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/HQQVGBEWSDJEGX4LVSNDLPUTKGP24ZJC/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "000001c8980f$889e3460$0301a8c0@master",
    "message_id_hash": "HQQVGBEWSDJEGX4LVSNDLPUTKGP24ZJC",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/HQQVGBEWSDJEGX4LVSNDLPUTKGP24ZJC/",
    "sender": {
        "address": "f.grappi (a) tin.it",
        "mailman_id": "4b7c00748d5b4cff8dcc1d00a899cb5c",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4b7c00748d5b4cff8dcc1d00a899cb5c/emails/"
    },
    "sender_name": "Francesco Grappi",
    "subject": "[amsat-bb]  I:  Re: metal or non metal cross booms",
    "date": "2008-04-06T17:56:25Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi all,\n\nAnother solutions : (I did it)\nMetal cross boom with, at the end of both side, 400 mm. of nylon shaft\nInside. It works great !\n\n73\" Frank\nIW4DVZ\n\n\n\n-----Messaggio originale-----\nDa: [email protected] [mailto:[email protected]] Per conto\ndi kc6uqh\nInviato: domenica 6 aprile 2008 19.05\nA: Prathap Kumar; [email protected]\nOggetto: [amsat-bb] Re: metal or non metal cross booms\n\nSuggestion,\nWood has very good strength, why not place a wood dowel rod inside a pvc \npipe with end caps to keep the weather out?\nTHe wood will offer the support and the pvc will protect the wood from the \nelements.\n\nArt ,\nKC6UQH\n----- Original Message ----- \nFrom: \"Prathap Kumar\" <[email protected]>\nTo: <[email protected]>\nSent: Sunday, April 06, 2008 7:44 AM\nSubject: [amsat-bb] Re: metal or non metal cross booms\n\n\n> Hi\n> I got the thick wall Blue PVC pipes used for plumbing wrapped in \n> fibreglass\n> mat and its been in use for over ten years now.\n> The final OD is now about 40mm.\n> It does support both my cross yagis on the rotator.\n> I am also looking for the fibreglass tube with thick wall and hope to get\n> some here in Bangalore and will keep you informed Gopal.\n> Best 73\n> Pop\n> VU2POP\n>\n>\n>\n>> Gopal,\n>>\n>> A good decision that you made.  A study by Kent, WA5VJB, shows that\n>> only some sensitivity of position between elements on the antenna\n>> boom impacts using a metal crossboom if the antenna is mounted in the\n>> \"X\" confinguration.  My satellite antennas are mounted this way.\n>>\n>> 73 Ed - KL7UW\n>>\n>> At 05:50 PM 4/5/2008, Gopal Madhavan wrote:\n>>>I have experimented with both non-metallic and metallic cross booms after\n>>>reading numerous articles on the subject some years ago. With CP antennae\n>>>mounted in X configuration there seems to be hardly any difference in\n>>>performance. I speak of experiments done when AO-40 was active.\n>>>\n>>>I now use a metallic boom as it gives very good rigidity to mount two CP\n>>>antennae, a small dish for 2.4 GHz, preamps etc. Here in India I do not\n>>>have\n>>>the option to order a good section of fibre glass cross boom any way, and\n>>>so\n>>>had made do with PVC tube wrapped in fibre glass, but it eventually \n>>>sagged\n>>>and I had to periodically rotate it 180 degrees to keep it somewhat \n>>>level.\n>>>\n>>>Gopal VU2GMN\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 \n>>>program!\n>>>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\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 \n>> program!\n>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\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_______________________________________________\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",
    "attachments": []
}