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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/FANYEXZWMDEFN4O2NBTYHKZLGWWYQOOP/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "FANYEXZWMDEFN4O2NBTYHKZLGWWYQOOP",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/MOCRZNPYYX6L22HTNN2MOYL5GDX27DJU/?format=api",
    "sender": {
        "address": "ve9qrp (a) gmail.com",
        "mailman_id": "4d6061838db34aba9a1c4722addebfaf",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/4d6061838db34aba9a1c4722addebfaf/emails/?format=api"
    },
    "sender_name": "Bruce Robertson",
    "subject": "[amsat-bb] Re: Frustration",
    "date": "2009-11-30T00:29:27Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MOCRZNPYYX6L22HTNN2MOYL5GDX27DJU/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "On Sun, Nov 29, 2009 at 8:02 PM, Michael Tondee <[email protected]> wrote:\n> I've been trying to get my receive setup going the last few days but I'm\n> having horrible results. I have my 11 element 70cm \"cheap yagi\" back up\n> on the mast and my homebrew SaebrTrack and OR-360  AZ/EL TV rotator\n> system interfaced to SatPC32.\n>  I have an ARR preamp mounted at the mast fed with a seperate 12VDC\n> feed and about a 40 foot run of  JEFA  brand LMR 400. Once I get into\n> the shack there is a bit of patchwork to the cables. I'm using a Yaesu\n> VX3 to receive and due to the SMA connector on the HT and not wanting to\n> strain it I have a 4 foot adapter cable  of  LMR 100 that goes from an\n> SMA to a SO-239. I then have to use a short length of coax with a PL-259\n> to N male to mate up with a N barrel connector connected to my LMR 400\n> coming from outside. Now obviously, I know this isn't optimum and eats\n> up valuable RF and I intend to change it ASAP  but I'm hearing\n> absolutely nothing on AO-51 passes. Not even the hint of signals.\n> I'm thinking with that preamp in the line I should at lest hear\n> something discernible besides noise regardless of the patchwork of\n> cables. Am I off base in thinking this? I did catch just a bit of\n> discernible signal off  SO-50 last night but it was almost overhead.\n>  I'm not a beginner at this but I'm frustrated. Perhaps I'm putting too\n> much faith in the preamp to push the signals through my hodgepodge of\n> adapters and cables? Any thoughts are appreciated.\n> 73,\n> Michael, W4HIJ\n\nMichael --\n\nI think something is quite amiss here, perhaps a connector is bad or a\nbad joint in one of the cables. I bet a couple of hours with a\nvolt-ohmmeter will find the guilty party. Alternatively, you could be\nin a bad noise situation.\n\nBy way of comparison, because of my digital project right now I have a\nvery minimal station, with a 70cm vertical antenna soldered directly\nonto a N-connector. About 10' of LMR400 goes to the preamp, which then\nhas another 100' of cable to my FT-817. AO-51 is not great copy, but I\nknow it is there. Similarly, all the usual cubesats in CW mode, and\nSEEDS (CO-66) with its fine FM signal of cheering Japanese\nschool-children.\n\n(Actually, this got me thinking that SEEDS would make a pretty good\nway of evaluating two side-by-side receiving systems. Pass the\nresulting wav files through a SSTV decoder, and the one with the\nbetter picture wins!)\n\nYou might consider making a very simple vertical antenna, attaching it\nto one end of the preamp with a very small patch cord between it and\nthe radio, and using that as a kind of baseline.\n\n73, Bruce\n-- \nhttp://ve9qrp.blogspot.com\n\n",
    "attachments": []
}