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{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/TOSOL66W7F2ERCSSULSYEHQBYMFPCUES/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "TOSOL66W7F2ERCSSULSYEHQBYMFPCUES", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/TBVHMQLNXN4FRJXVSOER7DICIOOMNTLC/?format=api", "sender": { "address": "rob (a) itr-datanet.com", "mailman_id": null, "emails": null }, "sender_name": "Rob Hardenberg", "subject": "[amsat-bb] Re: The need for telemetry data -or what happened to FO-29-", "date": "2007-05-01T19:15:05Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4G3STSAYYUEUAXE2NS3E5CFBIECORTAL/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/F2LWADINXRRDWDMEWJNOJFTA5GVZKDSX/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "Stefan,\n\nThis system is working for any unproto packet satellite. I'am feeding all my received packets to\nthe aprs2 network. This way anyone connected can see the received telemetry.\nSee the libertad cubesat: http://www.db0anf.de/hamweb/aprsdb/showdata.php?cfrom=5k3l\n\nIt would be nice when more radio amateur would do this\n\n73 Rob PE1ITR.\n\n\nStefan Wagener schreef:\n> Thanks Bob.\n>\n> Point well made for the PCsats.\n>\n> Question: Are you proposing that all future satellites should send telemetry\n> on the APRS frequency to make this system work?\n>\n> Stefan\n>\n>\n>>From: \"Robert Bruninga\" <[email protected]>\n>>Reply-To: <[email protected]>\n>>To: \"'Stefan Wagener'\" <[email protected]>, <[email protected]>\n>>Subject: RE: [amsat-bb] The need for telemetry data -or what happened to\n>>FO-29-\n>>Date: Tue, 1 May 2007 11:03:55 -0400\n>>\n>> > ...One key component of failure analysis is the\n>> > availability of data, especially telemetry.\n>> >\n>> > My question is, can the satellite user community at\n>> > large come up with a system that allows the routine\n>> > capturing of satellite telemetry? Is there a\n>> > role that AMSAT can play? What would it take?\n>>\n>>All of the APRS satellites (PCSAT-1, PCSAT2, ANDE and RAFT) use\n>>AX.25 and beacon their telemetry around the world. Any\n>>telemetry packets, heard by any station that is on the internet,\n>>feeds the packets live into the global APRS internet. Not only\n>>does this make it available to anyone at any time, but the data\n>>is also archived and is available in graphical form over any\n>>date period.\n>>\n>>For example, Simple URL's can be constructed to access and plot\n>>any of the telemetry parameters. See this WEB page:\n>>\n>>http://www.ew.usna.edu/~bruninga/andeTemps.html\n>>\n>>And look at the source code. You will see that each plot is\n>>simply a\n>>URL constructed to access the correct period of data, and to\n>>select the range of values and the labels. This way, this data\n>>can be incorporated into any application. Thanks to the work fof\n>>K4HG, Steve Dimese and the FINDU system.\n>>\n>>This is all hands-off, fully automated, and routine. Not only\n>>does it work for the satellites, but it can also plot all of\n>>this same data for ANY KPC-3+ TNC that is sending periodic\n>>telemetry packets anywhere in the world on any APRS frequency.\n>>For example, this simple URL will plot the telemetry for ANY\n>>KPC-3+ TNC on the air. This one is my local digipeater:\n>>\n>>http://www.findu.com/cgi-bin/tele2.cgi?call=wb4apr-1&last=240\n>>\n>>Just change the ULR callsign to your TNC's callsign (if it is\n>>tramnsmitting its 5 channel telemetry beacons on any APRS\n>>frequency) and you will see it show up here. This is a\n>>fantastic system for quick-and-dirty experiments, since the\n>>global collection and plotting is already done.\n>>\n>>Bob, WB4APR\n>>\n>>\n>\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\n73 Rob PE1ITR\nhttp://www.pe1itr.com\n\n", "attachments": [] }