Conference 7.286::space

    try the SWL notes files on node PARITY
    also the SEPT issue of Monitoring Times (MT)
    has a special on freqencies used by both the
    Shuttle and Ground base support, including both
    vhf, uhf, shf, and hf.  If you can not get a
    copy of MT I will copy the new freq and add it
    to the SWL notes files
    john
    

    	Though they are probably out of date, I did DIR/TITLE=topicname
    and came up with Notes on Space Shuttle transmission frequencies
    at Topics 58, 105, and 131.
    
    	Larry
    

    Thanks, thats exactly what I was looking for.
    
                                                  Bye
                                            Harrie Nillissen
                                       
    

    As Radio-Am. I have tried to pick up those frequencies and got very
    poor results.
    
    The normal all-band commercial receivers are not (generally) sensitive
    enough to pick up these relatively low poer transmissions.
    To get acceptable results you would need special antennae like helix
    type or dish type coupled with some tracking (acurate) device.
    
    I succeeded once only in getting  a MIR transmission during a couple
    of minutes when the complex was over-flying Central Europe.
    
    Of course it would be nice to be able to follow the conversations
    from astro- or cosmo-nautes revolving over our heads.
    But the reality is somewhat disappointing.
    
    Would gladly exchange experience with you (ref .0 note originator).
    
    
    Charles Aubert  at GEO Geneva EHQ.
    
    
    

    re:4
    
    I find that a simple turnstyle with a low nosie preamp
    (one made for the 2 meter band DRESLER ?? spelling)
    is all one needs for good MIR communicaions reception.
    
    For beter results use a two meter circular pol. beam
    made for the Amateur two meter satellite band. That and
    the pre amp will allow one to do almost as good as the
    Soveit Tracing Ship.  The Soviets Tracking ship use
    a Helix ant on a gun mount, I have seen two and
    four arrays of helix used on different ships but they
    need the extra gain as they are using WBFM.  With NBFM
    one will have to correct for the doppler but a gain
    of 5 db and a peramp with a NF of < 1db will be all
    that one needs. Azmuith and Elevation control would be
    needed if one puts up a large antenna so I sould 
    suggest starting with a simple turnstle or a 4 or 
    5 element beam and the best preamp you can buy or
    make.  One trick if you dont have tracking control
    would be point the ant at the best position between
    you and where the ground station or tracking ship is,
    also this allows one to set the freq to best compensate
    for the doppler shift.
    
    Rubber ducks and typical scanner whips will only give
    you a few brief sec or min of communicaitions with
    MIR but are useful.  MIR is not always in range of a tracking station,
    so there may never be any communications that you can
    receive.  One exception to this however , may be during the
    docking and undocking process of the the Soyuz TM
    unit and MIR, one may want to check 121.750 MHZ FM
    and 143.625 MHz FM for two way communications between
    the spacecraft.
    
    john
                   
                                          

Newsgroups: sci.space.shuttle,rec.ham-radio
Path: decwrl!ucbvax!pasteur!ames!haven!mimsy!aplcen!aplcomm!stda.jhuapl.edu!mjj
Subject: Re: Shuttle Frequencies Wanted
Posted: 16 Sep 88 20:02:41 GMT
Organization: JHU-Applied Physics Laboratory, Laurel, MD
Xref: decwrl sci.space.shuttle:1275 rec.ham-radio:6792
 
    In article <[email protected]> [email protected]
  (Charles Guest  RCE) writes:

>I would like to know of any plans to rebroadcast the Space Shuttle 
>communications for the next flight...late sept(?).
 
    According to latest information I have, these are the frequencies
to be used by WA3NAN at Goddard Space Flight Center, Greenbelt, MD: 
 
  3.960 MHz
  7.185 MHz
 14.295 MHz
 21.295 MHz (recently changed from 21.390 MHz)
 28.650 MHz
147.450 MHz
 
    I regret ignorance of the downlink details or the shuttle-borne
ham equipment.  Contact GSFC for more information. 
 
    Marshall Jose, WA3VPZ
    [email protected]  || ...mimsy!aplcen!aplvax!mjj