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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KIWHRYFAP2QENQUTM3MNMSXFURXNCWNG/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "KIWHRYFAP2QENQUTM3MNMSXFURXNCWNG",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/GOQOYN645SHOTUUHHBDT3MNHIVIDMUZX/",
    "sender": {
        "address": "hartzell (a) gmail.com",
        "mailman_id": "11e371d6dacd43b7a2b3a3c751e6641e",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/11e371d6dacd43b7a2b3a3c751e6641e/emails/"
    },
    "sender_name": "Dave hartzell",
    "subject": "[amsat-bb] Re: Redundant geostaionary birds?",
    "date": "2007-01-30T18:18:14Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GOQOYN645SHOTUUHHBDT3MNHIVIDMUZX/",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TC4U44MA3W6BG5ZRHTAJ3DFUDCFQG6WM/"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Ed,\n\nYou're right, the thread is going nowhere, other than to satisfy some\nintellectual curiosity.  That was established early on in the thread.\n\nWhy not explore potential systems and alternatives, even if they are a dead-end?\n\nThanks for contributing!  ;-)\n\n73,\n\nDave\n\nOn 1/30/07, Edward R. Cole <[email protected]> wrote:\n> Dave and all:\n>\n> I wonder what all of you were thinking?  If a commercial communication\n> satellite were channeled on one of our mw ham bands, then we would be\n> booted off.\n>\n> C-band satellites used approx. 37-MHz wide channels with alternating linear\n> polarity to afford more adjacent channel isolation.  On most of the TVRO\n> units one could manually adjust polarization angle for optimizing the\n> signal.  If you adjusted 90-degrees off then one often got a ghost of one\n> of the adjacent channels.  The feedhorns had a rotating probe with the\n> motor on the backside of the feedhorn.\n>\n> Typically in the mid-1980's these TV sats cost over $100M before launch.\n> Your not going to convince the satellite company to include ham radio in\n> any manner.\n> AS has been hashed out many times previous on this reflector the path loss\n> to the Clarke Belt orbit is prohibitive.\n>\n> This topic is going no-where!\n>\n> 73, Ed - KL7UW\n>\n",
    "attachments": []
}