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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/V2I4QCHLRUEVYBD7X6GCDIAYWORNLCSR/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "V2I4QCHLRUEVYBD7X6GCDIAYWORNLCSR",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/V7RGAVHNQMCS6MZXXX5MTMGU7DOGNQAE/",
    "sender": {
        "address": "nate (a) natetech.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Nate Duehr",
    "subject": "[amsat-bb] Re: D-STAR experiment on Cubesat",
    "date": "2008-06-09T04:49:39Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/5E3IOSWWGB2DKCD3FYRM426HUDMBUS4Z/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nOn Jun 8, 2008, at 10:18 PM, David Donaldson wrote:\n\n> Do we think that anyone other then Icom will ever support the mode?   \n> I'd\n> love to experiment with it on the birds but until there is  \n> competition to\n> drive the price down will that be possible.\n>\n> Maybe a GNU project?\n>\n> Dave\n> WB7DRU\n> Minnesota\n\nD-STAR itself is an open protocol.  The CODEC is proprietary to DVSI  \n(AMBE VOCODER) only.  The rest of it is possible for anyone to build to.\n\nSatoshi Yasuda (7M3TJZ/AD6GZ) has a working D-STAR interface that  \nrequires nothing more than a radio with a standard \"9600 baud packet\"  \nport on the back.  (Discriminator audio, and an unfiltered audio input.)\n\nAs far as AMBE, DVSI sells chips with the VOCODER embedded in them for  \nabout $20 in single-quantity pricing.  So it's possible to buy a $20  \nchip and not worry about the proprietary bits -- and the rest can be  \ndone in software/firmware.  (This type of \"use the DVSI chip, write  \nthe rest\" model, is what the popular DV-Dongle is based on.)\n\nAs to whether or not others will support the mode... who cares?  They  \ndon't even have digital products out yet.  Until they do, they're now  \nway behind, technology-wise.  I'm not even an Icom fan, and I've just  \nbought two of their rigs, specifically for D-STAR... and not  \nregretting it.  They're good analog rigs in that mode, no problems  \nother than I don't like the audio quality of the ID-800H's mic, but  \nthat can be worked on...\n\nMeanwhile... Yaesu/Motorola released yet another analog dual-band non- \nfull-duplex HT.  Yawn.\n\nKenwood's busy merging with JVC and can't produce their popular dual- \nband HT because parts dried up on them before they could do a redesign  \non the internal boards.  Another Yawn.\n\nIcom paired up with an outside organization (JARL) and worked on rigs  \nfor a completely new mode for hams to play with.   Much more  \ninteresting.\n\nIt sure would be interesting to get something with an AMBE CODEC (or  \nconvince DVSI to license the CODEC into an SDR) on-orbit... but not  \nreally necessary... since this \"stuff\" will pass through a transponder  \njust fine, as evidenced by some folks who've done it.\n\n--\nNate Duehr, WY0X\[email protected]\n",
    "attachments": []
}