[RTTY] PSN Modulation & PSK31 with Icom

[John Fleming]

> Can someone tell me what this PSN modulation is and what advantage it is 
> for SSB
> (not PSK31 obviously).

All Mode Digital Modulation and Demodulation

Let's start with the modulation and demodulation of the signals. For signal 
purity and clarity, an all mode digital PSN (Phase Shift Network) system has 
been incorporated into the DSP system. For transmit, this greatly reduces 
the intermodulation distortion, pro-ducing the highest quality transmit 
audio. While the PSN sepa-rates the signal from noise by phasing out noise 
and other unwanted signals.



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