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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/IC5PI7DH46C7U3ID3REGU5JOAEWL4I32/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "IC5PI7DH46C7U3ID3REGU5JOAEWL4I32",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/IC5PI7DH46C7U3ID3REGU5JOAEWL4I32/",
    "sender": {
        "address": "corner5 (a) comcast.net",
        "mailman_id": "9bef444d45f3431b9fa12f52098c7b6c",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9bef444d45f3431b9fa12f52098c7b6c/emails/"
    },
    "sender_name": "corner5",
    "subject": "[amsat-bb]  beginner question re: uplink power",
    "date": "2008-10-19T05:41:46Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "hello,\n\nI have a beginner question.  I am in the process of setting up my first \nsatellite station.  My initial investment is minimal and I have chosen \nto start out with a pair of 2m and 70cm omni antennas on the roof.  To \nhelp out a bit I am also adding a mast mount preamp on each antenna.  To \nprotect the preamps they will be switched out of line by a RF sense \nswitch (one for each amp).  For reference the two preamps and the pair \nof RF switches are all made by Ramsey (I know there are better preamps, \nbut not available in my current budget).  I am keeping this initial \nadventure limited to the LEOs (and ISS, etc.).\n\n_The question: _ When I assemble the RF switches I must choose a RF \nrange for the switch to work within.  The range is determined by the \nchoice of a specific resistor.  The default three ranges suggested are \n0-10 watts, 10-30 watts, and 30-100 watts.  I would be able to change \nthe range later but it would require removing the unit from the mast.\n\nSo... not having any experience (yet),_ what uplink power range is \nrecommend for non-gain antennas?_  Is there one range that should cover \nthe LEOs?  If not, how much should I expect the required uplink power \nneeds to vary across various satellites?  Is it different for each band? \nI have read that it is always best to never be louder than the beacon \nand that's fine.  I'm  just needing to know where to start off my \nhardware choices.\n\nThanks in advance for any help from you folks with the know-how.  I look \nforward to a qso with you.\n\n.paul  ac0z\n",
    "attachments": []
}