Hi, I' ve searched the Internet for RTTY decoding methods and found the following:
- frequency discriminator with IIR resonator. There's a IIR resonator for mark and one for space. A following mark/space detector try to find mark/space peaks in the spectrum and then a comparator decides if it's a "0" or "1" - frequency discriminator with FIR bandpass filter - analog or digital PLL - demodulation with Goertzel algorithm - zero crossing detector to identify the frequency of mark and space Are there other known methods and who knows something about or can explain the above decoders ? How do they perform in a noisy environment ? 73 Sven Are __________________________________________________ Do You Yahoo!? Sie sind Spam leid? Yahoo! Mail verfügt über einen herausragenden Schutz gegen Massenmails. http://mail.yahoo.com
