From the ARRL License Manual 1976:
CW Bandwidth = wpm X 4 (e.g., 40 WPM = 160 Hz)
"With proper shaping, the necessary keying bandwidth is equal to 4
times the speed in words per minute for International Morse Code;
e.g. at 25 words per minute, the bandwidth is approximately 100 cycles."

--
73 From The Wilderness Keyboard
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"Mike Coslo" wrote in message
...
The question kind of states it. I suppose that the BW might be wider as
the speed increases.

The reason I ask is that on 3580 tonight, we're all sitting there fat,
dumb, and happy, when W1AW starts it's CW broadcast. And it's some 700
kHz wide!!! And now I'd swear it's almost 3kHz wide. That's like SSB!!!

Needless to say, their strong signal was pretty tough on all us 5 and
ten watters. you could get most of a message through, but it took a lt
of the fun out of it.

What the heck , over?

- Mike KB3EIA -