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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RPQZM6YQ24CAOVWSZRF6MJQ3DRDEGGYJ/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "RPQZM6YQ24CAOVWSZRF6MJQ3DRDEGGYJ",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/BTJAERGC4FSY6LWONOPCBGAWPYRKL455/?format=api",
    "sender": {
        "address": "8p6sm (a) anjo.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Gus 8P6SM",
    "subject": "[amsat-bb] Re: Newbie in Satellite for Amateur Com",
    "date": "2012-10-11T00:30:06Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BTJAERGC4FSY6LWONOPCBGAWPYRKL455/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GEKZMHXERKGWEM5SHI7ZZ5U2XGUQKHCH/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "On 10/10/2012 02:19 AM, [email protected] wrote:\n> Hi,\n>\n> I'm a newbie for amateur satellite stuff, and I want to gain a\n> deep knowledge and experience in it.\n\nIt's very old and hard to find, but The Satellite Experimenters Handbook \nby Martin Davidoff K2UBC will give you fundamental knowledge on \nsatellites, orbits, tracking, antennas, feedlines, etc.  The book is \nold, but the laws of celestial mechanics haven't changed.\n\n> I have a 2-meter band VHF transceiver handheld radio, and has 5\n> watt for the output power. Can I use the radio to communicate\n> with any satellites that support VHF?\n\nYou will need to operate on two bands, to work satellite.  I can't think \nof any satellites offhand that operate on a single band.  You will use \none band to transmit TO the bird (uplink) and a separate band to receive \nsigs FROM the bird (downlink).\n\nCan you get some 70cm gear?  If you can transmit/receive both VHF 2M and \nUHF 70cm, you can operate Mode-B (70cm UPlink and 2M DOWNlink) or Mode_J \n(2M UPlink and 70cm DOWNlink).  Some birds operate FM, some use a linear \ntransponder for use with CW/SSB.  It's *possible* to run FM through a \nlinear transponder but it's frowned upon because it hits the satellite \nbatteries harder, not to mention bogarts the passband.\n\nFailing this, if you have an HF rig and know CW, you could try AO-7 via \nMode-A (VHF 2M up, HF 10M down).  Put a key across the PTT line of an FM \nrig, disconnect the mic (no modulation of the carrier) and you have a \npoor-man's CW rig on 2M.  Listen to your sigs and hopefully a few \nreplies on your HF rig.\n\n> And please direct me to the resource that I need to start building my\n> first small station. Thank you in advance.\n\nWell, once you have gear for two bands, you will need antennas.  A \nrubber duckie is workable, but far from ideal.  Popular these days are \nsmall, hand-held yagis, of various designs.  But you could experiment \nwith other designs, such as the quadrifilar helix, the turnstile, the \nlindenblad, and so forth.\n\nHow do you wish to operate?  Portable, from all over the place?  From \nyour own back yard?  Out of your shack?\n\n-- \n73, de Gus 8P6SM\nThe Easternmost Isle\n",
    "attachments": []
}