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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/76CA7YW2VKAYT45G6DTBRBEKUAOJEHGI/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "76CA7YW2VKAYT45G6DTBRBEKUAOJEHGI",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/6ASE4ASHZFON3WWYYFEWBF6STQPW2GZ5/?format=api",
    "sender": {
        "address": "nate (a) natetech.com",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Nate Duehr",
    "subject": "[amsat-bb] Re: Where can I buy pre-made feedline?",
    "date": "2007-12-07T04:17:36Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/M7LN6OCJDYW5TWZQJNNMIMZWQUNHE2ZS/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "\nOn Dec 6, 2007, at 6:25 PM, Rick Mann wrote:\n\n> So, as it turns out, HRO had a duplexer with an N connector on the\n> antenna side. I just need to see about changing the connector on the\n> antenna (and actually mounting my N-connectors), and I don't have to\n> change the connector on the radio.\n>\n> My PL-259s were all silver-plated. So are the Ns, but they are not\n> crimp-on; I'll still have to solder them. The part that gets soldered\n> is of substantially lower mass than the PL-259, so hopefully it'll go\n> better. Sigh.\n\n\nWho's N connectors are you using?\n\nI've seen N connectors lately that look like PL-259's and have to be  \nsoldered on similarly to RG-8 sized coax.  I tried one.  Pulled on the  \nconnector after soldering it together and it had zero strain-relief  \nfor the cable being pulled on, and it ripped apart.  (Well, the center  \nconductor held on as long as it could).  I wouldn't use those for  \nanything.\n\nThere's three sitting here in the connector box, and I wouldn't wish  \nthem on my worst enemy.  (In fact I should throw them out but I can't  \n-- I'm a packrat and they'll stay there for \"emergencies\" that will  \nnever happen, because I have a small supply of ... see below...)  They  \nwere supposed to \"screw on\" to the jacket of the cable for strain  \nrelief, and they frankly -- didn't.  The cable I was using had a  \npretty stiff outer jacket -- perhaps some \"softer\" RG-8 sized cable  \nwould have worked better, but the \"soft\" stuff I have (some no-name  \nRG-213) was not high enough quality that I wanted to use it for an  \noutdoor run.\n\nI have switched to LMR-400 and crimp N connectors put together with a  \ngood quality crimp tool for the VHF/UHF rover station in the Jeep, and  \nhaven't had a lick of trouble from any of those cables or connectors  \nat all, in pretty harsh vibration and movement conditions.  (The  \ncables and things aren't fully \"tied down\" and things move in the  \nshelf while I'm driving... not a lot, but the cables get flexed and  \nmoved and nothing has come apart yet.  A Jeep on a dirt back road is  \npretty bumpy too... everything gets a good \"shakedown\" cruise, so to  \nspeak.\n\nI think the investment in a good quality RF connector crimp tool, the  \nuse of Amphenol or other best-quality connectors (even when they're  \nmore expensive), and the good quality cable in the LMR-400 really  \nhelps make getting the rover ready to go or make changes a snap.  For  \na more permanent installation, the connector would just need to be  \nweatherproofed as needed.\n\nWe've been using crimped N connectors on repeater equipment using  \nLMR400 for jumpers (not for the run up the tower, and LMR400 has been  \nknown to cause noise in duplexed transmit and receive repeater  \nservice, so we're limiting its use to short connections indoors) with  \nmodern crimp connectors when done right with proper cable stripping  \ntools, crimp tools, and care of workmanship, work VERY well and  \nexhibit some better qualities to me these days over the solder-on  \nconnectors.\n\n--\nNate Duehr, WY0X\[email protected]\n\n\n\n",
    "attachments": []
}