers that, by leaving some\ncommunications hardware for us to work with after their experiments\nend, they can be sure of our full support in collecting telemetry.\n\nDelfi-C3 matters greatly to us for two other reasons. First, it is the\nfirst time that amateur voice communications equipment has flown in\nthe inexpensive 'cubesat' form-factor. If Delfi shows how this can be\ndone, we can expect other groups to follow in their path. Delfi-C3 is\nsized 30x10cm, a stack three times the size of the usual cubesat.\nMaybe the software-defined transponder concept could miniturize our\nhardware to the point that we could get a ham transponder into an even\ncheaper 20x10 cubesat, making it even more affordable for local groups\nto undertake. Secondly, Delfi-C3's experiment pertains to solar panel\ntechnology, something we should all hope progresses to give us more\nwatts in space.\n\nIf you've been lukewarm on cubesats because you think they're not\n'real satellites' or if you're in the doldrums because the satellite\nindustry seems to be keeping us from afordable launches, here's your\nchance to fix things, at least on the LEO side:\n\n1. Ensure your 2m downlink station is working well. You'll probably\nneed a yagi to collect telemetry. Get that  low noise preamp installed\non the mast.\n\n2. Ensure that your radio/souncard interface is working well. Test\nthis with some software APRS packet decoding, for example.\n\n3. Get a software 1200 bpsk demodulator. The java program from the\nlead developer of Delfi-C3 will probably work:\nhttp://home.casema.nl/b.ubbels/Warbler.htm\nthen test it with the audio files available there. You might need to\nfiddle with the 'stereo mixer' settings in your Win32 machine to get\nthe WAV file to play back into the computer. You'll want to download\nthe RASCAL software from the delfi-c3 people when it is available.\n\n4. Join the cubesat chat rooms during and after the launch to help\nthese projects identify their birds and apply the right TLEs. This is\nhigh drama, and its great fun to see just how good at this stuff\npeople like Mineo and Mike are.\n\n5. Collect telemetry! And help out the other cube projects, too, while\nyou're at it.\n\nSome of you with really great HEO-class stations can use them to great\neffect here.\n\n73, Bruce\nVE9QRP\n",
    "attachments": []
}