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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/DXJL4NNB52WQDKWVAYCITLDBTFY23CNC/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAHC1P28qnOwG7LoO54=Y675cAPMfY6i+o8RAmynPyaxiSQ1LEA@mail.gmail.com",
    "message_id_hash": "DXJL4NNB52WQDKWVAYCITLDBTFY23CNC",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IEZUMXNDUFM2KP7MTCGVIFPDSMZFPJP3/?format=api",
    "sender": {
        "address": "af5cc2 (a) gmail.com",
        "mailman_id": "5cf8802d8c4e4ba09260a676680350af",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/5cf8802d8c4e4ba09260a676680350af/emails/?format=api"
    },
    "sender_name": "John Geiger",
    "subject": "Re: [amsat-bb] HT for sats",
    "date": "2018-01-25T19:15:34Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CQKESP6XFU7WSU36ULL2MHNKWU3ASAL5/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I have used a Baofeng HT on the downlink on SO50 to get around the birdie\nissue with my TS2000.  It denses enough that I cannot hear myself on the\ndownlink. I now use a FT100D for the downlink on SO50 and that receives it\nfine.\n\n73 John AF5CC\n\nOn Thu, Jan 25, 2018 at 12:50 PM, Patrick STODDARD (WD9EWK/VA7EWK) <\[email protected]> wrote:\n\n> John,\n>\n> \"(O)n current HTs\"? Other than some reports I have seen about\n> the Alinco DJ-G7T and its poor receiver for FM satellites in\n> general, it appears that the HTs that have been previously\n> reported as capable of full-duplex operation with V/U FM\n> satellites like AO-51 and SO-50 would be fine with the mode\n> B (U/V) satellites like AO-91 and AO-92. With the uplink on\n> 70cm, you avoid issues with harmonics which can be an issue\n> on some radios capable of full-duplex operation when you\n> transmit on 2m - keeping in mind that frequencies in the\n> 435-438 MHz satellite subband can be very close to the third\n> harmonic of the 2m uplink frequency.\n>\n> After AO-85's launch in October 2015, I tested a few Chinese-\n> made 2m/70cm FM HTs that were advertised as being capable of\n> full-duplex operation. None of them could work SO-50 full-\n> duplex due to receiver desense, but could be used with AO-85.\n> I wrote a series of AMSAT-BB posts about those tests at that\n> time, and a link to a summary with other links to the specific\n> models is in the AMSAT-BB archive:\n>\n> http://amsat.org/pipermail/amsat-bb/2015-December/056269.html\n>\n> I have been using the Wouxun KG-UV9D with AO-91 on a regular\n> basis, either with my Elk log periodic or an MFJ-1717 2m/70cm\n> long duckie. This radio, along with other HTs like my TH-D72\n> and an old TH-D7 I had for a little bit, is capable of full-\n> duplex operation with mode B (U/V) satellites. I have seen\n> other reports online of hams using a Wouxun KG-UV8D (or one\n> of its variants) to successfully work AO-91 full-duplex.\n>\n> 73!\n>\n>\n>\n>\n> Patrick WD9EWK/VA7EWK\n> http://www.wd9ewk.net/\n> Twitter: @WD9EWK or http://twitter.com/WD9EWK\n>\n>\n>\n>\n>\n>\n> On Thu, Jan 25, 2018 at 6:30 PM, John Geiger <[email protected]> wrote:\n>\n>> Does desense on 2m occur with using Mode B FM satellites in full duplex on\n>> other current HTs?\n>>\n>> 73 John AF5CC\n>>\n>>\n>\n",
    "attachments": []
}