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/XE4FTU7UKRT6KVTX5CZXTXU4ZTVMTU5A/?format=api",
    "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api",
    "message_id": "[email protected]",
    "message_id_hash": "XE4FTU7UKRT6KVTX5CZXTXU4ZTVMTU5A",
    "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/XE4FTU7UKRT6KVTX5CZXTXU4ZTVMTU5A/?format=api",
    "sender": {
        "address": "AJ9N (a) aol.com",
        "mailman_id": "6748fe033a084371b465a1468321b4ea",
        "emails": "https://mailman.amsat.org/hyperkitty/api/sender/6748fe033a084371b465a1468321b4ea/emails/?format=api"
    },
    "sender_name": "[email protected]",
    "subject": "Re: [amsat-bb] ISS Contacts",
    "date": "2015-04-06T23:52:58Z",
    "parent": null,
    "children": [],
    "votes": {
        "likes": 0,
        "dislikes": 0,
        "status": "neutral"
    },
    "content": "Hi all,\n\nARISS school contacts are  performed on confidential uplink frequencies and \nall use the public downlink of  145.8 MHz.  We incorporate multiple sets of \nconfidential uplink frequencies  just in case the primary is experiencing \nQRM.  For obvious reasons, that is  as much as I am going to tell you about \nthe uplinks.  The public uplink  frequencies that are posted are for general \ncontacts.\n\nWe have had  interference in the past that was accidental, some flat out \ndeliberate, and some  that would be considered deliberate.  In some parts of \nthe world, the 2m  band is being illegally used by taxi cabs and who knows \nwhat else.  Over  the course of the years, we have had to move our uplink \nfrequencies around due  to the continued interference.  \n\nDon't forget that the ISS can hear  a lot more than those of us on earth.  \nSo what you may think is not a  problem locally, could be a big time issue \nfor the crew.  Your footprint  radius may be 100 km or so; theirs is about \n2400 km.  They sort of have a  really nice antenna height.\n\nAs for possible Field Day operation by the  crew, that is anyone's guess.  \nWe tell the crew the dates and times and it  is up to them to decide whether \nto participate or not.  We can not make  them participate.  The only thing \nwe can suggest is to listen and if you  hear the ISS on during FD, then go \nfor it.  The same goes for just general  listening.  If you hear them, then \ngo for it.  You do need to be aware  of the FM capture effect and do make use \nof Doppler correction.  For the  ARISS school contacts, we present a \nproposed list of times for the schools to  prioritize so that we can give them to \nthe ISS planners and hopefully have one  get scheduled.  Those times are in \nthe 08:00 to 19:30 UTC timeframe.   So that will give you an idea of when \nsomeone could possibly be on.\n\nHope  this helps a bit.  Just remember that ham radio is only a guest on \nthe  ISS.\n\n73,\nCharlie AJ9N\nOne of the ARISS mentors\n\n\n\nIn a  message dated 4/6/2015 2:00:39 P.M. Pacific Daylight Time, \[email protected]  writes:\nInfo on frequencies  here.\n\nhttp://www.ariss.org/contact-the-iss.html\n\nI think they also  have a backup frequency that is not published. They\nhave had interference on  both uplink and downlink in the past possibly\naccidentally. The exact time of  school contacts and normal downlink\nfrequency is usually very well advertised  in the country where the\ncontact will take place.\n\nSometimes, including  one recent contact in Italy they actually\nre-attempted the contact at the  next pass 90 minutes later as there\nwas interference. They try throw lots of  power and gain on the uplink\nin an attempt to drown out any accidental or low  power interference.\n\nOn 06/04/2015, Daniel Estévez  <[email protected]> wrote:\n> El 06/04/15 a las 17:12, John Brier  escribió:\n>\n>> fwiw, I do know not to interrupt during scheduled  ARISS contacts. I\n>> was telling someone else who responded to me that  it was a good thing\n>> they don't publish the uplink frequencies not  only so people don't\n>> intentionally try to take advantage of the  situation, but also so\n>> ignorant (and excitedly blind people like me)  don't interfere.\n>\n> Sorry if this has been asked before, but are  not the uplink frequencies\n> 145.20 for region 1 and 144.49 for regions 2  and 3? Or do they use\n> different uplink frequencies for scheduled  contacts?\n_______________________________________________\nSent via  [email protected]. AMSAT-NA makes this open forum available\nto all  interested persons worldwide without requiring membership. Opinions \n expressed\nare solely those of the author, and do not reflect the official  views of \nAMSAT-NA.\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": []
}