RST
Is the traditional Readability, Strength, Tone reporting system used for CW operations for nearly as long as amateurs have enjoyed the airwaves.
READABILITY
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Unreadable
-
Barely readable, occasional words distinguishable
-
Readable with considerable difficulty
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Readable with practically no difficulty
-
Perfectly readable (that is 100% print in todays jargon)
SIGNAL STRENGTH
-
Faint signals, barely perceptible
-
Very weak signals
-
Weak signals
-
Fair signals
-
Fairly good signals
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Good signals
-
Moderately strong signals
-
Strong signals
-
Extremely strong signals
TONE
-
Sixty cycle AC or less, very rough and broad
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Very rough AC, very harsh and broad
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Rough AC tone, rectified but not filtered
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Rough note, some trace of filtering
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Filtered rectified ac, but strongly ripple modulated
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Filtered tone, definite trace of ripple modulation
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Near pure tone, trace of ripple modulation
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Near perfect tone, slight trac of modulation
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Perfect tone, no trace of ripple, or modulation of any kind
RSQ
Give the report as RSQ for digital modes, but especially BPSK and QPSK; see: http://www.psb-info.net/RSQ-Reporting-Table.html
READABILITY
-
0% undecipherable
-
20% occasional words distinguishable
-
40% considerable difficulty, many missed characters
-
80% practically no difficulty, occasional missed characters
-
95%+ perfectly readable
STRENGTH
-
Barely perciptible trace
-
n/a
-
Weak trace
-
n/a
-
Moderate trace
-
n/a
-
Strong trace
-
n/a
-
Very strong trace
QUALITY
-
Splatter over much of the visible waterfall
-
n/a
-
Multiple visible pairs
-
n/a
-
One easily visible pair
-
n/a
-
One barely visible pair
-
n/a
-
Clean signal - no visible unwanted sidebar pairs
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