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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BKFG5DK2U57NZ7K43TXQZFVZPT2HTJ7I/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "BKFG5DK2U57NZ7K43TXQZFVZPT2HTJ7I",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/MX7AZTBKHY6CNB7HJ2TZZGGA7CKNCGJK/?format=api",
    "sender": {
        "address": "daniel (a) destevez.net",
        "mailman_id": "c2eac82b839b45f5a7d3b923c1721007",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/c2eac82b839b45f5a7d3b923c1721007/emails/?format=api"
    },
    "sender_name": "Daniel Estévez",
    "subject": "Re: [amsat-bb] AO-85 vs SO-50 for newbies with modest equipment",
    "date": "2015-11-06T14:44:53Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MX7AZTBKHY6CNB7HJ2TZZGGA7CKNCGJK/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi Felix,\n\nI'm also having a bit of trouble working AO-85. My equipment for FM sats\nis an arrow antenna, FT-817ND for RX and FT-2DE for TX.\n\nWith this I can work SO-50 without any problems. Whenever more that a\ncouple of degree's over the horizon, I can hear it well and I hit the\ntransponder perfectly. In fact, the UHF downlink helps a bit in pointing\nthe antenna, and I would usually point it by ear, having just a mental\npicture of the pass. If you can hear well the downlink, then you can get\nin well, because your uplink has wider beam and much more power.\n\nHowever, with AO-85 it's a bit hit and miss for me. I find it a bit\ndifficult and random to hit the transponder, and I think it would be\nalmost impossible for me to work it half-duplex. I will often retry and\ntweak things if not hearing myself on the downlink properly. The\ndownlink of AO-85 is very strong, and it can be heard with the antenna\nall over the place, even pointing into the ground sometimes. So you have\nto know well where the satellite is before transmitting, and listen\nyourself and tweak the antenna as you transmit.\n\nSeveral people report, and my experiences agree with them, that the\nreceiver on AO-85 is a bit deaf for some unknown reason (this has\nnothing to do with the 70cm band) and that it's 5kHz low in frequency\nfrom the published specs. Thus, I will start a pass on 436.165 and work\nup from that as the pass progresses, being at about 436.175 at midpass\nand 436.185 at LOS.\n\nRegarding working full-duplex, if you're going to get a single radio to\ndo full-duplex, check very carefully that it won't suffer from\ndesensing. This can be very critical, especially when working V/U. If\nyou already have a UV-5R, I would probably get a second of those, or\nperhaps another handheld with better sensitivity to use as RX if you\nwant to invest a bit more money. Of course, you'll need a duplexer to\nuse the elk with two radios.\n\n73 and looking forward to working you on the birds,\n\nDani M0HXM/EA4GPZ.\n",
    "attachments": []
}