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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JY4URJWQWT46NXCY3BME7HQAFTHOYPN4/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "JY4URJWQWT46NXCY3BME7HQAFTHOYPN4", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/2A6XCU6JZG7FGIGHDULSE2IPEF4676Q4/?format=api", "sender": { "address": "rwmcgwier (a) comcast.net", "mailman_id": null, "emails": null }, "sender_name": "Robert McGwier", "subject": "[eagle] Re: The thorny issue of SDX/Analog linear transpnder", "date": "2006-10-03T05:05:18Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/GFEXBLZJIN7ZWKRBBN7BTGN3JQ5QCBMU/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/6NWKOL5QJ4YOGVHLGB3YZUYJ7RJTNYQR/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "I think the issue is that people are worried about radiation damage to \nthe SDX CPU. If the DSP dies so are we. We really need to subject that \npuppy to a brutal amount of radiation in our testing and indeed test to \ndestruction.\n\nBob\nN4HY\n\n\nMatt Ettus wrote:\n>> \n>>\n>> \n>>> I know that the current documented thinking is to have two SDX's and no\n>>> analog transponder, however we did say we'd bring up for discussion at a\n>>> telecon prior to the Symposium. I know that this was brought up in July 2005\n>>> where it was clear that the answer to the members was yes, we'd have a\n>>> backup _analog_ linear transponder.\n>>> \n>>>\n>>> \n> Why stop there? We should have a backup to the analog transponder in \n> the form of a CW transponder. Then we can back that up with a spark \n> transponder. Finally, we should have some sort of semaphores or smoke \n> signals to back that up.\n>\n> Seriously, if we have 2 SDX's, aren't they backups for each other?\n>\n> Matt\n>\n> _______________________________________________\n> Via the Eagle mailing list courtesy of AMSAT-NA\n> [email protected]\n> http://amsat.org/mailman/listinfo/eagle\n>\n> \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": [] }