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SSTV on ISS update oct 6, 2005

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  • ka1rrw
    ISS Amateur Radio Status: October 6, 2005 Slow Scan TV on ISS update By Miles Mann WF1F, MAREX-MG News www.marexmg.org Manned Amateur Radio Experiment Hi
    Message 1 of 4 , Oct 6, 2005
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      ISS Amateur Radio Status: October 6, 2005

      Slow Scan TV on ISS update

      By Miles Mann WF1F,

      MAREX-MG News www.marexmg.org

      Manned Amateur Radio Experiment

      Hi everyone.

      There are currently two projects on board the International Space
      Station that will support Slow Scan TV (SSTV). These project are
      called SuitSat and SpaceCam. The SuitSat project may be activated in
      December 2005 and SpaceCam in 2006 (all dates are subject to change
      without notice). The goal of this series of memos is to get the
      world ready to start decoding SSTV images from Space.

      Here is an excerpt from a AMSAT NEWS SERVICE, ANS-261 Sept 18.

      The Suitsat amateur radio system, coupled with a school artwork
      project, is
      planned to be installed in an outdated Russian Orlon spacesuit. It
      will
      then be deployed from the ISS during an Extra Vehicular Activity
      (EVA, or
      spacewalk). This is expected to occur in the December timeframe by
      the
      Expedition 12 crew. The Suitsat amateur radio system will beam down
      special messages and an SSTV image from within the Orlon space suit
      as it
      floats in space. Suitsat radio system will allow hams and students
      to
      track the suit and decode special international messages, space suit
      telemetry, and a pre-programmed Slow Scan TV image through its
      specially-built digital voice messaging system and amateur radio
      transmitter. As built, Suitsat will be a transmit-only capability
      that
      will run on the space suit's battery power.
      NNN

      http://www.arrl.org/news/stories/2005/09/16/2/?nc=1

      http://www.amsat.org/amsat-new/news/

      The SuitSat project will run on batteries for 2 to 8 weeks, while it
      free floats in orbit as its own satellite. The SuitSat will be
      driven by a Kenwood TH-K2 transceiver and a timing controller box.
      The controller will transmit a series of voice messages, telemetry
      and one Slow Scan TV image (Robot 36 format).. The whole series of
      messages and image is approximately 9 minutes long, and then it
      repeats.

      SpaceCam1:
      The SpaceCam project will also send SSTV images from ISS, however it
      will be mounted Inside the ISS and will be running for several weeks
      at a time and will be able to transmit over 400 SSTV images per day
      (Robot 36 format).

      How to Decode SSTV from Space:
      I am still working on this section and ill post an updated web page
      link soon.
      All SSTV transmissions will be in FM mode and will most likely be on
      the 2-meter band.
      This means that the Doppler frequency drift will not be much of a
      problem and you will be able to use your existing 2-meter station or
      a police scanner to hear and decode the signals from ISS.

      If you have already have been successful in working the Packet
      station or talked to the ISS crew on 2-meter voice, than you already
      have most of what you need.
      What's left is to connect your computer to the speaker of your radio
      and some SSTV decoding software, such as ChromaPix
      http://www.barberdsp.com/ or similar software.

      There are many choices in SSTV software, some Free, others with more
      features cost a few bucks.
      http://www.marexmg.org/fileshtml/sstvlinkpage.html

      So have fun, find your best setup and start practicing how to decode
      SSTV on 2-meters.


      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


      Tip on working ISS on Voice and packet
      http://www.marexmg.org/fileshtml/howtouseiss.html


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

      Information on the crew's activities aboard the Space Station, future
      launch dates, as well as Station sighting opportunities from anywhere
      on the Earth, is available on the Internet at:

      http://spaceflight.nasa.gov/

      73 Miles WF1F MAREX-MG

      Until we meet again

      DOSVIDANIYA Miles WF1F
    • MM
      How to be successful with the ISS Slow Scan TV (SSTV) Imaging system By G. Miles Mann, WF1F MAREXMG for the ARISS-International Team There are currently two
      Message 2 of 4 , Oct 17, 2005
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        How to be successful with the ISS Slow Scan TV (SSTV)
        Imaging system

        By G. Miles Mann, WF1F MAREXMG for the
        ARISS-International Team

        There are currently two projects on board the
        International Space Station that will support Slow
        Scan TV (SSTV). These projects are called SuitSat and
        SpaceCam. The SuitSat project may be activated in
        December 2005 and SpaceCam in 2006 (all dates are
        subject to change without notice). The goal of this
        series of memos is to get the world ready to start
        decoding SSTV images from Space. If you want to get
        Ready for SuitSat and SpaceCam Slow Scan TV, then now
        is the time to start getting ready.

