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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/N7LDCLYQWMBYSID7ZBPSOEQDWRFMENQB/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "019601c6ebe5$9e7abd80$0d02a8c0@TONY",
    "message_id_hash": "N7LDCLYQWMBYSID7ZBPSOEQDWRFMENQB",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/N7LDCLYQWMBYSID7ZBPSOEQDWRFMENQB/?format=api",
    "sender": {
        "address": "w4tas (a) gte.net",
        "mailman_id": "60dab50fa2c74897a56f7867cb7ad2f7",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/60dab50fa2c74897a56f7867cb7ad2f7/emails/?format=api"
    },
    "sender_name": "Tony Stone",
    "subject": "[amsat-bb]  Fw:  Re: More Clutter on 2.4 GHz",
    "date": "2006-10-09T20:58:01Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/KJP2J3A65ODW5H5NSQELTREOPNCB5V6X/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "The part 15 rules for 2.4 GHz operation state that a maximum transmitter\noutput of 1 watt with a 6 dbi omni antenna is legal. This is 4 watts eirp.\nWith a directional antenna you must decrease your transmitter power\n1 db below 1 watt for every 3 db antenna gain over 6 dbi.\n\nConfusing as this may seem, it means that you can have 250 milliwatts\nof transmitter output with a 24 dbi gain antenna. That is 18 db over\nthe original 6 dbi which is 6 units of 3 db each. This means that the\ntransmitter power must be reduced from 1 watt to 250 milliwatts (6db).\n\nThis is an effective isotropic radiated power of 64 watts and is perfictly\nlegal.\n\nCheck the gain of a 36 inch dish at 2.4 GHz and do the calculations to\nsee if it is legal or not.\n\n73\n\nTony\nW4TAS\n\n\n----- Original Message ----- \nFrom: \"Tony Langdon\" <[email protected]>\nTo: \"Nate Duehr\" <[email protected]>; \"joseph Murray\" <[email protected]>\nCc: <[email protected]>\nSent: Monday, October 09, 2006 4:22 PM\nSubject: [amsat-bb] Re: More Clutter on 2.4 GHz\n\n\n> At 03:11 AM 10/10/2006, Nate Duehr wrote:\n>\n>>Also illegal.  Check the FCC's ERP limits for point-to-point 802.11 and\n>>I believe you'll find that what your ISP did for you is breaking the law.\n>>\n>>36\" dish + 100 mW looks to me like it's way above the ISM band EIRP\n>>limits for unlicensed use, since the limit is 100mW EIRP.\n>\n> Hmm, I thought your base EIRP was 4W (same as it is here) for 2.4 GHz\n> wifi (and probably other SS/high speed data networking), and that\n> under US rules, you could increase that further on point to point\n> links on a sliding scale (we can't, it's 4W for all antenna\n> configurations here).\n>\n> 73 de VK3JED\n> http://vkradio.com\n>\n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n>\n> -- \n> No virus found in this incoming message.\n> Checked by AVG Free Edition.\n> Version: 7.1.407 / Virus Database: 268.13.1/466 - Release Date: 10/7/2006\n>\n> \n\n",
    "attachments": []
}