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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/VIFACFXQOIRGJD2LBQI7B4XYWEG3DKDH/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "VIFACFXQOIRGJD2LBQI7B4XYWEG3DKDH",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/R67FULC2BUCAWCSXIOSFPTCOHGNZAFZN/?format=api",
    "sender": {
        "address": "rnutter (a) networkref.com",
        "mailman_id": "9d4409219c4248a6be735e65e52a44fc",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9d4409219c4248a6be735e65e52a44fc/emails/?format=api"
    },
    "sender_name": "Ronald Nutter",
    "subject": "[amsat-bb] Re: Preamp for a Mobile Application",
    "date": "2008-03-31T14:03:28Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/R67FULC2BUCAWCSXIOSFPTCOHGNZAFZN/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "I have used a Comet CF-160 duplexer to split the vhf and uhf to seperate \nantennas.  From the UHF side, I used a 3 element uhf beam with no \namplifier and have had very good results with all the FM birds.  In most \ncases I used a 1/4 wave mag mount on vhf for the uplink.\n\nIn a mobile situation, I dont know that it is that critical where the \namplifier is mounted since the coax run will be less than 15 ft in most \ncases.  I have used advanced receiver research amplifiers which are in a \n  2x2x.5 form factor.  I think they have a switching amp model as well.\n\nRon\nKA4KYI\nAMSAT Mo Coordinator\n\nKent R. Frazier wrote:\n> Hi all,\n> \n> I am really enjoying the satellite aspect of the hobby and have enjoyed the\n> contacts I have made with my Icom IC-2720H with a 19\" whip antenna from my\n> vehicle. I have seen talk recently of using a preamp to improve the\n> reception. From what I've read and understand, it appears that a \"switching\"\n> preamp is needed for a setup using only one antenna for Tx and Rx such as\n> mine. Is this correct?\n> \n> It also appears that most of the preamps are mast mounted. Since this would\n> not be an option for me can the preamp be put near the transceiver? Are\n> there any issues that result of doing so?\n> \n> Lastly, what preamp(s) would you recommend for an application such as mine?\n> \n> \n> Thanks,\n> \n> Kent\n> \n",
    "attachments": []
}