There were missing wave lengths or something of that kind.
He picked up his mike and switched to the private wave length.
"All wave lengths still jammed, or were when I came up here."
If only we could get everybody on the same wave length.
"No, a shift in wave length tells us whether a star is moving toward or away from the sun."
How could anybody know what particular wave length he was on at any one moment?
The sooner we're on the same wave length the better.
These rays have high energy and a short wave length.
He seemed to be speaking English, but on the wrong wave length.
They had, of course, transferred to some other wave length so he could not hear the commands.
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