        How to Slow Scan TV from Space, Part 1.

        Slow Scan TV on the International Space Station:
        The ISS Slow Scan TV system will support two-way SSTV
        image transmission. SSTV is a form of sending still
        images via an Analog format by radio. Amateur Radio
        operators have been using SSTV since the 1950’s.
        Today there are many software applications available
        that will allow you to connect your home computer to a
        radio and allow you to decode images from space.

        The Basics:
        The Slow Scan TV system on the International Space
        Station that I will be focusing on is called
        SpaceCam1. The SuitSat Project may be activated
        first, however the functionally is very similar. The
        SpaceCam1 project is a PC based application that will
        be running on board the International Space Station.
        The system will be connected to an Amateur Radio
        transceiver called the Kenwood D700. This radio will
        transmit on the Amateur radio 2-meter satellite band
        from the ISS (The exact uplink and down link
        frequencies will be posted later). The transmission
        mode will be FM (aprox 4k deviation) and will be
        sending images in the Slow Scan TV format called
        Robot-36. When SpaceCam becomes operation, it will be
        transmitting over 400 images per day from the
        International Space Station. The crew will load a
        directory full of still images taken earlier and then
        tell SpaceCam to run “Slide Show”. SpaceCam will then
        keep sending the images from the directory over and
        over again. This will allow people on earth several
        chances to decode all of the images from the directory
        on board the International Space Station.

        The SpaceCam slide show will be configured for a
        specific delay between images. Lets assume the delay
        is set for 3 minutes. The Space Station will pass
        within radio range of your house several times a day
        for up to 10 minutes per pass. During a typical
        10-minute window you will have the opportunity to
        receive 2-3 images per pass.

        SpaceCam & Kenwood D700 System:
        The Kenwood transceiver that has a built in Packet
        modem. This system is located in the Service Module.
        The Kenwood model D700 supports two Amateur radio
        bands: 2-meter FM (144 – 146 MHz) and the
        70-centimeter FM (435 - 438 MHz). The built-in modem
        or TNC supports 1200 and 9600 baud data rates. The
        D700 is currently connected to one of the 4 Amateur
        Radio antennas mounted outside of the Service Module.
        The typical power output of this system is 5, 10 or 25
        watts. The Kenwood D700 system was activated in
        December 2003. The D700 will also be the primary
        radio for the SpaceCam SSTV project. The ISS crew
        will connect the D700 to a laptop computer via a
        custom designed adapter module made by ARISS. The
        VOX-Box will match the audio signals from the laptop
        computer to the D700 radio. The VOX-box will also
        signal the radio when it is time to transmit.

        What do I need at home?
        To work ISS from your home, you should have at least
        the following Amateur Radio equipment:
        A 2-meter FM radio with an output rating of 25 to 50
        watts.
        An Omni-directional antenna or small beam (the higher
        the gain the better).
        A short run of good quality coax (RG-213, 100 feet or
        less).
        A PC running one of the common Slow Scan TV decoding
        applications.
        (In this memo I will not go into the details of any
        one specific SSTV applications at this time.)

        And that is it for radio equipment. I use an
        inexpensive Laptop computer with a 233 MHz CPU and
        Windows 2000. The software I use is either CPIX by
        Silicon Pixels or and engineering version of SpaceCam1
        (Sorry, SpaceCam1 is not for sale).


        Slow Scan TV Decoding Software
        Here are just two of the many Share-Ware SSTV
        applications on the market. There may be many more.

        W95SSTV by Silicon Pixels
        http://www.barberdsp.com/w95sstv/w95dload.htm

        MMSSTV
        http://mmhamsoft.ham-radio.ch/

        There are also many High quality pay software
        applications that offer many more features, such as
        multiple windows that allow your to simultaneously
        receive an image while preparing your next image that
        you want to transmit.

        CPIX
        http://www.barberdsp.com/


        Timing:
        You will need access to a computer or web to tell you
        when ISS is in range of your station. The timing of
        your contact is the most important part of a
        successful contact with ISS. There are many tracking
        programs out in the market place today. The ARISS team
        does not endorse any specific tracking program. Some
        programs are share-ware (STSPLUS); others cost a few
        bucks. I recommend using the DOS InstantTrack, program
        by AMSAT. www.amsat.org This program is very easy to
        use and works very well with older style computers
        such as 80286 style PC's. The cost of most tracking
        software applications is approximately $50-100.

