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Lets reduce false suitsat reports



ISS Amateur Radio Status: February 17, 2006

Topics:

Lets try to reduce false Suit Sat signal reports.

By Miles Mann WF1F,

MAREX-MG News   www.marexmg.org
Manned Amateur Radio Experiment

As most of you know, the ERP level of Suit Sat is much
lower than planned.  The Bigger your receive antenna
the better.  If you do want to post a signal report
with what you heard, great.  Even better if you are
able to decode some Telemetry information.
However, if you do not  Hear Suit Sat, then is most
likely that you just did not hear the Suit Sats 1 to
10 milliwatt signal.  There is no real need to post
information at this time if “You did NOT hear”
SuitSat.  It looks like SuitSat will last another week
or so.

Specifically what we need is the following:

SuitSat will speak this information 30 seconds after
the SSTV image Stops transmitting.

This is SuitSat-1 RS0RS
Mission time is:
The temperature is: 21 degrees Celsius
The Battery voltage is: 27.4 Volts

Date and time UTC you heard this data.
Location:  where you are when you head this data.
Also included your station information

Example:
RX Icom-910, 1x9ele V-pol Yagi

or

FT-736, 1x22ele CP yagi


If you hear CW, get ready to decode SSTV.  The order
will be a DTMF tone, followed by the CW ID and then
SSTV.  This is also a good time to listen for the
System Telemetry.  The Telemetry comes 30 seconds
after the SSTV image.  Then the whole process repeats.

Here is what many stations are using:
Antenna, High gain, 10+ dBd at least. (Circular
polarized antennas work better)
AZ/EL Rotor system
Mast Mounted Preamp
Very close pass, better than 40 degrees

Several Stations have been able to detect audio
fragments with hand held yagi’s

How big is my antenna in Gain?
Just count the number of dipole elements that are
one/half wave long
1 = 0 dBd
2 = 3 dBd
4 = 6 dBd
8 = 9 dBd
16 = 12 dBd




SuitSat 1 Voice Summary
June 8, 2005
 
Message Type                     Time              
Running Time
Voice ID                                 00:04.9      
    00:04.9
Rekto-mai                              00:28.8        
  00:33.7
            Russian Message
Pause                                     00:30.0     
     01:03.7
 
Voice ID                                 00:04.9      
    01:08.6
Suitsat_eu                              00:14.4       
   01:23.0
            European Student Message (Spanish and
German)
Pause                                     00:30.0     
     01:53.0
 
Voice ID                                 00:04.9      
    01:57.9
Rekto-mtgu-bauman             00:29.8          
02:27.7
            Bauman Institute Message (Russian)
Pause                                     00:30.0     
     02:57.7
 
Voice ID                                 00:04.9      
    03:02.6
Canada                                  00:18.3       
   03:20.9
            Canada Student Message (French)
Pause                                     00:30.0     
     03:50.9
 
Voice ID                                 00:04.9      
    03:55.8
Alexandrov Energia 00:28.1           04:23.9
            Mr. Alexandrov Message (English)
Pause                                     00:30.0     
     04:53.9
 
Voice ID                                 00:04.9      
    04:58.8
Japan                                     00:17.6     
     05:16.4
            Japan Student Message (Japanese)
Pause                                     00:30.0     
     05:46.4
 
Voice ID                                 00:04.9      
    05:51.3
USA                                        00:16.1    
      06:07.4
            USA Student message (English)
Pause                                     00:30.0     
     06:37.4
 
Voice ID                                 00:04.9      
    06:42.3
SSTV                                      00:43.9     
     07:26.2
Pause                                     00:30.0     
     07:56.2
 
Voice ID                                 00:04.9      
    08:01.1
Telemetry                               00:15.0       
   08:16.1
                       Mission time is: 6607 minutes
                       The temperature is: 12 degrees
Celsius
                       The Battery voltage is: 26.4
Volts
 
Pause                                     00:30.0     
     08:46.1
 
 
 
Voice ID            = This is suitsat-1 amateur radio
station RS0RS
 




ARISS SuitSat Details
http://www.amsat.org/amsat-new/articles/BauerSuitsat/index.php

What is Slow Scan TV?
On this web page you will find many links to help you
learn more about
Slow Scan TV
http://www.marexmg.org/fileshtml/sstvlinkpage.html

Tips on how to use ISS, SSTV, Packet and Voice
http://www.marexmg.org/fileshtml/howtouseiss.html

Location of Hardware on ISS
This link will show you images of some of the amateur
radio hardware
already installed on ISS 
http://www.marexmg.org/fileshtml/radiohardware.html

Marexmg Web page
http://www.marexmg.org


73 Miles WF1F MAREX-MG

Until we meet again
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