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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CAR552KCNQS3T5P2RQCV6XG5TX5HRS7C/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "CAF3DnKjEs2rAniG7hAvMAEsM3aRk8keRou22vgnnrUZMf0fdcQ@mail.gmail.com",
    "message_id_hash": "CAR552KCNQS3T5P2RQCV6XG5TX5HRS7C",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/GFARHBXOI27IRAE2KEKAH6ZWNZTVUTPA/",
    "sender": {
        "address": "dan (a) post.com",
        "mailman_id": "8fbd55eb51ed4663a4067933c1d26387",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/8fbd55eb51ed4663a4067933c1d26387/emails/"
    },
    "sender_name": "Daniel Cussen",
    "subject": "Re: [amsat-bb] DiSEqC Antenna Tracker System, HB9SCT",
    "date": "2020-05-15T08:42:38Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GFARHBXOI27IRAE2KEKAH6ZWNZTVUTPA/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I am based in Ireland. I have investigated diseqc as a means of rotator\ncontrol and I have generated custom messages using a windows PC\n\nSee here for video\n\nhttp://www.youtube.com/watch?v=HfhTP59WXUM&feature=mfu_in_order&list=UL\n\n\nI used some basic electronics to 'wiggle' the voltage to the rotator to\ngenerate the diseqc signal.\n\nI know others have done this too.\n\nI was most interested in building an XY rotator using two off the shelf\ndiseqc domestic rotators. I chose xy over azimuth elevation for 2 reasons,\none the standard diseqc dish rotators typically only rotate 1/2 or 3/4\nturn, and XY is better for fast overhead passes at microwave frequency\n\nUsing the software in that video, and a couple of components you can send\nmessages to that rotator.\n\nI also used a similar set up to reverse engineer and send custom diseqc\ncommands to other domestic satellite equipment equipment such as a DirecTV\ndownconveter.\n\nI never really completed or documented my work properly, but I have some\nrecords and the hardware.\n\nIt might be possible to modify specific diseqc rotators to travel beyond\n1/2 a turn, however an XY design needs little modification. I have a non\ndiseqc XY rotator which I have used in the past and it is superior on high\npasses at microwave frequencies.\n\nI have also build other arduino rotator controllers.\n\nAny questions please ask on or off list\n\nDan EI9FHB\n\n\n\nOn Sat, 9 May 2020 13:50 Gregory Beat via AMSAT-BB, <[email protected]>\nwrote:\n\n> Anyone in North America experimenting with DiSEqC Control for Tracking ??\n> https://en.wikipedia.org/wiki/DiSEqC\n>\n> DiSEqC (Digital Satellite Equipment Control), pronounced \"Die-Sec\", is a\n> special communication protocol for use between a satellite receiver and a\n> device such as a multi-dish switch or a small dish antenna rotor.\n> DiSEqC was developed by European satellite provider Eutelsat, which now\n> acts as the standards agency for the protocol.\n>\n> DiSEqC Protocol and Low-Noise Block Voltage Regulator TPS65235 for\n> Satellite\n> by Na Xu, Texas Instruments (December 2016)\n> http://www.ti.com/lit/an/slva863/slva863.pdf?&ts=1589027212595\n> ===\n> DiSEqC : Low Cost Antenna Tracker\n> Christian Monstein, HB9SCT (Switzerland)\n> http://www.e-callisto.org/Hardware/Diseqc/SARA%20Diseq_V01.pdf\n>\n> Callisto DISEqC Controller (June 2018)\n> http://www.e-callisto.org/hardware/Diseqc/Doku%20Diseq.pdf\n> The key components (and most expensive ones) are two DiSEqC motors (Az-El)\n> and the Arduino micro-controller.  Callisto Hardware - Knowledge Library.\n> http://www.e-callisto.org/Hardware/Callisto-Hardware.html\n>\n> STAB (Italy), HH100, HH120 rotors (~ € 85.00)\n> http://www.stab-italia.com/prodotto.php?cod=F208010\n> HH100, HH120 Manual\n>\n> http://www.stab-italia.com/downloads/rotor%20sat%20division/hh100%20and%20hh120/Instruction%20Manual%20%5BEN-DE-IT-FR-ES%5D.pdf\n> ==\n> greg, w9gb\n>\n>\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> 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>\n",
    "attachments": []
}