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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/EPOJX7VZ2GP65VEUOLHPAY6US5O45OXI/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "EPOJX7VZ2GP65VEUOLHPAY6US5O45OXI",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/O5QWQVAMEFEAZMYU5X7X4RLCPZZBNBMA/?format=api",
    "sender": {
        "address": "erich.eichmann (a) t-online.de",
        "mailman_id": "6679c7cde510458f8117afd8289f9948",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/6679c7cde510458f8117afd8289f9948/emails/?format=api"
    },
    "sender_name": "Erich Eichmann",
    "subject": "[amsat-bb] Completion: Re:  SatPC32 Antenna Swapping with SDR",
    "date": "2019-06-01T16:53:04Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ISSESJ2YULLHW5GQXIW7X4KELIYVXJFD/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4JYGYRZJ5ACFDTCVMMQHS5KMMEZ6IVFH/?format=api",
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2KAASUQCTDJUHKXUKMJHSXD34SAVLGR2/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nHi Tim, a problem with that configuration:  you need access to the pins \nGround and DTR (pins 5 and 4) of the serial port to steer the buffer \ninterface.  To steer your Yaesu radio via the Radio 2 COM port you will \nuse  a USB-to-Serial converter + a Yaesu CAT cable, e.g. the CT-62. This \ncable comes with a DB-9 connector on one side  that connects to the \nconverter and a mini DIN plug on the other side, that connects to the \nradio.  So, you don't have direct access to the lines Ground and DTR. \nWhat you could do: Solder a short cable with a female DB-9 connector on \none side and a male one on the other side. Connect the female side to \nthe USB-to-Serial converter and the male side to the DB-9 connetotr of \nthe CT-62. With that cable you  can then easily lead out 2 extra wires \nto the Ground and DTR pins to control the interface.\n\n73s, Erich, DK1TB\n\nAm 01.06.2019 um 14:48 schrieb Tim Rife via AMSAT-BB:\n> Thanks for the reply Erich.  I will give that configuration a try.\n>\n>   \n>\n> 73,\n>\n>   \n>\n> Tim\n>\n> KK9T\n>\n>   \n>\n>   \n>\n>   \n>\n> Hi Tim,\n> I have described the feature on my websitewww.dk1tb.de  <http://www.dk1tb.de>  , Engl. page 'Downloads', sect. 5g  (Buffer Interfaces).\n> You don't need a PC with a phyical COM port. The voltage at the DTR pin of  my USB-to-Serial converter (which generates the Radio 2 COM port) changes between +6 (high) and -6 V (low), when the user switches between  v/u and u/v satellites. The corresponding option in menu 'Options' must be checked, of course.\n>\n> If the DTR pin is low, the buffer interface locks and the relay remains open. If the pin is 'high', the interface is routed and the relay closes. I do not have a transfer relay, but have successfully tested the function with a 12 volt coax relay.\n>\n> 73s, Erich, DK1TB\n>\n>   \n>\n> _______________________________________________\n> Sent [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions expressed\n> are solely those of the author, and do not reflect the official views of AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings:https://www.amsat.org/mailman/listinfo/amsat-bb\n",
    "attachments": []
}