I had about twenty-five morse operators who were listening to morse signals for me, and about five non-morse and voice operators.

Between Morse signals there is a pause equivalent to the length of a dash.

A morse operator, for instance, just sits there in front of a radio receiver with headphones, and a typewriter for copying morse signals.

If we had wanted to send Morse signals to the aerostat, we should have been content with a single searchlight.