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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4XUYWJZWGB245AQDPNIR6GXCOCEW7SB3/?format=api",
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    "message_id": "CAN6TEUdRMn9-x1u7GL7VXmDK=YpRBiLJvttJPaNdXHOVVg0UwA@mail.gmail.com",
    "message_id_hash": "4XUYWJZWGB245AQDPNIR6GXCOCEW7SB3",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2ETFYEDD2OUFXABCROPA5MVTHVFWF3SR/?format=api",
    "sender": {
        "address": "amsat-bb (a) wd9ewk.net",
        "mailman_id": "21664df01bef4757931b7cdb42a9e768",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/21664df01bef4757931b7cdb42a9e768/emails/?format=api"
    },
    "sender_name": "Patrick STODDARD (WD9EWK/VA7EWK)",
    "subject": "Re: [amsat-bb] Recording TX & RX from one or two radios?",
    "date": "2018-05-18T00:21:43Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2ETFYEDD2OUFXABCROPA5MVTHVFWF3SR/?format=api",
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        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/UAPLZR2AOQC7ITO2D6MGIEZ5EZQZUEI4/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/WQBQFK4R3G76AK564D3MCL7X47YFD5SK/?format=api"
    ],
    "votes": {
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    },
    "content": "Ken,\n\nIt really is simple, if you are working full-duplex. Just\nrecord the RX audio. You get the full exchanges, since\nyou will hear yourself and the other stations. A splitter\non the speaker of the radio receiving the downlink can feed\naudio to a recorder and headphones/earphone/earbuds you are\nusing to hear the downlink.\n\nFor working HF or working satellites half-duplex, I just use\na recorder that picks up the radio's speaker audio and my\nvoice with its microphone. Then I get both sides of those\nQSOs.\n\n73!\n\n\n\n\n\n\nPatrick WD9EWK/VA7EWK\nhttp://www.wd9ewk.net/\nTwitter: @WD9EWK or http://twitter.com/WD9EWK\n\n\nOn Thursday, May 17, 2018, Ken M <[email protected]> wrote:\n\n> Hello AMSATers,\n>\n> I'm looking to record both TX and RX audio to a digital recorder, either\n> at the QTH or in the field (but mainly in the field), in either of two\n> common scenarios:\n>\n> 1. TX from one radio, and RX from a different radio (as in satellite use\n> with one radio for uplink and one for downlink).\n>\n> 2. TX/RX from the same radio (as in a full-duplex radio for FM\n> satellites, or for non-satellite use).\n>\n> I'm wondering if you know of a device (or a published circuit design)\n> that will allow TX/RX recording while isolating the radios from each\n> other and/or a radio's TX from it's RX, while linked to the same\n> recorder? I have to believe this is a well-solved problem within the\n> satellite radio community but I haven't found too many ideas for field\n> use. This is seems to be an easier problem to solve at the QTH if\n> recording to computer, with various sound interfaces (Signalink, etc.)\n> so my main interest is in field use with a digital recorder so I can\n> record my QSO's while juggling two radios plus antenna, etc. The easy\n> alternative is just to record the RX side, which is easy, and works for\n> logging but doesn't give you the full exchange.\n>\n> Thanks & 73!\n> Ken VA7KBM\n>\n>\n>\n",
    "attachments": []
}