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Readability
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1
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Unreadable
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2
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Barely readable, occasional words distinguishable
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3
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Readable with considerable difficulty
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4
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Readable with practically no difficulty
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5
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Perfectly readable
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Signal Strength
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1
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Faint signals, barely perceptible
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2
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Very weak signals
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3
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Weak signals
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4
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Fair signal
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5
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Fairly good signals
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6
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Good signals
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7
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Moderately strong signals
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8
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Strong signals
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9
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Extremely strong signals
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Tone
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1
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Sixty-cycle ac or less, very rough and broad
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2
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Very rough ac, very harsh and broad
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3
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Rough ac tone, rectified but not filtered
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4
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Rough note, some trace of filtering
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5
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Filtered rectified ac but strong ripple-modulated
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6
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Filtered tone, definite trace of ripple modulation
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7
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Near pure tone, trace of ripple modulation
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8
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Near perfect tone, slight trace of ripple modulation
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9
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Perfect tone, no trace of ripple or modulation of any kind
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If the signal has the characteristic steadiness of crystal control, add the letter X to the report. If there is a chirp, add the letter C. Similarly for a click, add K. (See FCC Regulations #97.307, Emissions Standards.) The above reporting system is used on both CW and voice; leave out the "tone" report on voice.
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