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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/YS4OLNO3ZZE3DDHZHIV34VGCBCLY2FH7/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "YS4OLNO3ZZE3DDHZHIV34VGCBCLY2FH7",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/JZPYTYHQVQNT4KQBBGCUQHR6HREKF6SP/?format=api",
    "sender": {
        "address": "seb (a) wintek.com",
        "mailman_id": "334792c18f7f4268a405ca1814e93bd0",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/334792c18f7f4268a405ca1814e93bd0/emails/?format=api"
    },
    "sender_name": "Stephen  E. Belter",
    "subject": "Re: [amsat-bb] RF power required for linear satellites?",
    "date": "2018-06-20T23:35:56Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GWKFR4BRLMKBCINKSJSYHFZMJB25ARA7/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Ken,\r\n\r\nI agree with Bryan, for 364 of the days of the year.  5 watts is usually fine and sometimes too much for the linear satellites.\r\n\r\nThis is really a function of how busy the satellite is, and how much power the other operators are using.  On a quiet pass, some operators report success with only 50 milliwatts.\r\n\r\nThe one day of the year that you may have trouble with is Field Day, with lots of traffic, and a few QRO stations.\r\n\r\nI'm not encouraging you to use more power, as that can cause real problems on AO-7 (usually causing it to crash or reset to Mode A) or FO-29 (usually causing severe FM'ing of the entire passband).  But be aware that your experience on Field Day may be different than the rest of the year.  \r\n\r\nI do encourage you to use a good antenna (e.g., Arrow or Elk), a relatively short length of quality coax (6-10 feet of LMR-240 Ultraflex, not RG-8), and no connector adapters.\r\n\r\n73, Steve N9IP\r\n--\r\nSteve Belter, [email protected]\r\n\r\n\r\n\r\nOn 6/20/18, 5:57 PM, \"AMSAT-BB on behalf of Bryan KL7CN\" <[email protected] on behalf of [email protected]> wrote:\r\n\r\n    Five watts is definitely sufficient for the common linear satellites.\r\n    \r\n    There are circumstances when it is nice to have a little more -- maybe 10 watts -- such as on a very low pass from a high location.\r\n    \r\n    But, there are so many who use the 5-watt FT-817ND that you will soon hear a chorus. :)\r\n    \r\n    -- bag\r\n    \r\n    Bryan KL7CN/W6\r\n    Location: CM98, usually\r\n    E-Mail: [email protected]\r\n    Telephone/SMS: 408-836-7279\r\n    \r\n    > On Jun 20, 2018, at 00:18, Ken M <[email protected]> wrote:\r\n    >\r\n    > Hello AMSATers,\r\n    >\r\n    > I’m wondering if 5 watts is generally sufficient RF output to work the common linear satellites using a handheld satellite antenna (Arrow or Elk)?\r\n    >\r\n    > For example, would an FT-817ND (or the new FT-818) suffice for the uplink radio, or would you need an amplifier with those 5 (6) watt radios, or just a more powerful radio such as the FT-857D?\r\n    >\r\n    > Thanks & 73,\r\n    > Ken  VA7KBM\r\n    \r\n    _______________________________________________\r\n    Sent via [email protected]. AMSAT-NA makes this open forum available\r\n    to all interested persons worldwide without requiring membership. Opinions expressed\r\n    are solely those of the author, and do not reflect the official views of AMSAT-NA.\r\n    Not an AMSAT-NA member? Join now to support the amateur satellite program!\r\n    Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb\r\n    \r\n    \r\n\r\n",
    "attachments": []
}