It must check for transmission errors that could damage the subject.
Consider the following example with a transmission error in the second bit:
The repetition of every block is probably to minimize transmission errors.
The designers attempted to protect against simple transmission errors.
Small transmission errors during the receiving may affect only the boundary bits.
There was too much transmission error in a process like this, especially using these corroded old jacks.
Of course I'll see to it there's no transmission error!
Arthur piped in immediately: I suspect this is a transmission error.
The analysis cautions, however, that the data from this period are suspect because of transmission errors.
"Knowing that in case of an overload or some transmission error you might never get back inside your own head?"