Wilson thought for a moment, then looked around. "Anybody have an idea?"

Allison scratched his head. "You say the code was all right, but then

got spotty?"

"Yes, sir."

Allison looked at Manning. Both were involved in science to a high

degree, Allison as an infrawave researcher; Manning as a computer. Both

had studied the mathematics of communication. Manning nodded soberly.

"You don't suppose they foolishly tried to key the automatic

transmitter?" he asked. "Superimposing a code upon another code would

result in a spotty transmission, since the intermingled transmission

bits would obtain only where both codings delivered a positive

configuration. It might--"

The communications tech broke in scornfully, "The pilot of the

Seventy-nine was aboard. He'd know. Nobody but a complete imbecile

would try to key an automatic distress transmitter."

Spacemen lost · 第 44 / 61 题