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How to see the demodulated bits from certain location?

Question asked by peiwen on Jul 19, 2007
Latest reply on Jul 19, 2007 by peiwen
I am trying to demodulate a continuous QPSK modulated signal. I want to see the demodulated bits comparison with the bits transmitted by signal source (the data bits are known), but I can't locate the start bit of the demodulated bits. It runs continuously, so I can't see which bit is the start bit.
I tried to set a marker in the beginning of waveform from signal source and use trigger Ext in 89600, but I still can't see the stable bits.

Is there any way to locate the beginning bit of demodulated bits?  

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