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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/57LPBHH72XBS4YKLL3QJ553C6F5ZA5QF/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "57LPBHH72XBS4YKLL3QJ553C6F5ZA5QF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2WHQTDCVPG3AINAUQM4DVLODLSUM5URW/?format=api",
    "sender": {
        "address": "w3ab (a) yahoo.com",
        "mailman_id": "460885d5cb8b4383aa368244120c3868",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/460885d5cb8b4383aa368244120c3868/emails/?format=api"
    },
    "sender_name": "GEO Badger",
    "subject": "Re: [amsat-bb] What influences LEO propagation?",
    "date": "2019-05-08T21:53:37Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2WHQTDCVPG3AINAUQM4DVLODLSUM5URW/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/N6JG7P7TLFKRFIQLFIU55TSHG2AQOQ3M/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PFLTP2BFFFBMN5UBN3I6SV3466OFDRGU/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hans,\nWhat I believe you are really asking is what effects VHF/UHF propagation. Lighting up a bird is a line of sight connection, not propagation in the classic sense of bouncing off the ionosphere and ground like in HF comms. But, there are atmospheric phenoms that can effect VHF/UHF comms. Tropo ducting, but that is normally for terrestrial comms. Same for sporadic E, which is bouncing signals off of ionized clouds similar to the ionosphere propagation..Think horizontal. \nThen there is weather. Whether or not you have nice weather. Rain, snow, clouds and dust are a few of the things that can effect sat comms.\n---  \n Ciao baby, catch you on the flip side.    \n GEO     \n\n http://www.w3ab.org\n\nTime flies like an arrow, fruit flies like a banana. \n\n    On Wednesday, May 8, 2019, 7:12:57 AM PDT, Hans BX2ABT via AMSAT-BB <[email protected]> wrote:  \n \n The last couple of days the Fox birds haven't been coming in as well as \nbefore. Signal strengths are down, fading has increased and it is almost \nimpossible for me to open them. Now the sporadic E season also has \nkicked off in the last few days, with increased activity here in east \nAsia. Is this a coincidence or do the two have a connection? And are \nthere other factors that influence LEO propagation? I know satellite \ntumbling is one factor that causes fades, but are there also ionospheric \nor atmospheric influences? Thanks for the insight. 73 de Hans (BX2ABT)\n_______________________________________________\nSent via [email protected]. AMSAT-NA makes this open forum available\nto all interested persons worldwide without requiring membership. Opinions expressed\nare solely those of the author, and do not reflect the official views of AMSAT-NA.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb\n  \n",
    "attachments": []
}