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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/QY42KOQKWK3NCBTFYLVABN2PFAU2K57V/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CACZz0S29HAcL39yXvSoQ9OBf0QxHt8sQ5bmGd-HEc3xvxX7zmA@mail.gmail.com",
    "message_id_hash": "QY42KOQKWK3NCBTFYLVABN2PFAU2K57V",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/QY42KOQKWK3NCBTFYLVABN2PFAU2K57V/?format=api",
    "sender": {
        "address": "ks1g04 (a) gmail.com",
        "mailman_id": "30590cddbe684a52a5c3c945059cdd06",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/30590cddbe684a52a5c3c945059cdd06/emails/?format=api"
    },
    "sender_name": "Stephan Greene",
    "subject": "[amsat-bb] Solved! Icom 821 and SatPC32 uplink frequency weirdness",
    "date": "2012-06-07T00:55:05Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JRMPQXUSQD4R6JNENYS5J2PKO7574DSE/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "...and there was much rejoicing.\n\nTrying to get back on the satellites after many (10 year?) hiatus.\n[Yes, I missed AO-51, Arrisat, and a lot of the earlier cubesats.\nSigh.]  Trying to use SatPC32 to control my Icom 821H and I was seeing\nweird behavior and having trouble finding and staying tuned on my\ndownlink.  Manual control worked fine, but I wanted the computer\ntaking care of some of the work for me.  Finally noticed that the\nfrequency jumps were EXACTLY the default repeater offsets used when\nthe rig is in FM/repeater mode.  No idea how the satellite section got\nthat way (hidden menu triggered? stray bit flip?) but it happened\nwhenever SatPC32 sent frequency corrections (either automatic Doppler\ncorrection from the software or tuning via keyboard commands) while I\nwas transmitting.\n\nSolution was a full reset of the radio.  Satellite mode works as it\nshould, confirmed by some nice, computer-supported voice QSOs on AO-7\nand VO-52 this evening.\n\nSo, to summarize (and hopefully make it easier for anyone searching\namsat-bb in the future if they run into this):\n\nProblem: Icom 821 in satellite mode. Sub-band transmitter frequency\njumps +600 kHz (2M) or -5 MHz (70cm) while transmitting in CW, SSB,\nand FM, as soon as software sends a frequency correction to the radio.\n No jumps or problems when just listening and tuning across\ntransponder.  Manual satellite mode (software control off) behaves\nnormally.  Manual does not indicate satellite mode has a repeater\noffset feature.\n\nSolution: Full reset of radio, reconfigure radio as needed (interface\nbaud rate and verify address) for software control.\n\nThanks to the folks I contacted direct (searches of amsat-bb archives\nfor SatPC32 and Icom 821 issues) for their suggestions and\nencouragement.  Sometimes a problem that appears to be between the\nradio & the computer or software is due to the radio, not the\ncomputer.\n\n73, hope to work many of you on the birds.\nSteve KS1G FM18hx\[email protected]\n",
    "attachments": []
}