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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LSHSNETS34LNP5HUTDWN4W5FAY4TN44T/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "LSHSNETS34LNP5HUTDWN4W5FAY4TN44T",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/CXIIECBBUBISU55GCTU4RPHD4OWIFIFK/",
    "sender": {
        "address": "rnutter (a) networkref.com",
        "mailman_id": "9d4409219c4248a6be735e65e52a44fc",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9d4409219c4248a6be735e65e52a44fc/emails/"
    },
    "sender_name": "Ronald Nutter",
    "subject": "[amsat-bb] Re: AMSAT-BB Digest, Vol 3, Issue 239",
    "date": "2008-05-12T20:17:03Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/CXIIECBBUBISU55GCTU4RPHD4OWIFIFK/",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MVZ4P6WZO7WYPHACSMRB575T3OWY6AG3/"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "John:\n\nI am using a \"budget\" rotor from Channel Master for my current setup. \nIs that strong enough to support an elevation rotor or do I need to save \nup some $$$ and get an AZ/EL rotor ?  It looks like Yaesu is the only \noption I can find.  Are there others that I should look at ?\n\nRon\n\nJohn Kopala wrote:\n> Ron,\n> \n> Been there, Done that.  I am using a Directive Systems Looper antenna for \n> 1.2 GHz.  With the setup I have, I chose a 6 foot long version with a 30 \n> degree beamwidth rather than the 12 foot long antenna.  It works quite well \n> when AO-51 is put in L/U mode as was done several months back for channel B. \n> You can check out my satellite antenna setup on QRZ.\n> \n> I am using the IC-910 with the 1.2 GHz module.  Works great.  Figure about \n> half of your output will ever reach the antenna.  I selected Belden 9913F7 \n> ultraflex cable which is ideal for my installation.  Keep the runs as short \n> as possible.  Probably better, if it works for you, would be LMR-400 or 600 \n> or hardline.\n> \n> For a given length CP Yagi, the gain of the antenna is going to increase as \n> the frequency increases (more elements, etc) and beamwidth of the antenna is \n> going to become more narrow.  So pointing the antenna accurately becomes a \n> more significant  factor.  It's time to go out and buy the elevation rotor. \n> You'll find that it is worth every penny you put into it.  A beamwidth of 30 \n> degrees on 1.2 GHz gives the half power points as 15 degrees either side of \n> the antenna position.  You don't really want to be 15 degrees off.  You want \n> to keep the satellite well within the main lobe of the antenna.  At 1.2 GHz, \n> starting with 10 watts, figure half of that gets to the antenna.  You don't \n> want to throw away half or all of what's left because the antenna isn't \n> pointed at the satellite.  Elevation control will also reduce your power \n> requirements on all of your uplinks.\n> \n> Date: Sun, 11 May 2008 20:49:23 -0500\n> From: Ronald Nutter <[email protected]>\n> Subject: [amsat-bb]  Suggestions for Mode L antenna\n> To: [email protected]\n> Message-ID: <[email protected]>\n> Content-Type: text/plain; charset=ISO-8859-1; format=flowed\n> \n> I am considering purchasing the 1.2 ghz module for my IC-910H.  For my\n> satellite work, I have my antennas angled at about 20 degrees since I\n> dont have an az/el rotor.  This setup worked reasonably well with Mode S\n> this weekend.  What are my chances to be able to work Mode L with this\n> kind of setup ?  Also, I would appreciate any suggestions for an antenna\n> that I could use.  With only 10 watts, I am not expecting a great signal\n> but I would hope to have at least a readable signal.  Also, would\n> appreciate any suggestions as to coax/feedline that I should look at\n> buying ?\n> \n> Thanks,\n> \n> Ron\n> KA4KYI\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",
    "attachments": []
}