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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PGIWH23S5L44P2I7I5ASEL6MBNWU567B/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "CAJCSnOZxB3Y0Jkz4WdXgfS=vVqeQVvu_4Ah5vPwNfmbyTDwDdA@mail.gmail.com",
    "message_id_hash": "PGIWH23S5L44P2I7I5ASEL6MBNWU567B",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/K3ZVOXTMSNCFOHL6MRV3WPHO6QF4ZT2U/",
    "sender": {
        "address": "scott23192 (a) gmail.com",
        "mailman_id": "120e10e05ba14969a11da0a96d21e355",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/120e10e05ba14969a11da0a96d21e355/emails/"
    },
    "sender_name": "Scott",
    "subject": "Re: [amsat-bb] AO-92 in Camera Mode",
    "date": "2019-07-11T03:47:09Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/XXEMR2TXXUKYLRVIBORLWUNYBWOH54AV/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Hans.\n\nWhile not GQRX, if you'd like to use the screen shot of HDSDR in an old\ntweet I posted some time ago, you can see the RF and Audio-Out bandwidth\nsettings required to successfully forward AO-92's high-speed data stream to\nFoxTelem:\n\nhttps://twitter.com/scott23192/status/953288770555645952\n\n... in short, around 20k worked well for both RF and Audio-Out.  15k is\nusually perfect for most 9600 baud data, but to err on the side of caution\nI had found that 20k produced good results with AO-92's camera data\nstream.  The real deal-breaker for the higher data rates is filtering the\naudio output at too narrow of a bandwidth.  That'll get you every time.\n\nGQRX has a little \"...\" menu that's easy to overlook right beside the demod\nMODE selection.  For a data stream like AO-92's you'll want either the 17k\nor 25k setting.  Experiment and see what works best!\n\n-Scott,  K4KDR\n\n=======================\n\nOn Wed, Jul 10, 2019 at 11:28 PM Hans BX2ABT via AMSAT-BB <\[email protected]> wrote:\n\n> I just received my first HS data from AO-92. Nothing was decoded using\n> FoxTelem, but I got the IQ file to play around with. It was a low pass\n> for me, so signals were only 20 db over noise using my AirSpy mini. That\n> might be too little, although I can receive Falconsat-3 at those levels\n> without any problems.\n>\n> What are the settings to watch out for decoding HS data (deviation,\n> soundcard, Foxtelem)? Or should it \"just work\"? The only difference I\n> can see between FS-3 and AO-92 is that audio from GQRX is going out to\n> PacSat Ground Station via UDP and Foxtelem gets it from GQRX via a\n> virtual audio loop (set in Pavucontrol).\n>\n> Still exited to receive AO-92 with HS data for the first time. I saw on\n> Twitter that JA0CAW did get part of an image, so for him it did work.\n>\n> 73 de Hans\n>\n> BX2ABT\n>\n>\n> On 07/11/2019 10:27 AM, Chris Thompson via AMSAT-BB wrote:\n> > For anyone decoding images and using FoxTelem with Doppler Tracking\n> enabled\n> > I would appreciate any feedback on how high speed data is being decoded.\n> > Especially if you decoded camera frames in previous runs, like last\n> > October, and can compare.\n> >\n> > This was a new feature and previously tracking of the high speed signal\n> was\n> > not great.  Let me know if it is better (or worse!)\n> >\n> > 73\n> > Chris\n> >\n>\n",
    "attachments": []
}