Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JM2OSJMSOX7FAYQD6UBK3BWJZ63LJXDN/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "003401c96afc$2f0e77f0$981d70cf@clare",
    "message_id_hash": "JM2OSJMSOX7FAYQD6UBK3BWJZ63LJXDN",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/TUD7B474UD6WAWJB4TEWQKVV4NFHYWJS/?format=api",
    "sender": {
        "address": "lcfowler (a) magma.ca",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Clare Fowler",
    "subject": "[amsat-bb] Re: ARISS Antenna Specifics",
    "date": "2008-12-31T03:59:28Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TUD7B474UD6WAWJB4TEWQKVV4NFHYWJS/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Thanks for the info Frank.\n\nWhile the spiral dual L/S band ant may nominially be Left Hand Circular\nit must be highly eliptical otherwise I would not be getting into it at all\nwith 10 watts into my Right Hand Helix antenna array. I have Right Hand\nand Left Hand helix antennas for 70 cm and on AO-51 when I switch\nto the wrong polarity an over S9 signal drops by more than 20 db into the\nnoise.\n\nSo whatever the polarity it is possible to get into ISS on L band\nwith Right Hand uplink although Left Hand should be better.\n\nClare VE3NPC\n\n----- Original Message ----- \nFrom: \"Frank H. Bauer\" <[email protected]>\nTo: <[email protected]>\nSent: Tuesday, December 30, 2008 12:52 PM\nSubject: [amsat-bb] ARISS Antenna Specifics\n\n\n> All,\n>\n> The ARISS L-band/S-band antenna systems are Left Hand Circularly\n> Polarized.\n> There are some good details of the antenna systems in this paper:\n>\n> http://www.amsat.org/amsat/ariss/Papers/Phase%202%20AGM03Final.pdf\n>\n> And this presentation:\n>\n> http://www.amsat.org/amsat/ariss/Presentations/AMSAT%20Symposiums/AMSAT03.pd\n> f\n>\n> Chart 25 of the above presentation shows the antenna locations looking\n> down\n> the axis of the Service Module.  In this picture, the ISS velocity vector\n> is\n> either in or out of the page and Earth is towards the bottom of the page.\n> This assumes they are in the normal Earth pointing mode (which is not\n> always\n> a given).\n>\n> We have some good on-orbit views of the antennas in this set of charts\n> too.\n> Enjoy!\n>\n> I hope this helps.  And thanks for all the interest in ARISS.\n>\n> 73,  Frank, KA3HDO\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",
    "attachments": []
}