ISS SSTV EVENTs 2-3 April and 11-14 April !

Discussion in 'Satellite and Space Communications' started by IW2BSF, Mar 28, 2018.

ad: L-HROutlet
ad: l-rl
ad: l-BCInc
ad: Left-2
ad: L-Geochron
ad: abrind-2
ad: L-MFJ
ad: Left-3
  1. K7WDO

    K7WDO Ham Member QRZ Page

    This would be one of the better indoor shots - 50 degree pass around TCA using a FT-857 & M2 2M4 yagi aimed by hand. A good image like this is usually down to timing (30 degree pass or higher with SSTV kicking in around TCA) and a decent antenna to give you a little fade margin. SSTV images from the ISS, all from the comfort of dad's living room.

    [​IMG]
     
    KF5RHI and KC8VWM like this.
  2. K3RLD

    K3RLD Ham Member QRZ Page

    PD120_20180413_212714.png
    QSSTV + direct recorded wav

    20180413_132700_693733075.png
    Robot36 + audio coupled
     
    Last edited: Apr 13, 2018
    KD6RF, KF5RHI, KS1G and 1 other person like this.
  3. KD0KZE

    KD0KZE Ham Member QRZ Page

    One of my better ones, from the pass just now (ending approx. 6:40 pm central time, April 13). Pretty good for a vertical:

    PD120_20180413_233653.png
     
    Last edited: Apr 14, 2018
    KC8VWM, KD6RF, KF5RHI and 2 others like this.
  4. WD9EWK

    WD9EWK Ham Member QRZ Page

    Hi!

    More pics from passes around midday here in Phoenix. I went to a city park, and had two passes at 1835 and 2012 UTC. First, the two pictures from the 1835 UTC pass, which went directly overhead:


    20180413-1835UTC55-Serie9-8_of_12.jpg


    20180413-1840UTC05-Serie9-9_of_12.jpg


    The second picture above, the "9/12" picture, was the last one I needed to have a complete set of the 12 pictures being sent from the ISS.

    The later pass, at 2012 UTC, had two more:


    20180413-2012UTC47-Serie9-7_of_12.jpg


    20180413-2016UTC57-Serie9-8_of_12.jpg


    The first of these two started coming in about 10 seconds or so after AOS, as the ISS reached only 1 degree elevation. Other than the multi-color static across the top of the picture, it came in nicely. The later pass only reached 12 degrees elevation, but the strong signals from the Kenwood radio in the Russian part of the ISS - along with the RF-quiet park I was in - helped with these pictures.

    I now have all 12 pictures, but some of them have the static noise in them. I still have two more passes tonight to get more pictures, and I'm hoping I will get some better pictures to round out my collection for this activity. There may be a chance for more pictures during one pass tomorrow morning. Otherwise, it has been fun to have a few days with the SSTV transmissions.

    73!
     
    KD0KZE, KF5RHI and KC8VWM like this.
  5. KC8VWM

    KC8VWM Ham Member QRZ Page

  6. K3RLD

    K3RLD Ham Member QRZ Page

    Here's another interesting comparison (both antennas in the same exact location, both coax lines about 30ft long, both audio files decoded with QSSTV):

    A) 1/4 wave ground plane (4 radials), RG58, RTL-SDR, GQRX Controled by Gpredict:
    rtlsdr_qwgp.png

    B) DIY Eggbeater, RG8X, TM-D710G, attenuating speaker cable, Audio-Recorder
    d710_egg.png
     
    KD6RF, KC8VWM, KF5RHI and 1 other person like this.
  7. WD9EWK

    WD9EWK Ham Member QRZ Page

    Hi!

    One OK picture, and most of another picture, from a 15-degree pass at 0106 UTC. This time, working from my back yard, I have to deal with more noise when the ISS is coming from the north or northwest, and whenever it is below 8 to 10 degrees elevation. The first picture started not long after AOS:


    20180414-0106UTC28-Serie9-5_of_12.jpg


    The second one came in when the ISS was near the midpoint of the pass:


    20180414-0110UTC38-Serie9-6_of_12.jpg


    Still using the TH-D74/Elk combination to record the signals, then decoding on a laptop with RX-SSTV. One more pass in just over an hour to wrap up the night.

    73!
     
    KC8VWM likes this.
  8. WD9EWK

    WD9EWK Ham Member QRZ Page

    Hi!

    And two more pictures from the back yard during the 0242 UTC pass, to wrap up the day of SSTV. I saw the ISS passing by from about the midpoint of the pass until just before LOS. The two pictures:


    20180414-0244UTC24-Serie9-4_of_12.jpg



    20180414-0248UTC34-Serie9-5_of_12.jpg



    Same setup as with the other passes this week... TH-D74/Elk to receive and record the audio, then decoded with RX-SSTV.

    73!
     
    KC8VWM and WE4B like this.
  9. IW2BSF

    IW2BSF Ham Member QRZ Page

    K6LCS likes this.
  10. WD9EWK

    WD9EWK Ham Member QRZ Page

    Hi!

    Almost forgot to post the two pictures I received on Saturday morning. I had gone out to the DM54/DM55 grid boundary in eastern Arizona, along I-40 and old US-66 near Petrified Forest National Park. The last SSTV pass over North America around 1743 UTC, and I was able to get two pictures.


    20180415-1745UTC25-Serie9-11_of_12.jpg


    20180415-1749UTC35-Serie9-12_of_12.jpg


    Other than some power-line noise I heard as I received and recorded these pictures, decent signals from the ISS. I used the same setup to receive and decode the pictures - TH-D74 & Elk log periodic to receive the pictures, RX-SSTV to decode them.

    I received all 12 pictures from this event, something I've never done with past ISS SSTV events. The breakdown on how many copies of each picture I received:
    • Received only once: 1, 9, 10
    • Received twice: 2, 11, 12
    • Received 3 times: 4, 5, 6, 7, 8
    • Received 4 times: 3
    I will put all of my pictures, along with the recordings from my TH-D74, in my Dropbox space shortly.

    73!
     
    KF5RHI, KS1G and KA2CZU like this.

Share This Page