ISS SSTV Event: Dec 26-31

[N4DJC]

The pass here was high enough and the signal was strong, but I didn’t get a good decode at all with Blackcat app. I recorded it on my D74. Must be some setting off.

 

[vagrant]

Here is image 9 of 12 from just a few minutes ago. Too much noise, but I'm not outdoors with a directional antenna, so we get what we get today with the rain. Token should have a nice image as it was close to overhead.

@N4DJC I also recorded this using my D74A.

 

[jland138]

Captured our image this morning with a D710 using a Radio Shack discone scanner antenna mounted in the attic.

 

[eorange]

Never considered recording; I'll try that with my R30.

 

[N4DJC]

Never considered recording; I'll try that with my R30.

I got some of my best images using an R30 a few years ago.

 

[Token]

Here is image 9 of 12 from just a few minutes ago. Too much noise, but I'm not outdoors with a directional antenna, so we get what we get today with the rain. Token should have a nice image as it was close to overhead.

Was actually raining and snowing here during that pass, but yes, close to overhead and very nice pass.

The below results were done live using my R8600 and MMSSTV. I also record all passes using an RFSPace NetSDR, so I can play them back later if needed or if the live decode glitches. After this series is done, or after I have one of each image in good quality, I will probably do a series of videos on my YouTube channel, playing back the best recording of each image and doing a decode on the video.

T!

 

[ind224]

Real world: just had solid copy w N2YO saying it was only 1.8 above horizon arriving and sudden increase in amplitude as 2.4 was reached on exit. Over big water both times hint hint .......

 

[eorange]

I can't get MMSSTV (v1.13A) to play sound from a file.

I made a good .wav recording on Tuesday with my R30. I used Audacity to resample the audio to 11025 and exported as a .wav file, which I renamed to .mmv. I fired up MMSSTV and changed the RX mode to PD120. When I choose that .mmv file for "Play sound from the file...", I see the "Adjust play position" dialog box, but it's not actually playing or processing the file. The NowTime just sits at 0 seconds and doesn't move.

What am I missing?

 

[vagrant]

@eorange I am using the same version of MMSSTV 1.13A and Audacity 2.4.2 and it does not appear you are doing anything wrong. What I do not do is change the RX mode to PD120. It is on "Auto" when the program is opened, but that should not change things. It might but the received audio is PD120 and MMSSTV automatically switches to that.

I have been using my D74A for these passes, but I have used my R30 in the past.

Audacity
1. Drag and drop wav file to Audacity. Edit length if needed, then Select > All
2. Choose the 11025 rate in the bottom left
3. File > Export as wav ( I give it a different name than the original wav file )
4. Rename whatever.wav to whatever.mmv

MMSSTV
1. File > Play sound from file
2. Select the whatever.mmv file and click Open
3. The audio will automatically start playing and you'll see the image in the RX window/tab
4. Export/Edit however you want after that.

 

[eorange]

That's what I'm doing. I did start with Auto but when that didn't work I switched to PD120.

If I had an audio file with nothing but pure hash...would MMSSTV still try to play it? I ask because the audio starts a few seconds before I just start to receive the faintest audio signal. I was wondering if I should trim it. Although I'm guessing this doesn't matter. I'll keep experimenting.

 

[ind224]

eorange the beginning of a picture has the start tones (like the end) but the program will indeed start decoding as soon as it has a viable signal. Before the tones if one had an open squelch like they would w ACARS the "white" noise shows input useful for getting input level correct but no decoding.

 

[eorange]

Solved! My fault. My laptop only uses a USB sound card, which wasn't plugged in. So MMSSTV always gave me an error when starting about no sound card. I assumed that since I wasn't feeding in a "line in" audio signal...then why would I need it? But something told me I should alleviate the error and that was it. Plugged in my sound card and everything worked.

The audio was recorded outside 12-28-21 13:51 UTC using my R6 with just the whip (didn't feel like grabbing my Arrow beam). It was a great overhead pass but of course the majority of the time spent overhead was between transmissions. I am liking recording now and decoding later. Thanks everyone for the help!

 

[JamesWest]

Just monitored ISS on 145.8 @03:10 UTC over Communist China.

and again right now 3:17 UTC as it moves south.

 

[TexTAC]

I’m new at SSTV. Just downloaded mmsstv software on my laptop today and connected it to a Yaesu FT-991a. Assuming I connected everything correctly, If I leave it on auto RX on the correct frequency will it automatically decode the image and save them?

 

[TexTAC]

I figured out how to get the mmsstv software to work automatically with my Yaesu FT-991A hooked up to a Larson triband antenna. I decoded 2 1/4 SSTV images from the ISS on the first pass. Here is the best photo of the bunch. I'm going to leave the setup running overnight because I think there are some better passes coming up soon.

 

[PDXh0b0]

 

[TexTAC]

My setup decoded a few more overnight but this is my favorite so far ....

 

[eorange]

Ha, same pic from the same time. 13:50 UTC w/ Icom R30 and Arrow handheld beam:

 

[freqhopping]

I've got all but #4 now. I've been using my BC250D connected to a TRAM discone. Tomorrow I will also try to use my video camera to record audio from my Alinco DR-MD500 since it doesn't have an audio output.

 

[PDXh0b0]

https://i.postimg.cc/L8LJ8gPC/Expedition-66-Series-19-PDXh0b0-b.png