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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/PHBDRD527EMMHO2O2ZRXGOJNTLANCR57/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "PHBDRD527EMMHO2O2ZRXGOJNTLANCR57",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/PHBDRD527EMMHO2O2ZRXGOJNTLANCR57/",
    "sender": {
        "address": "k6yk (a) juno.com",
        "mailman_id": "9dd495eb5a5b4400ad5e4ad998068d9f",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9dd495eb5a5b4400ad5e4ad998068d9f/emails/"
    },
    "sender_name": "John W Lee",
    "subject": "[amsat-bb] Re: ARR pre amp Query",
    "date": "2008-03-31T20:11:03Z",
    "parent": null,
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/2X6XMHPB6UDBSTPIZLOTQ6IAOVL4FLH4/"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nI have an FT-847 with the good internal preamps. \nThe  ARR  SP432VDG even makes this setup BETTER! \nI use both the internal and SP-432VDG.  Signals are \nmostly VERY good.   Also use a 20 element beam on the downlink. \n\nWhen I say VERY good, I mean  over S9 a lot of the time and all \nover the place between zero and 60 over 9.   That way, you don't have to \nbe so careful in aiming the antenna, and you can hear the birds basically\n100% of the time. \n\nIf the signal goes down a few S-units you can move the antenna and get it\n\nback up again.   Without all that, when it goes down a few S-units, it's\nGONE! \n\nRegarding the power cable, I have been using two of these preamps for\nyears \nand years with a small cable attached and no problems. \n\n\n73\nJohn K6YK\n\n\nOn Mon, 31 Mar 2008 14:03:10 -0500 \"Alan\" <[email protected]> writes:\n> Very timely discussion for me as the snow sloooowwly disappears and \n> the\n> return of the Canada geese and robins signals the time for tower \n> work :-)\n> \n> Some previous comments suggest that a preamp near the rig is not\n> significant, but, I suggest otherwise as my Ft-847 internal preamps \n> can make\n> a significant difference in RX.  Anecdotal, not empirical, but I can \n> hear\n> the diff at the push of a button.\n> \n> Now, I am consider mast mounted preamps as an alternative to my \n> FT-847\n> internal preamps for one of my sites. I run Landwehr VHF and UHF \n> preamps at\n> 2 other locations and they are terrific!  They are also almost 20 \n> years old\n> and no longer available :-(\n> \n> The preamps on the AR2 site look like what I could use.\n> \n> My questions are...  Is the sequencer\n> \n> http://www.advancedreceiver.com/page20.html\n> \n> really necessary or recommended when using the MSP432VD-25 or \n> MSP144VDG-25\n> preamps?  My first thought is NO.  15-20 years of use of 4 Landwehr \n> preamps\n> without a sequencer is my rational.\n> \n> Finally, does anyone have a nice \"warranty voiding\" hack to get \n> around the\n> these different power connectors we see on indoor preamps and down\n> converters such as my KEPS http://www.keps.it/images/13lnc72db_m.jpg \n> ?\n> Instead of soldering to the pin and a ground lug\n> \n> http://picasaweb.google.com/ve4yz.alan/24Ghz/photo#5172119570416133618\n> \n> Something as simple as removing the connector from the case and \n> running a\n> cable through the remaining hole, soldered internally with something \n> like\n> Anderson Power Poles at the other end for 12VDC?????  I'm going to \n> do it one\n> day, but would rather have someone else confirm that it would work \n> without\n> adversely effecting performance characteristics.  No guts; no glory \n> here.  \n> \n> \n> Thanks for any feedback\n> \n> 73, Alan VE4YZ\n> EN19kw\n> AMSAT LM 2352\n> http://www.mts.net/~ve4wsc/\n> AMSAT A-485\n>  \n> \n> \n> _______________________________________________\n> Sent via [email protected]. Opinions expressed are those of the \n> author.\n> Not an AMSAT-NA member? Join now to support the amateur satellite \n> program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n> \n> \n",
    "attachments": []
}