Email Detail

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/BRIKFJYKVOEXYBBUEDTUJC2WU45G2RSF/",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/",
    "message_id": "[email protected]",
    "message_id_hash": "BRIKFJYKVOEXYBBUEDTUJC2WU45G2RSF",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/ZKDJQCSOEQMBOBWCOXARXTZC4CWWGF33/",
    "sender": {
        "address": "tnetcenter (a) gmail.com",
        "mailman_id": "05366e6d2c0a49ddb2ff91e355667842",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/05366e6d2c0a49ddb2ff91e355667842/emails/"
    },
    "sender_name": "Jeff Moore",
    "subject": "[amsat-bb] Re: Subject: Was, Is there anyway to get a linear transponder on the ISS?",
    "date": "2013-06-03T07:10:22Z",
    "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/ZKDJQCSOEQMBOBWCOXARXTZC4CWWGF33/",
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Notwithstanding the difficulties and complexities of getting something \nup to and installed on the ISS, why would we want to put an obsolete \nradio up there anyway?\n\nSeems to me that a TM-D710 would be a much better replacement for the \nD700.  For one thing, it has a built in cooling fan which should take \ncare of the cooling concerns.  It's obviously not a linear transponder, \nbut then most hams don't have the equipment to use one anyway while most \nof us have VHF and UHF FM equipment.\n\nCoupled with a laptop, it could be used for WL2K comms, APRS and \nstraight up packet in addition to plain old voice comms.\n\nJeff Moore  --  KE7ACY\n\nOn 6/2/2013 6:23 PM, K5VOU wrote:\n> Thanks for all the input regarding the FM 'repeater' on the ISS. \n> Further research into the issues has enlightened me on the \n> machinations of getting things done on the ISS and the complicated \n> processes of working with such varied national interests.  It is \n> obviously way above my pay grade and with these comments I sadly end \n> the quest with a feeling of not going anywhere.\n>\n> The Kenwood TM-D700 portion of the Phase 2 Hardware system is \n> apparently overheating.  Possibly because of a lack of airflow over \n> the heat sinks.  Possibly because when it is made available, the duty \n> cycle rises to near 100% and the unit consumes too much power from the \n> ISS power budget. Since the other parts of the Phase 2 system are \n> fulfilling the needs of the ISS and NASA agenda, there are no \n> resources available to correct the problems with the TM-D700. Indeed, \n> replacing it with a linear transponder of equal bandwidth and much \n> reduced power consumption may be a much better solution but there do \n> not appear to be any benefits to the ARISS program to drive the \n> solution.  There was a mention in the paper produced circa 2002-3 of a \n> third phase of the ARISS hardware system to be mounted outside but no \n> mention of such a program since then has been located.\n>\n> Should others want to pursue a program of getting a linear transponder \n> mounted on the outside of the ISS, I wish you luck and refer you to \n> the document;\n> \"Amateur Radio on the International Space Station -  Phase 2 Hardware \n> System\" by Frank H. Bauer, KA3HDO, Lou McFadin, W5DID, Bob Bruniga, \n> WB4APR, and Hiroto Watarikawa.  Sergej Samburov, RV3DR was also listed \n> but this call sign now returns as belonging to Energia in Russia. The \n> document was found at http://www.ariss-eu.org/phase_2_document.pdf\n> on the internet.  Frank is a new Amsat VP in this area, Bob is a \n> participant in this list and Lou is still around too I think. Maybe \n> one or all of them can help.\n>\n> 73,\n>\n> Tom K5VOU\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 \n> program!\n> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb\n>\n\n",
    "attachments": []
}