Data in
Clock in
      
      Data out
Clock out
      
            SOQPSK provides the combination of spectral efficiency with the power 
efficiency of constant amplitude modulation.  The demodulator employs an 
efficient four-state trellis which provides near theoretical bit error rate 
performance.
Both the transmitter and receiver support symbol rates continuously from 10 
Kbps to 40 Mbps.
Tracking loops and bit rates are controlled digitally through an SDI port.
Configuration and status monitoring are also provided with this interface.
Custom Forward Error Correction available.