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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ZQY7OXYIJJWZIEMGBRWWIRRFLRBULKSC/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "ZQY7OXYIJJWZIEMGBRWWIRRFLRBULKSC",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/CQG765U7RNMFBRKSUBWF3GNKVL6OXWI6/?format=api",
    "sender": {
        "address": "hlong (a) btinternet.com",
        "mailman_id": "95c8962a1f3947d39456ace6d175b1cc",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/95c8962a1f3947d39456ace6d175b1cc/emails/?format=api"
    },
    "sender_name": "Howard Long",
    "subject": "[amsat-bb] Re: Foxdelta ST-2 / LVB Tracker",
    "date": "2013-03-02T10:48:44Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CQG765U7RNMFBRKSUBWF3GNKVL6OXWI6/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hello Kyle.\n\nHave you tried talking to Foxdelta themselves?\n\nSadly, Foxdelta chose to take the LVB Tracker and make it their own without\nthe decency of asking either AMSAT or me first, and therefore AMSAT does not\nbenefit one iota from that.\n\nI donated the IP for the LVB Tracker to AMSAT some years ago. Indeed, if you\nreally want to save money, you are welecome purchase the parts yourself and\nbuild it up the information has always been in the public domain. However it\nwas never intended for a third party such as Foxdelta to pinch the IP for\ntheir own personal or commercial gain.\n\nThe 0.9 firmware is on my website together with a programming tool, you do\nnot need any Microchip development tools. That firmware has been working for\nmany years now in certainly hundreds if not thousands of LVB Trackers.\nHowever I don't think that's your problem. Much more likely is that you have\na grounding problem. There needs to be a _very_ low impedance ground return\nfrom the rotator to the PIC's ground or else the ADC will provide erroneous\nvalues. Typically this should be the screen of the cable.\n\nIf you're sure it's my firmware doesn't work with your Foxdelta hardware,\nagain I really do suggest that you should be discussing that with Foxdelta.\n\n73, Howard G6LVB\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On\nBehalf Of K&R Yoksh\nSent: 02 March 2013 04:20\nTo: [email protected]\nSubject: [amsat-bb] Foxdelta ST-2 / LVB Tracker\n\n\nHello,\n\n I have a ST2 interface, and am wondering if anyone else is using a\nnon-Yaesu rotator? I have a Yaesu G500a for elevation, and a  CDE/Hygain Ham\nII for azimuth. This setup worked well with my Kansas  City Tracker board,\nand the Yaesu G500a part of the system works PERFECT.\n\n The trouble is, no matter what software I use, or even if I manually  issue\npointing commands via serial terminal, the ST2 will stop my rotator too\nearly, resulting in offpointing by about 20 degrees. I am  using the same\nvoltage divider that I used on my KCT, so the ST2 is  seeing a 0-5v reading\nfrom the azimuth rotor POT. The LCD display  matches the analog display\nwithin a degree, so the ST2 knows correctly  where the azimuth rotator is\naimed.\n\nMy PC is communicating with the ST2 perfectly, I can see the display  on the\nLCD of where the rotator should stop (say 300 degrees) but it  will actually\nstop at 280 or 320 for example. Unlike my KCT, the ST2  will only make one\nattempt to aim. The KCT would stop the rotation,  let the rotators and\nantennas settle for a second, then fine tune  again if neccessary.\n\n I believe that this can be resolved by changing the sample rate or\nsomething else very minor. I've found the source code, and even tried  twice\nto contact the author. I guess that because I didn't buy his LVB  Tracker,\nhe refuses to answer my emails? Not everyone has a pile of extra money\nlaying around to donate to Amsat. I've donated in the past (back when the\neconomy was in much better shape), but I cannot afford to right now, so I\nbought the Foxdelta ST-2 rather than the \"genuine\" LVB Tracker.\n\n I have tried many nights to compile the source, even without making  any\nchanges. MPLAB says I need a C compiler, etc, and I've tried  everything I\ncan think of to add one.\n\n I even bought an extra PIC for testing, etc, and put the .09 firmware  on\nit, so now I have two PICs, one with 0.7 and one with 0.9. Both  versions do\nthe very same thing.\n\n Can anyone help? I'd like to be able to release a new version of the  HEX\nfile for the next guy in this situation. I really don't think it's\nnecessary for me to sell my Ham II and buy a Yaesu rotator for this to\nwork.\n\n73 and thanks for any suggestions.\n\nKyle\nK0KN\nOlathe, KS\n\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": []
}