Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/RLKQHNFVOFZ6DC66UXZRT6JAWNWB7WAZ/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "CAHKCqnBgYhjBK6e-4TVg2zMvRc0eVO4xAbhJ=JtD62YdwFO3Zw@mail.gmail.com",
    "message_id_hash": "RLKQHNFVOFZ6DC66UXZRT6JAWNWB7WAZ",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/7M34OFTWQU54XX6GEZLXGLFEPNMUDLTK/?format=api",
    "sender": {
        "address": "mjohns+K0JM (a) luther.edu",
        "mailman_id": null,
        "emails": null
    },
    "sender_name": "Mark D. Johns",
    "subject": "Re: [amsat-bb] input power question",
    "date": "2019-06-16T13:46:55Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/7M34OFTWQU54XX6GEZLXGLFEPNMUDLTK/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JEOXEUJ5SRG75IAMO5LL3ZXK4ELUTAK5/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "This is a very common issue for newcomers to the linear satellites.\nAlmost every pass, there is someone calling CQ over and over again\nwith a loud signal, but completely oblivious to the several stations\ntrying to answer them.\n\nDownlinks on the linear satellites, especially on UHF, are MUCH weaker\nthan on the FM satellites. Remember that the transmit power of the\nsatellite is being distributed across an entire passband that many\nstations are sharing -- unlike FM, where all the power is just on one\nfrequency for one station at a time (ideally).\n\nYou are going to need the best, low-loss feedline you can afford for\nUHF, and that feedline needs to be as short as possible. If your\nfeedline is more than about 50 feet (or about 15 meters) you are going\nto want to have a pre-amplifier very near the antenna. A good pre-amp,\nwith RF switching so that you don't accidentally blow it up by\ntransmitting through it, can be had for less than $150 from several\nmanufacturers. Or, there are designs around to roll your own, if you\nare good at that sort of thing.\n\nGood luck, and hope to work you on the linear sats very soon!\n--\nMark D. Johns\nKØJM / MØGZO / ex-9H3DJ / ex-KØMDJ\nBrooklyn Park, MN USA   EN35hd\n-----------------------------------------------\n\"Heaven goes by favor; if it went by merit,\n   you would stay out and your dog would go in.\"\n    ---Mark Twain\n\nOn Sun, Jun 16, 2019 at 7:26 AM WB8PFZ via AMSAT-BB <[email protected]> wrote:\n>\n> I have completed my sat station but am having trouble hearing myself. I have checked cables and antenna ( M2) sat antenna. All seems well with low SWR. I can hear on the 2 meter downlink. How much power is needed on the UHF uplink? Hope to figure this out shortly. This is being done on the SSB sats. Thanks Mike WB8PFZ\n> _______________________________________________\n> Sent via [email protected]. AMSAT-NA makes this open forum available\n> to all interested persons worldwide without requiring membership. Opinions expressed\n> are solely those of the author, and do not reflect the official views of AMSAT-NA.\n> Not an AMSAT-NA member? Join now to support the amateur satellite program!\n> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb\n",
    "attachments": []
}