        Doppler Shift:
        The ISS Space Station is traveling around the Earth at
        over 17,500-mph (28,000 Kph). This great speed will
        make radio signals appear to shift in frequency. This
        phenomenon is called Doppler Shift. Many of us have
        radios that are Channel locked. This means you cannot
        make any fine tuning adjustments to your receiver or
        transmitter's frequency. Most Mobile and HT radios
        cannot make any frequency changes less than 5 kHz
        channel steps (lets hope that radio manufacturers will
        add 1 or 2 kHz channels steps in the future). This
        Doppler shift will cause the ISS transmit frequency
        (145.800) to look as if it is 3.5 kHz higher in
        frequency when ISS is approaching your location.
        Fortunately we will be using the FM mode, and this
        mode does help compensate for part of the Doppler
        frequency drift automatically. If you are fortunate
        enough to have a radio with the ability to make
        smaller channels steps then you should take advantage
        of this feature. You will need to review the owner's
        manual for your radio to learn how to program
        "Odd-Splits" channel combinations and program the
        following consecutive frequencies into your radios'
        memories.

        For 5 kHz channel step radios do not try to adjust for
        Doppler. The exact frequency for Slow Scan TV has not
        been announced at this time.
        ( Region 2--North & South America, Region 3Asia,
        Australia)
        Channel 1 145.800.0 RX 144.490.0 TX Voice
        Channel 2 145.800.0 RX 145.990.0 TX Packet (Worldwide)
        Channel 3 145.800.0 RX 145.200.0 TX Voice (Region
        1Europe, Africa)

        For VOICE (Region 2North & South America, Region
        3Asia, Australia)
        2.5 kHz channel step radios
        Channel 1 145.802.5 RX 144.487.5 TX
        Channel 2 145.800.0 RX 144.490.0 TX
        Channel 3 145.797.5 RX 144.492.5 TX

        For Packet 2.5 kHz channel step radios (Worldwide)
        Channel 4 145.802.5 RX 145.987.5 TX
        Channel 5 145.800.0 RX 145.990.0 TX
        Channel 6 145.797.5 RX 145.992.5 TX

        For VOICE (Region 1Europe, Africa) 2.5 kHz channel
        step radios
        Channel 7 145.802.5 RX 145.197.5 TX
        Channel 8 145.800.0 RX 145.200.0 TX
        Channel 9 145.797.5 RX 145.202.5 TX

        Let's assume ISS is approaching your location (QTH)
        and the Slow Scan TV system is active. Use channel #4
        at the beginning of the pass, then when ISS is over
        head, use channel #5 and when ISS passes your QTH use
        channel #6. For best results, use an updated tracking
        program, which displays the current Doppler shift.
        This will assist you in determining when it is best to
        change channels.

        As you may have noticed, it is not recommended for you
        to adjust your uplink frequency on 5 kHz radios. You
        may have better results if you leave your receiver on
        145.800 and your transmitter on 145.990. The Doppler
        shift is only at the +3.5 kHz setting for a few
        seconds, then it will slowly begin to approach zero.
        After 5 minutes or less, the Doppler shift will be 0
        for a few seconds, and then it will begin to swing
        towards -3.5 kHz.


        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



        Practice Practice Practice:
        If you want to be successful in sending and receiving
        Slow Scan TV from ISS you must be fully proficient in
        using Slow Scan TV on Earth first, before you make any
        attempt to use the Slow Scan TV on ISS.

        If you can not find any friend locally to test with on
        2-meter, you can always try 20-meter (14.230 USB,
        assuming you have license privileges and equipment).
        During most of day and night you can easily hear
        people sending SSTV images on the 20-meter band. On
        HF the most common SSTV analog mode is called
        Scotty-1. Most SSTV applications support several of
        the common SSTV modes.

        You can also experiment with SSTV by plugging two
        computers together, PC to PC via the sound card audio
        cables.


        Receiving Images from Space:
        The SuitSat project will only be sending an image.
        The SpaceCam project later on, will allow both
        Uploading and down loading of images from ISS. The
        Schedules for SpaceCam will be posted early next year.
        For now you will just need to concentrate on
        receiving SSTV images from space.

