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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WRN2WUPQTFPUQ2QIY3UKLINXEPT5TGRA/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "WRN2WUPQTFPUQ2QIY3UKLINXEPT5TGRA",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/UU3UTYIOAUAJ4LD6WM5ACBBXMW2WZSCK/?format=api",
    "sender": {
        "address": "ko6th_greg (a) hotmail.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Greg D.",
    "subject": "[amsat-bb] Re: Cross boom question",
    "date": "2009-07-25T22:24:26Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CQNTI4VAA4ODOKXO3QHRCMHLY3UZRFYX/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nWooden pole for me.  Just a regular closet pole from the lumber yard.  I've never been impressed by the structural qualities of plastic pipe, and putting a wooden dowel up the middle of one still leaves much of the structural responsibility with the plastic on the outside.  So, why not make it all wood?  Heck, if it can support my wife's wardrobe, it should be able to handle a couple of antennas :-).  How long of a span do you need?\n\nGreg  KO6TH\n\n\n> From: [email protected]\n> To: [email protected]; [email protected]; [email protected]\n> Date: Sat, 25 Jul 2009 17:14:20 -0500\n> Subject: [amsat-bb] Re: Cross boom question\n> \n> \n>  Amen: I have been aluminum cross booms for several years now.\n>            Jerry w0sat\n> \n> -----Original Message-----\n> From: [email protected] [mailto:[email protected]] On\n> Behalf Of Jim Jerzycke\n> Sent: Saturday, July 25, 2009 4:36 PM\n> To: [email protected]; Kevin Groth\n> Subject: [amsat-bb] Re: Cross boom question\n> \n> This has been gone over a zillion times.\n> Short answer; Mount them in an \"X\" configuration and don't worry about it.\n> http://www.g6lvb.com/fibermetalboom.htm\n> \n> --- On Sat, 7/25/09, Kevin Groth <[email protected]> wrote:\n> \n> From: Kevin Groth <[email protected]>\n> Subject: [amsat-bb]  Cross boom question\n> To: [email protected]\n> Date: Saturday, July 25, 2009, 1:47 PM\n> \n> I have just finished building a set of 2m and 440mhz circular polarized\n> beams to work the birds.  (tired of standing in the heat and cold outside!)\n> I tried to save a little bit of money by building a wood dowel inserted into\n> a sched 40 uv resistant pipe.  I hung the beams on either side of the cross\n> boom and it sags way too much and is ugly.  I thought about using some\n> eyebolts and some nylon cording for support to the vertical mast, but I'm\n> trying to keep everything as clean as possible for the neighbors.  I would\n> really rather not have to purchase a fiberglass satellite boom commercially,\n> but if I have to, I will.   \n> \n>  \n> \n> I have a bunch of 1.75\" aluminum pipe that would be more than able to\n> support most anything I plan to add to the antenna collection in the future\n> (1.2 and 2.4 ghz).  My question is how much of a difference would it make if\n> I mounted the 2m and 440 beams in an X position to the aluminum beam?  I\n> have read some short answers that it would minimize the swr issue, but\n> haven't really found an answer that I am comfortable with.  Also, how would\n> that effect a later addition like a 1.2 or 2.4 ghz antenna.?  My current\n> antennas are a KLM 2m-14c and a 435-40cx, both circular polarized and\n> switchable RH and LH polarization.  Does anyone have any experience with a\n> metal crossboom?\n> \n>  \n> \n> Thanks!\n> \n> Kevin\n> \n> N9EME\n> \n> Fort Worth, TX\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> 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> _______________________________________________\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_________________________________________________________________\nBing™ brings you maps, menus, and reviews organized in one place. Try it now.\nhttp://www.bing.com/search?q=restaurants&form=MLOGEN&publ=WLHMTAG&crea=TXT_MLOGEN_Local_Local_Restaurants_1x1",
    "attachments": []
}