What do I need to decode the upcoming ARISS SSTV? My station is IC-910H and laptop with satpc32. I have a signalink collecting dust. What software should I use? Jim KI6WJ
Hello Jim, Download MMSSTV, it is free and still the best and you can be up and running with your equipment in 5 minutes. The best web page for help is by WA9TT. His web page has a beginner section and live sstv capture worldwide. Transmission is on 145.800 and MMSSTV automatically finds the format being used. You can go to 14.230 to practice rx prior to the event. Email me direct if you have any questions?
Good luck & 73, Dave, WN9Q
Sent from my iPhone
On Jul 11, 2017, at 3:50 PM, James Brown [email protected] wrote:
What do I need to decode the upcoming ARISS SSTV? My station is IC-910H and laptop with satpc32. I have a signalink collecting dust. What software should I use? Jim KI6WJ _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
On Jul 12, 2017 8:44 AM, "David Jaeger" [email protected] wrote:
Hello Jim, Download MMSSTV, it is free and still the best and you can be up and running with your equipment in 5 minutes. The best web page for help is by WA9TT. His web page has a beginner section and live sstv capture worldwide. Transmission is on 145.800 and MMSSTV automatically finds the format being used. You can go to 14.230 to practice rx prior to the event. Email me direct if you have any questions?
Good luck & 73, Dave, WN9Q
Sent from my iPhone
On Jul 11, 2017, at 3:50 PM, James Brown [email protected] wrote:
What do I need to decode the upcoming ARISS SSTV? My station is
IC-910H and laptop with satpc32. I have a signalink collecting dust. What software should I use?
Jim KI6WJ _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership.
Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Quoting John Brier who wrote on Wed 2017-07-12 at 09:12:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
Two items for that page:
1: when recording, try to set the sample rate in the recording software to the same number sample rate as used by the sstv software. This avoids resampling errors.
2: qsstv for linux works fine for decoding ISS images.
Koos
On Wed, Jul 12, 2017 at 9:27 AM, Koos van den Hout [email protected] wrote:
Two items for that page:
1: when recording, try to set the sample rate in the recording software to the same number sample rate as used by the sstv software. This avoids resampling errors.
2: qsstv for linux works fine for decoding ISS images.
Koos
Thanks Koos.
The resampling errors might explain why I've sometimes gotten better decodes live than after I play it back through the recorder.
I'll add that to the web page, and the qsstv recommendation as well.
73, John Brier KG4AKV
John, Do you do unattended recording by scheduling an app to record the pass? Or do you leave it recording for the whole time and then edit a humongous audio file? I have to work Thursday and was hoping to record in an unattended mode, and then come home and see what I got. The audio will be mono, so I assume recording at 44kHz mono, uncompressed is how you do it? What app do you use? Thanks, -Kevin (KK4YEL)
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
On Jul 12, 2017, at 09:14, John Brier <[email protected]mailto:[email protected]> wrote:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
Hey Kevino,
99 percent of the time I am receiving with my Arrow antenna outside. One time there was a telebridge in the middle of the night and I parked my car on the top of a parking deck that had a good view of the pass (at the time my girlfriend's deck) and left my Zoom H1 audio recorder going. The quality was surprisingly good, even they were using the 5 watt radio, not the more powerful Kenwood. I can't remember if I left it in WAV or mp3, but it worked. I had a huge file of course.
If you have a PC it should be able to handle multiple gigabytes even in WAV.
If I'm reading this site the standard WAV settings will get you a file around 2.5 GB for eight hours:
http://www.audiomountain.com/tech/audio-file-size.html
Of course there are ways to automate/script recording at a specific time. I know of at least one SDR program that can do it for sure (saw a screenshot of it, can't remember which one)
73, John Brier KG4AKV
On Thu, Jul 13, 2017 at 6:35 AM, kevino z [email protected] wrote:
John, Do you do unattended recording by scheduling an app to record the pass? Or do you leave it recording for the whole time and then edit a humongous audio file? I have to work Thursday and was hoping to record in an unattended mode, and then come home and see what I got. The audio will be mono, so I assume recording at 44kHz mono, uncompressed is how you do it? What app do you use? Thanks, -Kevin (KK4YEL)
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
On Jul 12, 2017, at 09:14, John Brier [email protected] wrote:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
HDSDR can be programmed in frequency and time for multiple unattended operations. It can save the data as full RF signal, IF or AF demodulated audio.
Ed Krome K9EK Sent from my iPhone
On Jul 13, 2017, at 10:18 AM, John Brier [email protected] wrote:
Hey Kevino,
99 percent of the time I am receiving with my Arrow antenna outside. One time there was a telebridge in the middle of the night and I parked my car on the top of a parking deck that had a good view of the pass (at the time my girlfriend's deck) and left my Zoom H1 audio recorder going. The quality was surprisingly good, even they were using the 5 watt radio, not the more powerful Kenwood. I can't remember if I left it in WAV or mp3, but it worked. I had a huge file of course.
If you have a PC it should be able to handle multiple gigabytes even in WAV.
If I'm reading this site the standard WAV settings will get you a file around 2.5 GB for eight hours:
http://www.audiomountain.com/tech/audio-file-size.html
Of course there are ways to automate/script recording at a specific time. I know of at least one SDR program that can do it for sure (saw a screenshot of it, can't remember which one)
73, John Brier KG4AKV
On Thu, Jul 13, 2017 at 6:35 AM, kevino z [email protected] wrote: John, Do you do unattended recording by scheduling an app to record the pass? Or do you leave it recording for the whole time and then edit a humongous audio file? I have to work Thursday and was hoping to record in an unattended mode, and then come home and see what I got. The audio will be mono, so I assume recording at 44kHz mono, uncompressed is how you do it? What app do you use? Thanks, -Kevin (KK4YEL)
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
On Jul 12, 2017, at 09:14, John Brier [email protected] wrote:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Excuse me for jumping in, but just wanted to mention that I use RX-SSTV ( http://users.belgacom.net/hamradio/rxsstv.htm) and, like many of the SSTV apps, it saves each image file as it's received.
Now, that by itself doesn't give you an audio recording, so if you want to record the audio "just in case", that's a separate thing.
But as far as leaving a radio & computer unattended to "see what you get", the SSTV software will do that for you if you wish.
-Scott, K4KDR
================================
On Thu, Jul 13, 2017 at 6:35 AM, kevino z [email protected] wrote:
John, Do you do unattended recording by scheduling an app to record the pass? Or do you leave it recording for the whole time and then edit a humongous audio file? I have to work Thursday and was hoping to record in an unattended mode, and then come home and see what I got. The audio will be mono, so I assume recording at 44kHz mono, uncompressed is how you do it? What app do you use? Thanks, -Kevin (KK4YEL)
No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !
On Jul 12, 2017, at 09:14, John Brier <[email protected]mailto:jo [email protected]> wrote:
I highly recommend recording the audio.
That way if you have issues decoding during TX you can always replay to the decoder later. Also you can try different decoders and settings to see which produces the best image.
I have more tips and info on this page on my website:
https://spacecomms.wordpress.com/iss-sstv-reception-hints/
73, John Brier KG4AKV
participants (7)
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David Jaeger -
Ed Krome -
James Brown -
John Brier -
kevino z -
Koos van den Hout -
Scott