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GET /hyperkitty/api/list/[email protected]/email/ET5YS7LY2AYDQ6WP4FR2Z6D7KCNLRGHA/
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ET5YS7LY2AYDQ6WP4FR2Z6D7KCNLRGHA/", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/", "message_id": "[email protected]", "message_id_hash": "ET5YS7LY2AYDQ6WP4FR2Z6D7KCNLRGHA", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/ET5YS7LY2AYDQ6WP4FR2Z6D7KCNLRGHA/", "sender": { "address": "rwmcgwier (a) comcast.net", "mailman_id": null, "emails": null }, "sender_name": "Robert McGwier", "subject": "[amsat-bb] Re: S band or any backup?", "date": "2006-09-10T18:41:00Z", "parent": null, "children": [], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": ">\"David wrote:\n\n>It would be good to know that the linear backup plans have not been quietly \n>filed in the waste paper basket. \"\n\nThe SDX will be subjected to really brutal radiation testing. It does sound sweet to have a transmitter and receiver as linear as the SDX can be.\n\nI do not know anyone who is building the fall back piece and while it has not fallen off the table, I don't know who is building it. \n\n\n \n\"Good engineering is important, but planing for the unexpected is vital.\"\n\nIndeed.\n \n \n\"Incidentally. It occurs to me that a disadvantage of having one major UV \ntransponder operating 24/7 is that while that concept removes the need for \ncomplicated scheduling it will occupy 100kHz or so of the 2m band permanently \nwhich may not be totally desirable in a limited 200kHz bandwidth. Presumably with \nEagle 2 and 3 under design / construction at the time of launch they will \nhave differnt bands. - Maybe 2390 - 2400 ish\n\nGood point. The 7/24 plan does include the digital piece in our plans. And yes, we do NOT have to duplicate U/V on follow on birds to Eagle. If P3E goes well and we see no need for another U/V transponder we can indeed do something different on subsequent Eagles.\n \nEnjoying the debate\n \nDavid G0MRF\n\"\n\n-- \nAMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats,\nNJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman\n\"You see, wire telegraph is a kind of a very, very long cat.\nYou pull his tail in New York and his head is meowing in Los\nAngeles. Do you understand this? And radio operates exactly\nthe same way: you send signals here, they receive them there.\nThe only difference is that there is no cat.\" - Einstein\n\n", "attachments": [] }