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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VW7AKC4UJRADPAYFR27ZZX4URAQAI4UQ/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "VW7AKC4UJRADPAYFR27ZZX4URAQAI4UQ",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/3K2X6T7OZXO4FNYUJJBUA5GBIRPGU3SU/?format=api",
    "sender": {
        "address": "vk4tec (a) people.net.au",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Andrew Rich",
    "subject": "[amsat-bb] Re: [SPAM] Re: Yaesu FT-897 and HRD satellite tracking\tproblem",
    "date": "2007-12-26T22:19:45Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LWKVYMSLCCE5DIE4UPD423W22XY3RLTL/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/O2RLNJKU6ERFNYGIJ4LCDUTXX4XUXRJS/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "did u try changing the baud rate ?\n\n\n\n----------------------------------------------------------------------------\nAndrew Rich VK4TEC\[email protected] <mailto:[email protected]>\nhttp://www.tech-software.net\n\n\n\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]]On\nBehalf Of Dave Matthews\nSent: Thursday, 27 December 2007 6:06 AM\nTo: Simon Brown (HB9DRV)\nCc: [email protected]\nSubject: [SPAM] [amsat-bb] Re: Yaesu FT-897 and HRD satellite tracking\nproblem\nImportance: Low\n\n\nThank you Simon, and I appreciate the response from the guru as I\nappreciate your fine program!\n\nI have tried all of the procedures I could glean from the HRD forum and\nmessages on the pertinent Yaesu group, and eham.  I have grounded,\nbeaded with ferrites, shielded, tried different cables etc., and I still\nget the chuff-chuffing noise that coincides with the black square\nanimation on the upper left of the satellite tracking tool screen.\n\nI have tried different CAT baud rates, and switched from a RS-232\ninterface to a USB interface.  (I still have another more direct USB\nattempt to make after I build the Ham Gadgets interface).  And although\nI presently have a few beads on the CT-62 cable I guess I can add a few\nmore beads and a few more loops through them, but so far there has been\nabsolutely no difference notices with or without the beads.\n\nAdvice on the HRD forums follows yours: 'noise radiating from the CT-62\ncable'.  I don't think it is in this case as I have tested and improved\nthe shielding and added ferrites, etc.\n\nMy experiments suggest that this may be a problem inherent to the rig,\nmaybe losing its control of receiver parameters momentarily as it acts\non the repetitive CAT data.  And finally a user in the Yaesu group\nsuggests that this problem is normal for these Yaesu FT-897/857 rigs and\nsome others.  But that user mentions simply turning off the polling to\navoid the noise.  I want to use the HRD automatic Doppler shift\ntracking, so I need at least some periodic polling to update the rig.\n\nThanks you Simon for your timely response!\nI will keep looking and experimenting.\nDave KI4PSR\n\n\n\n(I would appreciate hearing from any users of an FT-897 or FT-857 who\nare using the satellite tracking tool in HRD with polling to track the\nDoppler shift.  Do you have the same chuff-chuffing?  Did you find a fix?)\n\nSimon Brown (HB9DRV) wrote:\n> Sounds like radiation from the CT-62 cable - try putting a ferrite or\n> two on the cable.\n>\n> Simon Brown, HB9DRV\n>\n> ----- Original Message ----- From: \"Dave Matthews\" <[email protected]>\n>\n>> I have a periodic 'polling?' noise issue with my Yaesu FT-897\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": []
}