I have a question about FSK modulation I'm going to frame in terms of a hypothetical:
Imagine that you are transmitting a message to an ET in another solar system. The message is encoded in binary and embedded in the radio signal using FSK modulation. Lets say the signal is broadcast at 5 GHz and FSK +50kHz (i.e. 0 = 5,000,000 kHz and 1 = 5,000,050 kHz). Finally let's say you want to broadcast @ 1 bit per second.
Now lets say the message you send is "1111111111" (10 ones).
Would the ET recipient of this message be able to decode it without knowing the bit rate?
My argument would be no, since to the ET it would just look like an unmodulated signal at 5000050 kHz that lasts for 10 seconds. If the ET didn't know the bit rate, it would be impossible for it to determine whether there was 100 ones or 10 ones encoded in the signal unless some zeroes were present as well. Is this correct? Would the presence of zeroes in the message even help determine the bit rate?