19 February 2015

CIS-45 v1 HDR modem 33.33 Bd BPSK stream

Number of channels: 45 + 1 pilot tone (~ 3300 Hertz)
Manipulation in the channels: 2-PSK
Step between channels (frequency net/grid): 62.5 Hz
Manipulation speed (Baud rate): 33.33

The signal has the same features of CIS-45 Version 1 burst-mode, but here it is used in stream-mode. This is the third variant I have seen of CIS-45 modem other than CIS-45 v2 (40 Bd stream) and CIS-45 v1 (33.33 Bd burst)

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