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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/22OGDMFRZQZKAKQI2YOR2LNB5M6GBGTC/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "39A8B8EC2CD44978A7D2A5E64E1A58B8@MRHARVEY",
    "message_id_hash": "22OGDMFRZQZKAKQI2YOR2LNB5M6GBGTC",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/XX6NXUKJ3WQTUXXUCZNEMIQEG5PUFFTC/",
    "sender": {
        "address": "tower2 (a) stx.rr.com",
        "mailman_id": "1cd4fee8700c4fad9e518636e9db95c4",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/1cd4fee8700c4fad9e518636e9db95c4/emails/"
    },
    "sender_name": "H. Vordenbaum",
    "subject": "[amsat-bb] Re: 70cm Helicoil Good/Bad expensive?",
    "date": "2011-07-12T12:36:22Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ID63JXPR3FZYMZXRQH7PVZXNATAYU7KG/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Maybe he was thinking of one of these..........\nhttp://va6bc.no-ip.com/jerry_pix/Quadrifilar-helix/quadrifilar_helix_antenna.htm\nhttp://www.dxzone.com/dx23282/quadrifilar-helix-antenna.html\n73, Harvey\nK5HV\n\n\n----- Original Message ----- \n\nFrom: \"Greg D.\" <[email protected]>\nTo: <[email protected]>; <[email protected]>\nSent: Tuesday, July 12, 2011 0:51 AM\nSubject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?\n\n\n>\n> Hi Art,\n>\n> I've got a BBQ Grill too, but used a 3 1/4 turn helix for a feed.   I was \n> able to work AO-40 at apogee with it.  Definitely a nice system.\n>\n> How big is your dish?  I've not seen a Grill antenna much bigger than the \n> one I currently have, and I'm told it's not  big enough for 1.2 ghz (only \n> 30\").  Supposed to need at least 4'.  So instead I built a helix for that \n> band and did some L/S and L/U through AO-51. Then I found a commercial \n> long boom 1.2 ghz yagi at another Ham Swap (gotta keep me away from \n> those!), and replaced the Helix.  But, you know, I don't think the new \n> antenna improved things.  Mechanically, yes, but not RF.  The Beacon off \n> to the West is about the same on either one.\n>\n> Given the lack of S-band on the current birds, I was thinking about taking \n> down the Grill for a while, just to lighten the load on the rotor motors. \n> Maybe put up a Wi-Fi flat panel, just to keep the band open.  But if I can \n> get both 1.2 and 2.4 out of the Grill instead, might that be better?\n>\n> Greg  KO6TH\n>\n>\n>> From: [email protected]\n>> To: [email protected]; [email protected]\n>> Subject: RE: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?\n>> Date: Mon, 11 Jul 2011 21:26:17 -0700\n>>\n>> Greg,\n>> Do not overlook the 2.4 GHz grid dishes. I have successfully added a quad\n>> loop for 23 cm (1.2GHz) and have been pleasantly surprised with the\n>> performance. I have used one for transmit on 2.4 and receive on 1.2 for \n>> ATV\n>> work. A single dish with two microwave bands.\n>>\n>> Art,\n>> KC6UQH\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",
    "attachments": []
}