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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TCY5XQ3TAKNHTJBOGAATGD75IXLWQRNV/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "TCY5XQ3TAKNHTJBOGAATGD75IXLWQRNV",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/BKP4VHYLXTVB2OEO4LGAQZW5YDFWGIET/?format=api",
    "sender": {
        "address": "JamesDuffey (a) comcast.net",
        "mailman_id": "16d2718d7d4a47dca8f564d867aacfe2",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/16d2718d7d4a47dca8f564d867aacfe2/emails/?format=api"
    },
    "sender_name": "James Duffey",
    "subject": "[amsat-bb] Re: Tuning",
    "date": "2009-04-19T02:18:08Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BKP4VHYLXTVB2OEO4LGAQZW5YDFWGIET/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LXJJE2FG2LHWT3RPWD6UAR2EJ5XE45VF/?format=api"
    ],
    "votes": {
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        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Before the advent of computer Doppler tuning compensation, the  \nconvention was to tune the radio on the highest band as that is where  \nthe doppler is the largest and to leave the other one alone as much as  \npossible. That is not a perfect solution as different stations in the  \nfootprint see different Doppler shifts and it is usually unavoidable  \nto tweak both radios. But you can generally save yourself a lot of  \nconfusion by only tuning one radio, the highest one, whether it be  \nreceive or transmit.\n\nIf you are using a computer for tracking, it should also give you the  \ndoppler correction even if you are not controlling the radios with it  \nand you should find your downlink without too much trouble. It is  \nconfusing at first, but after a while you get hte hang of it and it  \nbecomes second nature.\n\nIf you can catch AO-7 in Mode A, that is a good mode to practice  \nDoppler compensation with as the doppler shifts are much lower. - Duffey\n\n\nOn Apr 18, 2009, at 12:07 PM, Jerry Felts wrote:\n\n> I have made 2 contacts now both were  VO-52. Both times on SSB and  \n> very\n> confusing. So say I'm working you. I found a clear freq by sending  \n> alot\n> dots. The uplink tx is switched to LSB. Do I leave the tuning dial  \n> on the\n> uplink rig and just use the tuning dial on the downlink to do my  \n> tuning? Or\n> do I juggle both rigs tuning dial and get confused?\n>\n> Jerry - NR5A - South Dakota\n> www.freewebs.com/nr5a\n> http://groups.yahoo.com/group/Minimalist_QRP_Transceivers/\n> http://www.cakewalkblogs.com/nr5asminimalradio/index.aspx\n> http://nr5abeaconblog.blogspot.com/\n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the  \n> author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite  \n> program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n--\nKK6MC\nJames Duffey\nCedar Crest NM\n\n\n\n\n\n",
    "attachments": []
}