DSD+ decoding a DTR?

[poltergeisty]

It looks like the DTR and Nextel i355 phones that use direct talk use an 8-level FSK. Can DSD+ decode that? I plan on finding all 50 channels these two radios use and using my SDR to track them. Then run the audio to DSD+. But that's only if the modulation can be decoded.

 

[poltergeisty]

Are there any programs out there that will decode an 8-level FSK modulation?

Also, I see that the Airspy SDR has a 6 MHz scanning speed. Is that true for how quick I can scan through some 50 channels with the FMSuite with SDR#?


The goal here is to find out what frequencies a DTR or Nextel i355 phone uses, store all those as channels in FMSuite and scan those at a high rate then feed the audio to something that can decode the 8-level FSK modulation.