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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WURVRQKVR5UHIY2BOYIU72BUOZ6GM2IU/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "WURVRQKVR5UHIY2BOYIU72BUOZ6GM2IU",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IOMFIFQQHDYS6T5VJY5OE7HJIANKJPM6/?format=api",
    "sender": {
        "address": "stanw1le (a) verizon.net",
        "mailman_id": "cde59a7de6874af3b354fb231df89b4c",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/cde59a7de6874af3b354fb231df89b4c/emails/?format=api"
    },
    "sender_name": "Stan, W1LE",
    "subject": "[amsat-bb] Re: UHF antenna help",
    "date": "2010-11-30T12:54:35Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IOMFIFQQHDYS6T5VJY5OE7HJIANKJPM6/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hello Larry,\n\nAny terrestrial beacons on 432 MHz to listen to ?\n\nThe + vs. X configuration, no real advantages in satellite comms except \nrain will wash off better with the X config.\nX pol is X pol,  no matter how you rotate the boom.\n\nIf you are planning terrestrial comms, consider the The + config since \nmost terrestrial comms are H polarization.\n\nHave you got your pointing accuracy correct to true north ?\nAny way to verify pointing accuracy,  like with a terrestrial beacon ?\nHave a friend go out with his TX and verify pointing accuracy.\n\nOn a rare occasion coax wears out intermittently, center pins can get \npulled back making poor contact.\nListening to a /B, wiggle the antenna and look for intermittent signals.\n\nAre all coaxial connectors sealed from the weather ?\n\nThe VSWR at 1.5:1 is good, but not spectacular. What did you get before ?\n\nDoes the VSWR change as you wiggle the antenna ?  Should be steady, no \nmatter where you look.\n\nDoes the az/el positioner work ?    does it move ?\n\nStan, W1LE     Cape Cod     FN41sr\n\n\n\n\n\n\n\nOn 11/29/2010 8:14 PM, larry wrote:\n> Good evening,\n>\n>     Name here is Larry, N1MIW. I recently moved to a better (higher) QTH and\n> finally got around to setting up the satellite station \"almost\" like it used\n> to be, but am experiencing some reception difficulties on UHF. I'm hoping\n> someone out here can help me diagnose what I'm doing wrong, or what the\n> problem is. I am using a Yaesu FT-847 which is computer controlled, as well\n> as the Yaesu G-5400 rotator. The antennas are mounted on a solid fiberglass\n> mast only ~17 feet off the ground, and fed with LMR-400. The frequencies are\n> correct for the satellite I want to use.\n>\n>     My problem is with the 436CP30 antenna. I cannot seem to find good\n> results with it since my move - terrestrial or sat related. My SWR is around\n> 1.5:1 at 435MHz, and the polarity switch is working. I tried changing\n> feedlines and removing the pre-amp, but I still cannot seem to make it work\n> correctly. I am trying to receive SO-50 D/L, and VO-52 U/L, but both are\n> just not working like I remember it being before the move. I don't have any\n> broken or mis-aligned elements (that I noticed - I'll look again). The only\n> thing I was looking into was instead of having it placed on the boom in a\n> \"+\" pattern was making it an \"x\" pattern - would that make a difference? I\n> don't remember hearing or reading about that anywhere, so I was looking for\n> your opinion.\n>\n>     On a side note, what's your opinion of this antenna? Like I said, I used\n> to have good luck with it, but I'm not sure what's different, except the new\n> home. Should I get \"horizon\" to \"horizon\" coverage (plus or minus a few\n> degrees)? Oh, I also looped the coax off the back like the manual states,\n> but the improvement is very minimal. I checked the \"jumpers\" at the tuning\n> box, and they seem OK too.\n>\n>     I'm running out of ideas, and any guidance would be appreciated. Thanks&\n> looking forward to working the birds again!\n>\n> 73's... Larry N1MIW\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\n",
    "attachments": []
}