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{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/45XNK3FSBV7T4E6YIBBL6SOJGKK5SMEZ/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "45XNK3FSBV7T4E6YIBBL6SOJGKK5SMEZ",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/3OWG6U46LK46N5Q5XN2BAHIRDGW24TYS/?format=api",
    "sender": {
        "address": "seb (a) wintek.com",
        "mailman_id": "334792c18f7f4268a405ca1814e93bd0",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/334792c18f7f4268a405ca1814e93bd0/emails/?format=api"
    },
    "sender_name": "Stephen  E. Belter",
    "subject": "[amsat-bb] Re: Probably a silly idea...",
    "date": "2012-01-18T17:07:40Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/SYEMIAO54KIQ4ISCBJMDV37RWDM7QKKK/?format=api",
    "children": [
        "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/JUVHZLMM52KMULV7OIEDFBWXZ3L3L56L/?format=api"
    ],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Raydel:\n\nUnfortunately, nothing concerning the ISS is easy.\n\nThe ISS has had problems with radio frequency interference (RFI) in the past, and an RFI problem could affect the docking of supply vessels (e.g., a collision) or spacewalking astronauts.  Astronaut safety is paramount.  As a result, all non-critical radios (including ham radios) are turned off during docking, repositioning of the Soyuz escape capsules, and space walks.  So a hitchhiking amateur satellite would need to be *reliably* remote controllable from inside the ISS and maybe from the ground too.\n\nIt should have been simple, but one *major* component of both SuitSat and ARRISat was the triple redundant timer that kept the transmitters off for 15 minutes after 3 toggle switches were turned on.  This allowed the satellites sufficient time to travel away from the ISS before the low-power transmitting began.\n\nCatching a ride on an unmanned rocket is difficult and expensive.  Getting to the ISS and on any manned mission is near impossible.  It is a real credit to the dedicated volunteers of AMSAT that we've ever been on board the shuttle or ISS.\n\n73, Steve N9IP\n--\n-----Original Message-----\nFrom: [email protected] [mailto:[email protected]] On Behalf Of Andre\nSent: Wednesday, January 18, 2012 11:42 AM\nTo: [email protected]\nSubject: [amsat-bb] Re: Probably a silly idea...\n\nOp 18-1-2012 17:06, Raidel Abreu Espinet schreef:\n> Hi all,\n>\n> This is probably a silly idea but who knows....\n>\n> ARRISat-1 was a wonderfull satellite but with a short life. The ISS instead is a wonderfull platform, of course I know how difficult is to install inside it new radios and antennas for cross-repeaters, but how difficult is really to take a small box and firmly attach it to some low risk part of the ISS, the satellite-box will use its own power solar cells and antennas and the ISS is just the carrier.\n>\n> It may be something silly but probably not difficult, if the astronauts made a \"hand launch\" with ARISSat-1/KEDR why can not them just hold it with latches in a low risk part of the ISS. Of course if a battery is a risk we can just design a simple system capable of work only in sun light.\n>\n> If you think this is a bad idea, just ignore it, if not, well who knows, may be some day an astronaut attach an small satellite in the ISS side....\n>\n> 73,\n> Raydel,\n> CM2ESP\n> Este mensaje ha sido enviado mediante el servicio de correo electronico que ofrece la Federacion de Radioaficionados de Cuba a sus miembros para respaldar el cumplimiento de los objetivos de la organizacion y su politica informativa. La persona que envia este correo asume el compromiso de usar el servicio a tales fines y cumplir con las regulaciones establecidas.\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>\nNot a bad idea, in fact it has been done before and at one time was planned a seccond time, lookup pcsat 2 and pcsat 3.\nNot sure why pcsat 3 never flew, from what I understood it was ready to go awaiting rfi aprovement.\n\n73 Andre PE1RDW\n_______________________________________________\nSent via [email protected]. Opinions expressed are those of the author.\nNot an AMSAT-NA member? Join now to support the amateur satellite program!\nSubscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n\n",
    "attachments": []
}