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/3F2FCQVJUEGTF5UT424GZGMRZCGWEJ7Y/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "3F2FCQVJUEGTF5UT424GZGMRZCGWEJ7Y",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/LPNUTKGHWXJYIY2CUB4TFTL4LLTNEH5R/?format=api",
    "sender": {
        "address": "vk3jed (a) gmail.com",
        "mailman_id": "e049fcabdd4648088cd7ce227ab7c655",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/e049fcabdd4648088cd7ce227ab7c655/emails/?format=api"
    },
    "sender_name": "Tony Langdon",
    "subject": "[amsat-bb] Re: Easy to make, low cost omni-directional  antennae",
    "date": "2008-03-27T20:12:00Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LPNUTKGHWXJYIY2CUB4TFTL4LLTNEH5R/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/SLO7OXZV3ARBFT2B6U5M5EO3VD7ZAEFF/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WAEFI4C2NCXXSPG2TK75MWTEAIK6PMGW/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "At 06:17 AM 3/28/2008, Bill Dzurilla wrote:\n\n>Have not tried the Lindenblad.  Not many are using it\n>or talking about it, so I doubt it is all that great.\n>Same for the turnstile.\n\nThe Lindenblad is said to be quite good, but requires a bit more \nmechanical work to build.\n\n>I do far better with a 5w HT and a handheld Arrow than\n>I do with an IC-7000, ARR preamp, and any of the omnis\n>I have tried.  However, unlike some people, I don't\n\nA directional antenna really does improve things on 70cm.\n\n>If you do go omni, get it high enough to be in the\n>clear.  And unless you get a preamp, use very good\n>coax and keep the line as short as possible.  You can\n>get a 70cm receive-only preamp from Ramsey Electronics\n>for $17, but with that you'll need a separate coax\n>line for the 2m uplink, or a duplexer.  The ARR is the\n>cheapest RF switching preamp and it's over $125.\n\nI wouldn't bother with a switching preamp, unless you're planning on \nusing the omni for transmitting (e.g. for working the ISS \nrepeater).  You certainly don't need a switching preamp to work any \nof the Mode J birds, because the uplink is on a different band, and \nyou want full duplex capability if you can have it.  In any case, a \ngood masthead preamp is a must for omnis.\n\n\n>I also homebrewed one of Kent's dual band LEO cheap\n>yagis, see\n>http://www.wa5vjb.com/references/Cheap%20Antennas-LEOs.pdf.\n>It can be built for $10 and it works as good or better\n>than the far more expensive expensive Arrow, although\n\nI have had a lot of success with a homebrew directional \nantenna.  Only reason I would consider an Arrow is for the \nportability as you mention.\n\n>Have not tried this, but I'm almost certain that a\n>cheap yagi mounted at a fixed 20-30 degree elevation\n>and rotated with an old TV rotator will be less\n>expensive and give substantially better results than\n>any omni, even an omni with a preamp.\n\nI have heard this can work well, though I've never tried it.  You \nwill want to make sure that the Yagi only has moderate gain, as you \nwill need a fairly wide pattern, so that the satellite can still be \non the edge of the main lobe at high elevation.\n\n73 de VK3JED\nhttp://vkradio.com\n\n",
    "attachments": []
}