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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4JYGYRZJ5ACFDTCVMMQHS5KMMEZ6IVFH/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "9F86E1F2239946E392820E993E66F690@CSI9020",
    "message_id_hash": "4JYGYRZJ5ACFDTCVMMQHS5KMMEZ6IVFH",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/O5QWQVAMEFEAZMYU5X7X4RLCPZZBNBMA/?format=api",
    "sender": {
        "address": "scott23192 (a) gmail.com",
        "mailman_id": "120e10e05ba14969a11da0a96d21e355",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/120e10e05ba14969a11da0a96d21e355/emails/?format=api"
    },
    "sender_name": "Scott",
    "subject": "Re: [amsat-bb] Completion: Re:  SatPC32 Antenna Swapping with SDR",
    "date": "2019-06-01T17:22:53Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/EPOJX7VZ2GP65VEUOLHPAY6US5O45OXI/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I've had good luck with these on various projects involving 9-pin serial \nconnections:\n\nhttps://www.amazon.com/gp/product/B00WW6P636/\n\n\n-Scott,  K4KDR\n\n========================================\n\n-----Original Message----- \nFrom: Erich Eichmann via AMSAT-BB\nSent: Saturday, June 01, 2019 12:53 PM\nTo: [email protected] ; [email protected]\nSubject: [amsat-bb] Completion: Re: SatPC32 Antenna Swapping with SDR\n\n\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>   73,\n>\n> Tim\n>\n> KK9T\n>\n>\n> Hi Tim,\n> I have described the feature on my websitewww.dk1tb.de \n> <http://www.dk1tb.de>  , Engl. page 'Downloads', sect. 5g  (Buffer \n> Interfaces).\n> You don't need a PC with a phyical COM port. The voltage at the DTR pin of \n> my USB-to-Serial converter (which generates the Radio 2 COM port) changes \n> between +6 (high) and -6 V (low), when the user switches between  v/u and \n> u/v satellites. The corresponding option in menu 'Options' must be \n> checked, of course.\n>\n> If the DTR pin is low, the buffer interface locks and the relay remains \n> open. If the pin is 'high', the interface is routed and the relay closes. \n> I do not have a transfer relay, but have successfully tested the function \n> with a 12 volt coax relay.\n>\n> 73s, Erich, DK1TB \n\n",
    "attachments": []
}