Calculate properties of a given Modulated Signal
Establishing the system's parameters from time/frequency plots with absolute certainty is impossible, but you can make educated guesses.

In your example, the signal seems to be binary FSK; it seems to have continuous phase. Assuming that is correct, then you can try guessing the parameters you're interested in:


Maximum amplitude: from the time plot, you can see that the amplitude is 2. The units are not specified.
Carrier frequency. The carrier could be said to be the frequency at the middle of the two frequency peaks (seems to be around 350 Hz).
Bit interval. It is the time interval for which the frequency stays constant. If we assume that the bits transmitted are 1,0,1,0,1, then it seems like the bit interval is 0.015 seconds or so. Note that the bits transmitted could be 1,1,0,0,1,1,0,0,1,1 with a bit interval of 0.015/2 seconds. This is a case where complete certainty is impossible without more information about the system.