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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BXH5GN4XYO5P52ZVHRO4BVBPSFRMAAEX/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "BXH5GN4XYO5P52ZVHRO4BVBPSFRMAAEX",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/I46JPQPLZ3Y4X5KCHE3KRRXCWJFWLWCU/",
    "sender": {
        "address": "jeff (a) mock.com",
        "mailman_id": "3e6583fe71fe4cd39265b500d524214a",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/3e6583fe71fe4cd39265b500d524214a/emails/"
    },
    "sender_name": "Jeff Mock",
    "subject": "[amsat-bb] Re: Easy to make, low cost omni-directional antennae",
    "date": "2008-03-27T14:37:20Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/I46JPQPLZ3Y4X5KCHE3KRRXCWJFWLWCU/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi,\n\nI'm new to satellite stuff and I had essentially the same requirements \nas you.  I live in a dense urban environment so I have more QRM problems \nthan most, limited roof space, and I try to keep a low profile and not \nget the neighbors too excited.\n\nI wound up purchasing two eggbeaters from M2, one for 70cm and one for 2m:\n    http://www.m2inc.com/products/vhf/2m/eb144.html\n\nThey work well, they are well-built, and are great for AO-51, \nISS-digital, and GO-32.  I also wound up getting an ARR masthead preamp \nfor the 70cm eggbeater to compensate for my long feedline to the roof\n    http://www.advancedreceiver.com/page10.html\n\nTo tell you the truth, the two eggbeaters are marginal for me working \nSO-50.  It is just above the noise and I don't feel like I hear it well \nenough to transmit.  If you want to listen for weak signals you might go \nstraight to a directional setup with more gain.  I feel a rotator in my \nnot-too-distant future...\n\nEggbeaters aren't terribly portable.  The copperweld loop is going to \nspring loose when you take it apart and poke someone in the eye, so I \ndon't move them.  For portable I got and Arrow-II handheld 70cm/2m yagi. \nIt's great fun and seems to be popular.  I used it with an old Icom-W32A \nHT on vacation and used it to work AO-51.  It breaks down really small, \nfits in a little bag, and I can put it together in less than 5-minutes:\n    http://www.arrowantennas.com/146-437.html\n\njeff\nAD6EO\n\nGraeme Nelson wrote:\n> Hi all,\n> \n> I'm wanting to make an antenna for \"talking with the birds\", mainly ISS and \n> LEOs.  Thank you to Don ZL1THO and John KB2HSH for the suggestions and \n> encouragement they have already e-mailed me.\n> \n> I have done some more thinking since then and come up with the following list \n> of criteria for the first antenna I make for satellite work:\n> * easy to make\n> * lost cost\n> * omni-directional\n> * good performance, especially for satellite work, without moving it\n> * portable enough that I can pack it into the van when I go on holiday and it \n> won't take up much space (it needs to share the space with all the stuff for \n> my wife and 3 children, as well as me).  It would also be nice to be able to \n> store it in the corner of my office at work if I so desire.\n> \n> When I started looking in earnest last Friday, a ham colleague of mine did a \n> Google search an came across a turnstile antenna that looked promising \n> (http://www.wb8erj.com/turnstile_antenna.htm).  That evening, I noticed the \n> eggbeater on the web site of John KB2HSH (http://kb2hsh.blogspot.com/), which \n> looks nice and easy to build.  I then did some searching and came upon the \n> Eggbeater II by Jerry K5OE (http://members.aol.com/k5oejerry/eggbeater2.htm), \n> arguably a better fixed antenna for satellite use than the original eggbeater. \n>   A while later, I also found the EZ-Lindenblad by Tony AA2TX \n> (http://www.arrl.org/qst/2007/08/monteiro.pdf).\n> \n> I am currently leaning towards the EZ-Lindenblad (for 2m) and a parasitic \n> Lindenblad (for 70cm ... when I get hold of the design; I intend to e-mail \n> Tony about it if/when I go ahead with the EZ-Lindenblad).\n> \n> How do these antennae compare performance-wise?  Am I leaning in the right \n> direction (EZ-Lindenblad), or should I be looking at something else?  Your \n> input would be much appreciated.\n> \n> TTFN.,\n> Graeme\n> ZL2GDN\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": []
}