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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4Q4JB32JDHA5YAIQ54FU4VPW3TNZ64H4/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "4Q4JB32JDHA5YAIQ54FU4VPW3TNZ64H4",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/YYSKLMXDZQNJCKAR2ZUBXRJTM6VC6Q2B/",
    "sender": {
        "address": "w5ggw (a) cox.net",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Gregg Wonderly",
    "subject": "[amsat-bb] Re: Is it 100% impossible to work a satellite below thehorizon?",
    "date": "2011-03-13T04:38:19Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YADD5RMRC4WQX3C6DNPEGKLAILZCTGNC/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "When the RF signal leaves the duct, it doesn't disappear.  It keeps radiating in \nthe direction that it was going, and can successfully reach any altitude \nappropriate for that line of propagation.  The hard part, is then getting the \nreturn path (the downlink freq) to propagate with the same characteristics so \nthat you can actually hear it.  But, it is not impossible at all...\n\nGregg Wonderly\nW5GGW\n\nOn 3/12/2011 6:53 PM, John Geiger wrote:\n> It might have happened before on some of the Mode K satellites, due to F2,\n> but not sure if the other modes would work below the horizon, as getting the\n> conditions right on both bands would be pretty tough.  Tropo wouldn't get\n> high enough into the air to get into the satellite.  Has anyone heard AO7 in\n> mode A when it is below your horizon due to F2 skip extending your range of\n> the satelllite?\n>\n> 73s John AA5JG\n> ----- Original Message -----\n> From: \"Bill Dzurilla\"<[email protected]>\n> To:<[email protected]>\n> Sent: Sunday, March 13, 2011 12:25 AM\n> Subject: [amsat-bb] Is it 100% impossible to work a satellite below\n> thehorizon?\n>\n>\n>> I was giving a presentation at our club meeting called Working DX on the\n>> Satellites and afterwards someone had a good question: is it at all\n>> possible that tropo, skip, or other form of enhanced propagation can enable\n>> a contact via a satellite below the horizon?\n>>\n>> It has never happened to me.  Has it ever happened?\n>>\n>> 73, Bill NZ5N\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",
    "attachments": []
}