Chrominance Non-Linearity; Differential Gain And Phase; Color Bar - Tektronix VM700T Product Information

MEASURE MODE (continued)

CHROMINANCE NON-LINEARITY

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Measurement Range
Chrominance Amplitude 0 to 100%
Chrominance Phase 0 to 360 deg
Chrominance to Luminance –50 to +50%
Intermodulation
Chrominance Nonlinearity Chrominance Nonlinearity
Line = 331 (SIS mode) Line = 331 (SIS mode)
Chrominance Amplitude Error (%) Chrominance Amplitude Error (%)
-2.2 0.0
0.0 0.0
-1.0 -1.0
-2.0 -2.0
-3.0 -3.0
Chrominance Phase Error (deg) Chrominance Phase Error (deg) Ref = 420 mV Packet Ref = 420 mV Packet
0.1 0.0
0.4 0.4
0.2 0.2
0.0 0.0
-0.2 -0.2
-0.4 -0.4
-0.6 -0.6
Chrominance Luminance Intermodulation (% of 700 mV) Chrominance Luminance Intermodulation (% of 700 mV)
-0.0 -0.1
-0.00 -0.00
-0.05 -0.05
-0.10 -0.10
140 mV 140 mV
Average Average 32 -> 32
Chrominance Non-Linearity measurement.

COLOR BAR

Measurement Range
Luminance Level 0 to 700 mV
Chrominance Level 0 to 700 mV
(excluding gray and black)
Chrominance Phase ± 180 deg
4 4 Accuracies for chrominance non-linearity amplitude and phase measurements assume an average of 256.
Absolute Relative
Mode Mode
Accuracy Accuracy
± 0.4% ± 0.2%
± 1 deg ± 0.2 deg
± 0.2% ± 0.2%
Wfm --> Wfm --> Mod 3 Step
Ref = 420 mV Packet Ref = 420 mV Packet
-1.5
-0.2
-0.1
420 mV 420 mV 700 mV 700 mV
Absolute Relative
Mode Mode
Accuracy Accuracy
± 3.5 mV ± 0.2%
± 1.0% of ± 0.2%
nominal
± 0.5 deg ± 0.1 deg
ColourBar (Sync = B) ColourBar (Sync = B)
Line = 446 (SIS mode) Line = 446 (SIS mode)
Luminance Level (mV ) Luminance Level (mV )
700.6 464.9 369.9 309.9
1000.0 1000.0
500.0 500.0
0.0 0.0
Chrominance Level (mV ) Chrominance Level (mV )
0.7 474.4 670.2 620.8
1000.0 1000.0
500.0 500.0
0.0 0.0
Chrominance Phase (deg) Chrominance Phase (deg)
------- 166.6 283.0 240.9
400.0 400.0
300.0 300.0
200.0 200.0
100.0 100.0
0.0 0.0
Gray Gray Yellow Yellow Cyan Cyan Green Green
Average Average 32 -> 32
Color Bar measurement.

DIFFERENTIAL GAIN AND PHASE

Measurement Range
Differential Gain 0 to 100%
(Minimum, Maximum, and Peak)
Differential Phase 0 to 360 deg
(Minimum, Maximum, and Peak)
DG DP (Sync = B) DG DP (Sync = B)
Line = Line = 19 (SIS mode) 19 (SIS mode)
Differential Gain (%) Differential Gain (%) min =
0.00 0.66 0.56
0.8 0.8
0.6 0.6
0.4 0.4
0.2 0.2
0.0 0.0
-0.2 -0.2
Differential Phase (deg) Differential Phase (deg) min = -0.92
0.00 -0.01 -0.18
0.4 0.4
0.2 0.2
0.0 0.0
-0.2 -0.2
-0.4 -0.4
-0.6 -0.6
-0.8 -0.8
-1.0 -1.0
-1.2 -1.2
-1.4 -1.4
1st. 1st. 2nd. 2nd. 3rd. 3rd.
Special Positioning is in use Special Positioning is in use
Average Average 32 -> 32
Differential Gain and Phase measurement.
Wfm --> Wfm --> Colour Bar
214.6 154.7 59.6 -0.3
621.7 670.7 476.6 0.6
61.0 103.0 346.6 -------
Magenta Magenta Red Red Blue Blue Black Black
Absolute Relative
Mode Mode
Accuracy Accuracy
± 0.3% ± 0.03%
± 0.3 deg ± 0.03 deg
Wfm --> Wfm --> Composite
0.00 max = 0.66 pk-pk = 0.66
0.38 0.40 0.31
max = 0.00 pk-pk = 0.92
-0.68 -0.92 -0.87
4th. 4th. 5th. 5th. 6th. 6th.
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