Editing Wow! signal (section)

=== Intensity ===
The signal intensity was measured as [[signal-to-noise ratio]], with the noise (or baseline) averaged over the previous few minutes. The signal was [[Sampling (signal processing)|sampled]] for 10 seconds and then processed by the computer, which took 2 seconds. The result for each frequency channel was output on the printout as a single [[alphanumeric]] character, representing the 10-second average intensity, minus the baseline, expressed as a [[dimensionless]] multiple of the signal's [[standard deviation]].<ref name="code">{{Cite web |last=Ehman |first=Jerry |title=Explanation of the Code "6EQUJ5" On the Wow! Computer Printout |url=http://www.bigear.org/6equj5.htm |access-date=July 2, 2016 |publisher=Ohio History Central}}</ref>

In this particular intensity scale, a [[Space (punctuation)|space character]] denoted an intensity between 0 and 1, that is between baseline and one standard deviation above it. The numbers 1 to 9 denoted the correspondingly numbered intensities (from 1 to 9); intensities of 10 and above were indicated by a letter: "A" corresponded to intensities between 10 and 11, "B" to 11 to 12, and so on. The Wow! signal's highest measured value was "U" (an intensity between 30 and 31), which is thirty standard deviations above background noise.<ref name="npr" /><ref name="code" />