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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IGM7XZPCFCU6MFJ2O7IYJDN536P3RQ4G/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "IGM7XZPCFCU6MFJ2O7IYJDN536P3RQ4G",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IGM7XZPCFCU6MFJ2O7IYJDN536P3RQ4G/",
    "sender": {
        "address": "wb5rmg (a) somenet.net",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Alan Sieg WB5RMG",
    "subject": "[amsat-bb] Re: ARISS antennae",
    "date": "2008-12-30T18:02:22Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": ">> they are considered to be on the earth-facing surface...\n> Actually, an \"earth facing\" antenna can be confusing to some.\n\nRoger that. A narrow-beamwidth directly under ISS would not serve well.\nI was (in)effectively paraphrasing the cited reports, that observe that the\nprimary antennas are mounted on the (earth-facing) Nadir side, as opposed\nto the (space-facing) Zenith side. For a simple single vertical element,\npointing directly toward earth gives a good view either side, and front/back.\nNot so sure what pattern or beamwidth to expect from the patches.\n\nAs I read it, both WA1 and WA2 have capability to Tx and Rx at the same time,\nbut \"the space station ham shack will install a dual-band, 2 meter/70 cm radio\nand a 70 cm radio that will use the downward/Earth-facing WA1 and WA2 antennas\"\nI would suspect that the cross-band setup uses one to Rx, and the other to Tx.\nWhich might yield a 'deaf-zone' for each, but not in the same place.\n\nPossibly if we dig around the ARISS info, more detail has been provided.\n    (I see that KA3HDO has just posted some new links...)\n\n   Thanks  /;^)\n-- \n  <- Licensed in 1976, WB5RMG = Alan Sieg * AMSAT#20554 ->\n  <- http://www.somenet.net * http://wb5rmg.somenet.net ->\n  <- http://www.linkedin.com/in/alansieg * My 'Day Job' ->\n\n",
    "attachments": []
}