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GET /hyperkitty/api/list/[email protected]/email/G5WJ5M4VHARJ6LEFQSG4ZWZGUPHXLJ4A/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/G5WJ5M4VHARJ6LEFQSG4ZWZGUPHXLJ4A/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "G5WJ5M4VHARJ6LEFQSG4ZWZGUPHXLJ4A", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/NHX6X5EKQIQSZSS634TXEOLCBVH3Q3HB/?format=api", "sender": { "address": "K3IO (a) verizon.net", "mailman_id": "79a9b3ddaa4b44baae47f92374974ac4", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/79a9b3ddaa4b44baae47f92374974ac4/emails/?format=api" }, "sender_name": "Tom Clark, K3IO", "subject": "[eagle] Re: Eagle 10 MHz Clock", "date": "2007-04-10T03:52:15Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/N2MTLNMXZ7CXS4BERHPB6RBNB63N4B4R/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BKSAJBFHITVQQSNQ52MLHHTVSP5YGOQR/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Bill Ress wrote:\n> 1) What is the reason for requiring all LO's to be locked to a 10 MHz \n> satellite system clock or are they?\n>\n> \nThat requirement comes from me. It is my fervent hope that we will be\nable to use the transponders for accurate coherent s/c ranging;\ntherefore we want the TX and RX LOs to be related to a common (high\nstability) reference. There are also some (undocumented) desires (that\nmay re$ult in $ome project $upport) to use the microwave transponders\nfor high accuracy, intercontinental time & frequency synchronization.\n> 2) Have the performance specifications for the 10 MHz clock been \n> developed and what are they (in particular phase noise, frequency \n> stability, susceptibility to digital hash, and power level available to \n> each using subsystem - to name a few)?\n>\n> \nMy desire, if it can be promoted (from unnamed $ource$), to use what is\noften called an Ultra-Stable Oscillator (USO) of the type carried on a\nnumber of interplanetary s/c. I envision us being able to tweak the\nfrequency slightly under ground command (i.e. a D/A converter built into\nthe USO).\n> My apologies for sending to the entire Eagle list but I'm not sure who \n> has the responsibility for the clock.\n>\n> \nSystem level responsibilities are up for grabs AFAIK. So far, my\ncontribution has been to say \"It would tremendously augment capabilities\nif ...\".\n\nPlease keep asking these questions! 73, Tom\n\n", "attachments": [] }