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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UMU75TUYM4V6VT6CRUGFVJ6YPNALNZYT/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "UMU75TUYM4V6VT6CRUGFVJ6YPNALNZYT",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/NKYGJ5LPDWSDVCRO53CP6IQCTFCOAOKY/?format=api",
    "sender": {
        "address": "seb (a) wintek.com",
        "mailman_id": "334792c18f7f4268a405ca1814e93bd0",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/334792c18f7f4268a405ca1814e93bd0/emails/?format=api"
    },
    "sender_name": "Stephen  E. Belter",
    "subject": "[amsat-bb] Re: Should I abandon full doppler correction?",
    "date": "2011-07-25T03:16:54Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5X645CBZV6HWMD4LYZXEWZZGXWOICG2K/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/T25J7HNBM6J7VFMYCNEXP4DLSNBZN3YF/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "As far as Field Day and full Doppler correction goes:\n\n>From listening and contacting them during FD, W5MSQ uses full Doppler correction.  Andy MacAllister, W5ACM could tell you for certain.  They finished first in 2007, 2008, and 2010.\n\nJohn Papay, K8YSE is part of the W8DXA satellite FD team, and they use full Doppler correction.  They finished first in 2009 and third in 2010.\n\nI'm part of the satellite FD team for W9LDX, and we use full Doppler correction.  We finished first in the AMSAT contest in 2006, and second in 2007, 2008, 2009, and 2010.  (The 2011 results have not been published yet.)\n\nSo for the AMSAT FD contest, full Doppler is the norm for the teams near the top of the standings.\n\n73, Steve N9IP\n--\nSteve Belter\n\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On Behalf Of Jim Sanford\nSent: Sunday, July 24, 2011 5:51 PM\nTo: Tom Schaefer, NY4I\nCc: Amsat BB\nSubject: [amsat-bb] Re: Should I abandon full doppler correction?\n\nAll:\n\nFor what it's worth, I think I prefer the manual doppler correction on the highest frequency, which can be done manually.\nFull doppler essentially requires constant computer control of both tx & rx frequencies, AND a whole lot of accurate data.\n\nI've had similar experiences at Field Day, and was able to pick out the guys doing full doppler, and rarely able to work them.\n\nFor whatever my opinion is worth....\n73,\nJim\[email protected]\n\n\nOn 7/24/2011 5:17 PM, Tom Schaefer, NY4I wrote:\n> Hi all,\n>\n> I just tried a nice pass on FO-29. I heard K9CIS on CW and W5BK from Texas. In both cases, while I am using full doppler correction with my 9100 and MacDoppler, I suspect they are leaving the transmit frequency fixed as they both changed frequency. K9CIS on CW was quite extreme in the Doppler shift. I know that this is a by-product of me using full doppler to listen to stations that are not, but it seems that the majority of the stations I hear are NOT using flu doppler. I have asked this question before, but it seems to be happening more frequently.\n>\n> Should I abandon full doppler correction? Another less black-and-white step is that if I hear a station moving to adjust my settings so I am not doing full doppler.\n>\n> Has anyone ever taken a survey to see how many satellite users actually use full doppler. Am I assuming more guys use computers and anyone of the multiple ways to do computer control that have ben available for years? Does anyone ever talk about this in AMSAT circles? Sort of like the encouragement one gives to people afraid of LOTW to try it? \"Computers in the shack...NEVER!\" I exaggerate but it seems that way. Then again, being a computer person and having computer capable rigs I realize I am skewed in my expectations. I know there are guys working with old 271/471 pairs or even the old FT726 out there. Great radios and a simple way to do it, but even they have ways to do full doppler control and they have been out for 20 years.\n>\n> Thanks,\n>\n> Tom\n> Tom Schaefer, NY4I\n> [email protected]\n> EL88pb\n> Monitoring EchoLink node KJ4FEC-L 489389 DSTAR Capable  APRS: NY4I-15\n>\n>\n>\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_______________________________________________\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": []
}