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GET /hyperkitty/api/list/[email protected]/email/7AEPBTLLLKXPJ4BJP75HIUAQKZEN5IOO/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7AEPBTLLLKXPJ4BJP75HIUAQKZEN5IOO/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "7AEPBTLLLKXPJ4BJP75HIUAQKZEN5IOO", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/7AEPBTLLLKXPJ4BJP75HIUAQKZEN5IOO/", "sender": { "address": "w4jbb (a) charter.net", "mailman_id": "eb1ca16d0fb04942b253a5dbb9f7181b", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/eb1ca16d0fb04942b253a5dbb9f7181b/emails/" }, "sender_name": "Joel Black", "subject": "[amsat-bb] Almost There", "date": "2014-01-05T00:42:58Z", "parent": null, "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/LCEUG6F2I2AXGFFP4OCNG6KOF3KSCU43/" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "After a rocky start to my Christmas Vacation (I fell off a ladder while \npruning limbs from a tree - nothing broken, just banged up and bruised), \nI almost have my satellite station back on the air.\n\nAfter doing some selling and horse-trading, I am back in possession of \nmy FT-847 that I sold to my dad.\n\nAfter cleaning out my storage building, I found a couple of fairly long \nruns of LMR400UF. I need to measure them, but I think it is more than \nenough to get me outside and up the mast.\n\nI also have a U-100 control box thanks to someone on the list.\n\nI operate an iMac with Mac OS X 10.9.1 so, for now, I am using SatPC32 \non my virtual machine. I have played around with MacDopplerPro, but it \nlocks up on my computer continuously. I don't know if it has something \nto do with the USB-to-serial converter (I *do* have a null modem cable \nbetween the USB-to-serial converter and the FT-847), or if MDP is just \nlimited in the unregistered version. The USB adapter works fine with my K3.\n\nLet me ask a question about the Arrow Antenna. Someone mentioned Elk \nAntennas and, while I'm sure it's a fine product, I am already in \npossession of the Arrow. I've done a lot of reading and without getting \ninto the arguments about Arrow vs. Elk and length of elements, etc., \nelement isolation, and published vs. unpublished gain amounts let me \ntell you what I'm thinking:\n\nFirst, I'm going to eliminate the diplexer. I will not need it for one \nthing. For another, it's limited to 10 W max input. From what I have \nread, my gain will be increased quite a bit. I don't remember the exact \namount, but it's quite dramatic.\n\nSecond, the feed on the Arrow is a gamma match. From my reading, and I'm \nno engineer, for a gamma match to work properly the element(s) (at least \nthe driven element) needs to be grounded. That's fine and, again, I \ndon't want to get into the \"why's\" I just want to make sure I'm correct. \nTherefore, my question is:\n\nIs there any reason I cannot turn the driven element 90 degrees to allow \nfor a better connection to the BNC connector? Maybe not even 90 degrees, \nbut enough to get to the BNC connector without the male connector on the \ncable touching the boom. I want to weatherproof those connections. What \nI'd like to do after I turn the gamma match is feed it with a very short \nlength of LMR240 and then into a preamp. After the preamp, I'll have the \nLMR400UF to run to the FT-847. Most gamma matches I see on commercial \nantennas are on the side of the antenna - if horizontal, they're below \n(or above) the boom; if vertical, it's off to one side. The Arrow is the \nonly antenna I've seen with a gamma match on which the gamma match is \nnot to one side or the other of the boom. I hope I'm making sense.\n\nAnyway, I wanted to let those folks who helped out know that I \nappreciate it and that I'm much closer to being back on the birds than I \nwas a few weeks ago.\n\n73,\nJoel - W4JBB\n", "attachments": [] }