        Picking A Pass:
        Use your computer program to select a good pass with
        high elevation angles. When ISS first appears on the
        horizon, the satellite will be 1500 miles (2400 km)
        away. When ISS is directly over your house, it is only
        240 miles (384 km) away.
        Using your tracking program, pick a pass with a
        maximum elevation of over 40 degrees. These are
        typically the best passes because ISS will be closer
        to your QTH. For low elevation angles, your radio
        signal will have to travel along the ground, where it
        will be affected by trees, buildings and hills. When
        ISS is high above the trees, you will have a clear
        line-of-site shot to the ISS antenna. A 1000-mile
        contact on 2-meters is easy, that is if there is
        nothing between you and the other station. A good pass
        is only 10 minutes long.

        Receiving SuitSat:
        The SuitSat Transmitter is preprogrammed to send a
        series of Voice messages, Telemetry and a single SSTV
        image, every 8:46. Then the whole process then
        repeats from the beginning. This means that each
        orbit over your house you will have one or two chances
        to receive and decode the image from SuitSat. You may
        also want to have your tape recording device handy to
        record the rest of the messages. The exact location
        of the image is approximately 6:42 seconds from the
        start of the first message.


        Don’t wait to try SSTV:

        As more information becomes available on the
        activation dates of the project, the information will
        be posted. It is possible that SuitSat may be
        activated in December 2005. If this it true, they you
        only have a few weeks to get your home station ready
        to receive SSTV image from Space. So, don’t wait until
        the last minute to get your home station SSTV ready.


        73 Miles WF1F MAREX-MG

        Until we meet again

        DOSVIDANIYA Miles WF1F




        __________________________________
        Start your day with Yahoo! - Make it your home page!
        http://www.yahoo.com/r/hs
      • MM
        ISS Amateur Radio Status: October 13, 2005 (Boooo) Slow Scan TV from ISS in 5 weeks? By Miles Mann WF1F, MAREX-MG News www.marexmg.org Manned Amateur Radio
        Message 3 of 4 , Oct 31, 2005
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          ISS Amateur Radio Status: October 13, 2005 (Boooo)

          Slow Scan TV from ISS in 5 weeks?

          By Miles Mann WF1F,

          MAREX-MG News www.marexmg.org

          Manned Amateur Radio Experiment

          Hi everyone:

          Slow Scan TV from the International Space Station, may
          be activated in as little as 5 weeks. Note: All
          dates are subject to change.

          At the present time there are tentative plans to have
          a Space Walk (EVA) taking place from ISS sometime
          around December 8, 2005. It is possible that during
          this Space Walk, the ISS crew may “Hand” launch the
          ARISS SuitSat project during that EVA missin. Again,
          all date are subject to last minute changes. Please
          Keep monitoring the ARISS and AMSAT web pages for more
          updates.

          The SuitSat project is a free floating satellite that
          will be running on Batteries Only! The life span of
          the project will be limited to the power in the
          batteries. SuitSat may last as little as 1 week or as
          long as 6 weeks. So it is very important for you to
          get your satellite monitoring station ready now. You
          should not wait for the Official activation date,
          because you may miss the opportunity to hear the new
          bird.

          I will keep posting updated links for the SuitSat
          project as they become available.

          SuitSat Specific links


          "SuitSat," New ARISS SSTV Gear Arrives at
          International Space Station
          http://www.arrl.org/news/stories/2005/09/16/2/?nc=1

          SSTV details:
          The SuitSat project will transmit, Telemetry,
          Pre-Recorded Voice messages and one SSTV image. The
          whole process will repeat approximately every 9
          minutes.
          (Robot 36 format).

          All transmissions will be in FM mode and will be on
          the 2-meter amateur radio satellite band. This means
          that the Doppler frequency drift will not be much of a
          problem and you will be able to use your existing
          2-meter station or a police scanner to hear and decode
          the signals SuitSat.

          If you have already have been successful in working
          the Packet station or talked to the ISS crew on
          2-meter voice, than you already have most of what you
          need.
          What’s left is to connect your computer to the speaker
          of your radio and some SSTV decoding software, such as
          ChromaPix http://www.barberdsp.com/ or similar
          software.

          So have fun, find your best setup and start practicing
          how to decode SSTV on 2-meters.

          Slow Scan TV Decoding Software
          Here are just two of the many Share-Ware SSTV
          applications on the market. There may be many more.

          W95SSTV by Silicon Pixels
          http://www.barberdsp.com/w95sstv/w95dload.htm

          MMSSTV
          http://mmhamsoft.ham-radio.ch/

          There are also many High quality pay software
          applications that offer many more features, such as
          multiple windows that allow your to simultaneously
          receive an image while preparing your next image that
          you want to transmit.

