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/KNGEJ2JXTA2QYHIY5H3KFRXTK4MBNQ47/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "360326AC7E944FB3820D3AF180F029FB@KC6UQH",
    "message_id_hash": "KNGEJ2JXTA2QYHIY5H3KFRXTK4MBNQ47",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/SYECFEDG2QGMGDH2ES3NEOBZSHAZFOVP/?format=api",
    "sender": {
        "address": "kc6uqh (a) cox.net",
        "mailman_id": "d9201820d18047e4a2772c86bda5e111",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/d9201820d18047e4a2772c86bda5e111/emails/?format=api"
    },
    "sender_name": "Art McBride",
    "subject": "[amsat-bb] Re: AO-51 - After the Change",
    "date": "2009-12-07T06:31:05Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7Q2IAQZ6ANLSLYQRMFGTAL2ZNYH2NB3G/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/34SYDBQ7DKKDWAHH4HNARTY3322EYDYF/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Clint,\nRotating a linear polarized Yagi in a circularly polarized field should\nresult in less than a few dB of change, no change if the circular antenna is\nperfectly circularly polarized. When using a linear antenna ground effects\nincluding reflections will cause a larger change. Using circular on both\nends will result in less fading from the ground effects and no change in\nsignal for antenna rotation on the S/C side providing the S/C antenna has a\ngood pointing angle. Losses of 22 +dB are reserved for cross polarization of\nantennas H-V and LH to RH.\n\nArt, KC6UQH \n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of Clint Bradford\nSent: Sunday, December 06, 2009 7:15 PM\nTo: Glenn AA5PK\nCc: [email protected]\nSubject: [amsat-bb] Re: AO-51 - After the Change\n\n >> ... I think the handheld ops have less trouble with the polarity  \nswitching because tend to compensate more quickly with a twist of the  \nwrist ...\n\nThat phenomenon is not evident now - nor has it ever been - for me on  \nAO-51.\n\nI know the engineers say I am supposed to be increasing or decreasing  \nmy signal strength by 22 or 23db by merely twisting my Yagi 90  \ndegrees. But I have hundreds of witnesses during dozens of  \ndemonstrations who will tell you that when the Yagi is turned 90  \ndegrees, there's no discernible change in the signal.\n\nThis is not a scientific approach to the subject, of course. Just what  \nmy aging ears can hear.\n\nI have heard fellow AMSAT members describe AO-51's \"signal fading due  \nto the satellite tumbling in space,\" too. I am not using elaborate  \nequipment, but have no idea what they are talking about.\n\nJust my firsthand observations. Guess I could be wrong ... we are a  \nlittle different - I am told - out hre on the West Coast of the US.\n\nClint Bradford, K6LCS\n\n\n\n\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n__________ Information from ESET NOD32 Antivirus, version of virus signature\ndatabase 4664 (20091206) __________\n\nThe message was checked by ESET NOD32 Antivirus.\n\nhttp://www.eset.com\n\n\n \n\n__________ Information from ESET NOD32 Antivirus, version of virus signature\ndatabase 4665 (20091206) __________\n\nThe message was checked by ESET NOD32 Antivirus.\n\nhttp://www.eset.com\n \n\n",
    "attachments": []
}