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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CQ2PGUQZAE5ZVI2OV2BUOC3W5G4SY72T/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "CQ2PGUQZAE5ZVI2OV2BUOC3W5G4SY72T",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/57IZIBJAIGW5MCP4XS4NV3NZUZNNSHMP/?format=api",
    "sender": {
        "address": "vk3jed (a) gmail.com",
        "mailman_id": "e049fcabdd4648088cd7ce227ab7c655",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e049fcabdd4648088cd7ce227ab7c655/emails/?format=api"
    },
    "sender_name": "Tony Langdon",
    "subject": "[amsat-bb] Re: Help sought - amateur satellite service vs  D-star",
    "date": "2009-09-09T06:39:20Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/57IZIBJAIGW5MCP4XS4NV3NZUZNNSHMP/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/OXAK5OG7EQ5SKIAGEHIJNNWQOV6WLAUR/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "At 07:24 AM 9/9/2009, Geert Jan de Groot wrote:\n\n>Background\n>In the Netherlands, 436-440 MHz is secondary to the amateur\n>and amateur sat service. The folk experimenting with D-star\n>on 70cms use a fairly large shift of 9.4 Mhz, resulting in\n>a typical setup of 430.400-430.600 in and 439.800-440.000 out.\n>Unattended stations (like D-star repeaters) do require a special\n>license here.\n\nOK, so what do FM repeater owners do?  Asking that, to see if there's \nany other places the D-STAR systems can be put.  Over here, D-STAR \nrepeater allocations are in the same parts of the bands as FM ones.\n\n>Recently..\n>The D-star community, having fear of not being able to use their equipment,\n>is now proposing to use a shift of 7.4 MHz shift: input ~430.400-430.600,\n>output 437.800-438.000.\n>The output obviously collides with the amateur radio satellite service,\n>but the proposal does not mention this at all, nor does it mention\n>any remedy for this interference, which the amateur radio service\n>would inflict on itself, on a worldwide (at least European) scale.\n\nThis could create significant QRM across Europe, as any satellite \nwith an input on those frequencies and within range of an operating \nD-STAR system would suffer QRM.  Satellites with downlinks in this \nrange would be unusable within the coverage area of a D-STAR system \non the same frequency, though in a lot of cases, Doppler shift would \nallow at least some of the pass to be worked.\n\n>I believe this plan is very poorly thought-out and should be\n>rejected and complained upon on an International scale.\n\nI'm not sure what can be done about the DGPS issue, given the \nrelative status of amateur radio and commercial interests in most \ncountries, but the issue of allocating repeater outputs in a \nsatellite subband is something that goes beyond national borders, \nespecially in Europe, where many countries are very small.\n\n73 de VK3JED / VK3IRL\nhttp://vkradio.com\n\n",
    "attachments": []
}