23 April 2017

CIS Navy FSK 50Bd/250 136 bit


Interesting signal from my friend KarapuZ: it's the quite uncommon 50Bd/250 136 Bit by some Cis networks, most likely CIS Navy. The waveform is similar to the well known T600 (50Bd 200/250Hz) but in this case the full period is 544 bits lenght, ie 4 x 136 bit frames.

Fig. 1
Fig. 2

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