Decoders List in PhantomSDR-Plus

[Emmanuel SV1BTL]

SSTV is failing all the time. I am concentrating on this decoder, because all others work. I am getting help from Artificial Intelligence for SSTV, but for now not any success. I'll try until I get this working, otherwise I'll cancel the SSTV from the next release.

NAVTEX is working very good! But only 2 frequencies are active – 518 KHz and 490 KHz. All the others are not active. If you use NAVTEX decoder, you have to wait for synchronization. If a signal is there, the operators send a synchronization signal (NNNNNNNN) after the last message and the next begins. At this moment the NAVTEX will be decoded by you. The same you can do with the decoder FSK/RTTY. Switch to Maritime FSK/SITOR, choose the frequency 518 or 490 and click TUNE. The decoder starts immediately, without waiting for synchronization.

FSK/RTTY will also decode Weather and/or Amateur RTTY. For Weather RTTY the german station 10100.8 transmits 24/7. In Weather RTTY you MUST use Invert mark / space (check), BUT you must uncheck for Amateurs RTTY

Conclusion: Everything is working on Decoders EXCEPT SSTV. I'll continue attempts to fix it until the next release.

PS. This is a HF FAX decoded from DDH3/DDK3 in 13882.5 KHz

[Emmanuel SV1BTL]

Here are some examples of what is working:

[Emmanuel SV1BTL]

and the newer:

P.S. Navtex and Maritime FSK are decoded, but the text is in Greek with latin characters, so you will not understand the text.... 

[Emmanuel SV1BTL]

I am very sorry, but the SSTV decoder refuses to work as it should! I'm trying over a week to receive a picture with the correct colors and alignment. Two AI tools failed too to give me a solution. The problem is maybe (?) the 12000 audio sps, and converting to 48000 where maybe (?) the solutions would (?) work.

So for now I give up. I've deleted any reference to SSTV in .svelte files and the audio.js, removed the sstv.js and test_sstv.mjs and finaly I am giving you the last updated files, with some minor improvements to FSK and RTTY.
Sorry for this, maybe one day we'll return to this damn SSTV decoder.

So, UPDATE No 3. Please replace the files, delete sstv.js and test_sstv.mjs and recompile fronend only.

Tests will continue, until everything works without issues. Final release will wait for a week or two.

[Emmanuel SV1BTL]

National independence day yesterday here in Greece, so I had the opportunity to make some updates/upgrades too.

• Added reverse waterfall button next to Waterfall Controls, and a Keyboard Shortcut "w". The waterfall changes the feeding from down to top (default) to top to down (reverse)
  
• Added "Save text" in modes NAVTEX, FSK and RTTY to a local.txt file. All the session will be saved locally in a .txt file with mode, date and time received
  
• All digital modes bypass the AGC, Filters, Mute, Squelch, Noise Reduction, Noise Blanker etc. So only raw audio is feeding the decoders EXCEPT CW, which function with the use of every audio enchantments as with normal audio. The change is made because any filter or audio processing affects the decoders and suppress the signals, so the accuracy. CW is excepted, because audio filters help decoding.
  
• wspr.js is updated in order to minimize fake signals. Some more work must be done!
  

Please download UPDATE No 4, replace all the files and recompile.

[F1NSK]

Hello Emmanuel

Dont worry about SSTV...It's not essential

Be happy about others decoders ! 

CW works as best as possible
FT4 & FT8 are perfect.
WSPR work fine
First test with RTTY seems very good
The reversible Waterfall is a nice idea !

You've made a fantastic job in a short time ! Congratulations

I've push the bêta 4 online with little labels changes..

Fell free to test decoders with my antenna system

73's Qro