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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LRIRCIDXQ63JV6IWVOD2E5H3IT6PE3GG/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "LRIRCIDXQ63JV6IWVOD2E5H3IT6PE3GG",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/LRIRCIDXQ63JV6IWVOD2E5H3IT6PE3GG/",
    "sender": {
        "address": "ok2gz (a) seznam.cz",
        "mailman_id": "0f843deae0134ca2951f3a00495168cd",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/0f843deae0134ca2951f3a00495168cd/emails/"
    },
    "sender_name": "ok2gz",
    "subject": "Re: [amsat-bb] CAT Cable and Rotor Controller for FT-736R",
    "date": "2019-01-08T23:11:35Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Laird Taylor N7RSR,\n\n  with FT736R there is one more problem, not just how to gain suitable \ncable. CAT system in FT736R allows us to set Freq for RX and TX only. \nBut no possibility  how to read RX freq!  And this causes us difficulty.\n\nFrequency setting algorithm works with feedback. First set the frequency \nand then read it back. Verify that both frequencies are the same.If the \nverification fails, the control loop will stop working.\n\nThere exists some solutions to this problem. For example, insert a small \n8bit microcontroller between the PC and the TRX. Microcontrollerdecodes \nthe command to set the RX frequency and remembers it.The read command \nreturns the stored frequency from memory without reading it in the RX.\nWhen working through satellites, it is necessary to tune the RX using \nthe mouse wheel.\nI do not know if the MacBook works as I have described.  But GPredict \nsat software works as described and stops the control loop after 5 \nerrors in the read command.\n\nMr. Google help us to find concrete solution.\n\n73\n     jarda ok2gz\n\n\n//=================================\nI have an FT-736R and have just purchased MacDoppler from AMSAT. It will \nbe installed in a MacBook running OS 10.13.6. I’m shopping for a CAT \ncable to go between the two units. The guy at HRO said the original \nYaesu cable to go with Macs has part# FIF-65A but I don’t see anything \nyet on Google by that moniker. He also said the Yaesu CAT cable for PCs \nis FIF-232C - which I DO see around. Then I see a caution that there are \nlots of cheap cables around that use terrible chips that are a nightmare \nto keep running. The only cable I’ve found so far (on eBay) is $35 and \nthe vendor doesn’t seem to admit which chip set is used. Amazon in the \nUK has a cable for sale for 16 GBP, which could be one of the cheaper \nones. Immediate questions: 1. What subset of the alleged plethora of \navailable cables is MacDoppler compatible with CAT on the FT-736R? 2. \nWho sells such cables nowadays? So far I’ve found only eBay and Amazon; \nit’s not even clear they’re selling the same cable - never mind the one \nI must use... 73 Laird Taylor N7RSR\n\n\n\n\n---\nThis email has been checked for viruses by AVG.\nhttps://www.avg.com\n",
    "attachments": []
}