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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TP3QZBGOQV65APVGU64KCYSEJGDZD4OV/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "TP3QZBGOQV65APVGU64KCYSEJGDZD4OV",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/B6WIFDLCXTNNJAFPQDLFVMFXYBEUF462/?format=api",
    "sender": {
        "address": "glennmaillist (a) bellsouth.net",
        "mailman_id": "9677ac3fd61446a98cdc2cafdc18ac14",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/9677ac3fd61446a98cdc2cafdc18ac14/emails/?format=api"
    },
    "sender_name": "Glenn Little WB4UIV",
    "subject": "[amsat-bb] Re: ground rod/plate bonding question",
    "date": "2007-11-24T22:32:05Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/X4U35TSTJXUN2VSYUUZXO6UZ7M6XKK6K/?format=api",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Tyler\n\nDo a google search for MIL-HDBK-419. This should answer all you questions.\n\nIs the copper strap solid or braided? Braided is no good for a lightning \nground. Lightning prefers the least inductive, closest path to ground. \nBraid is inductive to lightning due to the way it is made. Lightning is NOT \na DC event. It is a HF AC event.\n\nCad weld the grounds to the rods and the ground window, eliminate any doubt \nas to how good the connection is.\n\nIs this ground window bonded to the service entrance ground? Is it bonded \nto the tower ground?\n\nIf not it should be. You need to keep the ground potential of all three \nplaces the same. If lightning hits the power line and the grounds are not \nbonded together, the antenna ground will not be at the same potential as \nthe power ground and current will flow. How much depends on the magnitude \nto the discharge. Will the equipment survive, depends on the magnitude of \nthe discharge.\n\nNothing will survive a direct hit.\n\nIn a former job, I had to evaluate remote sites that had lightning damage. \nIf the site owner followed my suggestions, lightning damage was minimal. If \nnot, they continued to have damaged equipment due to differences in grounds.\n\n73\nGlenn\nWB4UIV\n\n\n\nAt 02:59 PM 11/24/07, Tyler Harpster wrote:\n>Hello!\n>\n>I am going to install a large brass plate at the cable entrance to my shack.\n>I have a large ground rod outside the entrance where everything is going to\n>be grounded.  I'm planning on using a large piece of copper strap to connect\n>the plate to the rod.\n>\n>Is there any substance I can use to clean/prep the copper and the brass?  Is\n>there a material to use between the two metals to keep them from oxidizing\n>and keep the bond in good condition?\n>\n>Thanks\n>\n>Tyler\n>KM3G\n>\n>_______________________________________________\n>Sent via [email protected]. Opinions expressed are those of the author.\n>Not an AMSAT-NA member? Join now to support the amateur satellite program!\n>Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n\n",
    "attachments": []
}