          CPIX
          http://www.barberdsp.com/

          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





          __________________________________
          Yahoo! Mail - PC Magazine Editors' Choice 2005
          http://mail.yahoo.com
        • MM
          ISS Amateur Radio Status: November 17, 2005 SuitSat Status By Miles Mann WF1F, MAREX-MG News www.marexmg.org Manned Amateur Radio Experiment SuitSat Activation
          Message 4 of 4 , Nov 17, 2005
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            ISS Amateur Radio Status: November 17, 2005

            SuitSat Status

            By Miles Mann WF1F,

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

            SuitSat Activation in 3 weeks?

            Hi everyone:
            SuitSat Activation in 3 weeks?

            The SuitSat project is onboard the International space
            station and could be activated in as little as 3
            weeks. The current tentative activation date is
            during the ISS crew space walk on Wednesday December
            7, 2005. SuitSat will be a hand launched satellite.
            During the November monthly ARISS telecom the SuitSat
            launch date was discussed and it still looks like
            SuitSat will be activated during the next Space walk
            (EVA) in December.

            For more specific details on the SuitSat project,
            please review the AMSAT web link PDF file for some
            good details and great pictures of the SuitSat
            project.

            http://www.rac.ca/ariss/Suitsat%20Rev%20D.pdf


            The Reason it is important for people to get ready to
            Monitor the SuitSat project is because this is a short
            duration experiment. This is the first version of
            this type of project, and it will be running on
            Batteries only. The Battery duration of this project
            looks like it will be shorter than originally planed.
            The current expected life of the SuitSat project is
            approximately 1 week. So if you snooze you will
            loose.

            The down link on 145.990 FM will consist of:
            Voice Telemetry, giving Mission Time, Suit Temperature
            and Battery Voltage
            Voice Greeting messages in multiple languages
            One SSTV image
            The whole process will repeat every 9 minutes until
            the batteries discharge.

            On Wednesday December 7, ISS will be in range of the
            East coast of the USA, starting around 2:33 AM EST
            (7:33 UTC). (I do not have the starting time of the
            Spacewalk at this time). Then every 90 minutes, ISS
            will pass of the USA, going more west with each orbit.
            By 7:19 AM EST (12:33 UTC) ISS will be passing over
            the Central USA and will be in range of most of the
            USA.

            East Coast Starting Passes:
            2:33 AM EST 5:33 UTC
            4:07 AM EST 9:07 UTC
            5:44 AM EST 10:44 UTC
            7:19 AM EST 12:19 UTC
            8:56 AM EST 13:56 UtC
            10:30 AM EST 15:30 UTC


            I will keep posting updated links for the SuitSat
            project as they become available.

            SSTV details:
            By now you should have your station all configured to
            Record the Voice down links from ISS and you should be
            able to decode SSTV images.

            The SuitSat project will transmit Telemetry,
            Pre-Recorded Voice messages and one SSTV image. The
            whole process will repeat approximately every 9
            minutes. (Robot 36 format).

            All transmissions will be in FM mode and will be on
            the 2-meter amateur radio satellite band. The current
            frequency for SuitSat is 145.990 FM Downlink only
            (There is no uplink for this satellite). This means
            that the Doppler frequency drift will not be much of a
            problem and you will be able to use your existing
            2-meter station or a police scanner to hear and decode
            the signals SuitSat.

            ARISS is also planning on using the Kenwood D700
            Transceiver on ISS to Rebroadcast the SuitSat signal
            on 437.800 MHz FM. This will allow you to hear
            SuitSat while ISS is in range of you station.

            If you have already have been successful in working
            the Packet station or talked to the ISS crew on
            2-meter voice, than you already have most of what you
            need. What’s left is to connect your computer to the
            speaker of your radio and some SSTV decoding software,
            such as ChromaPix http://www.barberdsp.com/ or similar
            software.

            So have fun, find your best setup and start practicing
            how to decode SSTV on 2-meters.

            Slow Scan TV Decoding Software Here are just two of
            the many Share-Ware SSTV applications on the market.
            There may be many more.

            W95SSTV by Silicon Pixels
            http://www.barberdsp.com/w95sstv/w95dload.htm

            MMSSTV
            http://mmhamsoft.ham-radio.ch/

            There are also many High quality pay software
            applications that offer many more features, such as
            multiple windows that allow you to simultaneously
            receive an image while preparing your next image that
            you want to transmit.

            CPIX
            http://www.barberdsp.com/

            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
            DOSVIDANIYA Miles WF1F







            __________________________________
            Yahoo! Mail - PC Magazine Editors' Choice 2005
            http://mail.yahoo.com
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