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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GAMP2LD3JBNL65IPDR2XFAAYZGHSGLQ2/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CABsMmtS8aN9+P6eRQ_ynPvTYOmaH_+N1GUe7DVhVgwoZ=FU_cQ@mail.gmail.com",
    "message_id_hash": "GAMP2LD3JBNL65IPDR2XFAAYZGHSGLQ2",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/FREILMKHEB7PKNHXDQ7LLTP54PNGIA42/?format=api",
    "sender": {
        "address": "johnnykludt (a) gmail.com",
        "mailman_id": "1052971820fa4c30a2a6e76a33ee243f",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/1052971820fa4c30a2a6e76a33ee243f/emails/?format=api"
    },
    "sender_name": "John Kludt",
    "subject": "Re: [amsat-bb] AO-92 L Band Power",
    "date": "2020-07-09T16:15:26Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PEQJWOHPMBKU3LSSIBTTDGS37SXY33JZ/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4RFZ4IU3E3CO264VHGBD3JOFMHYNHX63/?format=api"
    ],
    "votes": {
        "likes": 0,
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        "status": "neutral"
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    "content": " All\n\nThe important thing to remember is ERP.  Using the KV5R calculator and\nassuming an SWR or 1.2:!  the ERP for this contact was  618 watts.  (\nhttp://kv5r.com/ham-radio/coax-loss-calculator/)  The antenna gain was\nbased on the published gain for the M2 35 element Yagi .\n\nTen watts may or may not be enough.  What we need to do is look at the\noverall system of losses ( coax) and gains (antenna).\n\nHope this helps\n\nJohn K4SQC\n\nOn Thu, Jul 9, 2020 at 10:13 AM Lynn Palmer via AMSAT-BB <[email protected]>\nwrote:\n\n> Hi Alan, I use 10 watts from my Icom IC-9700. I run about 100 feet of LMR\n> 600 coax so maybe 5 watts to the antenna.  I use a 35 element yagi\n> antenna.  I made the satellite today at 14 degrees elevation OK.\n> 73sLynnKD9BVG\n>\n>     On Wednesday, July 8, 2020, 04:53:09 PM CDT, Alan Blind via AMSAT-BB <\n> [email protected]> wrote:\n>\n>  Using 10 Watts, I have not been able to get into AO-92 L Band.\n>\n> From the AO-92 web site:\n>\n> ================\n>\n> ......Since the 435 MHz uplink antenna is used to receive the 1267 MHz\n> signals and may present a mismatch at that frequency, pre-launch estimates\n> suggest that a power level of 100 watts ERP will be required for\n> horizon-to-horizon access in Mode L/v. AMSAT Engineering will issue further\n> guidance after in-orbit testing. Look for future articles on the AMSAT\n> website and in The AMSAT Journal for equipment ideas and tutorials for\n> accessing the L-band uplink.\n> ====================\n>\n> Perhaps my 10 Watts are too low.  Have there been updates from AMSAT on\n> recommended L band power?  What power do others run?\n>\n> Alan\n> WA9WUD\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb\n>\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions\n> expressed\n> are solely those of the author, and do not reflect the official views of\n> AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb\n>\n",
    "attachments": []
}