Measure Mode; Chrominance To Luminance; Chrominance Noise - Tektronix VM700T Product Information

MEASURE MODE

1,2
BAR LINE TIME
Measurement Range
Bar Level (b1 or Back Porch) 300 mV to 1.4 V
Sync Level 50 mV to 600 mV
Sync to Bar Top 350 mV to 2 V
Sync/Bar Ratio 10% to 125%
100% nominal
Bar Tilt (Rec 569) 0 to 20%
Line Time Distortion 0 to 20%
(Rec 567)
Bar Width 10 µS to 30 µS
Bar & LineTime Bar & LineTime
Line = 330 (SIS mode) Line = 330 (SIS mode)
100 % = Bar Level 100 % = Bar Level
120.0 120.0
110.0 110.0
100.0 100.0
90.0 90.0
80.0 80.0
70.0 70.0
60.0 60.0
50.0 50.0
40.0 40.0
30.0 30.0
20.0 20.0
10.0 10.0
0.0 0.0
Average Average 32 -> 32
Bar Line Time measurement.
BOUNCE
Measurement Range
Peak Deviation 0 to 50%
Settling Time 0 to 10 sec
1 All accuracies for measurements with averaging capabilities assume the default average of 32.
2 All accuracies for measurements with relative to reference mode assume an average of 256 was
used to create the reference.
3 Requires a reference signal.
4
Absolute Relative
Mode Mode
Accuracy Accuracy
± 0.5% ± 0.2%
± 0.5% ± 0.2%
± 0.5% ± 0.2%
± 0.5% ± 0.2%
± 0.2% ± 0.1%
± 0.2% ± 0.1%
± 100 nS NA
Wfm --> Wfm --> Bar
Bar Level = 700.6 mV
(Ref. b1)
Bar Level = 700.2 mV
(Ref. Back Porch)
Sync Level = 299.4 mV
Sync to Bar Top = 999.6 mV
Sync/Bar Ratio = 99.7 %
(100% = 3/7)
LineTime Dist. = 0.1 %
(Rec. 567)
Bar Tilt = -0.1 %
(Rec. 569)
Bar Width = 10.0 u sec
Accuracy
± 1%
± 100 msec
BURST FREQUENCY 3
Measurement Range
Burst Frequency Error ± 100 Hz

CHROMINANCE TO LUMINANCE

Measurement
Chrominance to Luminance Delay
Chrominance to Luminance Gain Ratio
Chrom/Lum Gain Delay Chrom/Lum Gain Delay
Line = Line = 17 (SIS mode) 17 (SIS mode)
Chroma Gain (%) Chroma Gain (%)
114.0 114.0
112.0 112.0
110.0 110.0
108.0 108.0
106.0 106.0
104.0 104.0
102.0 102.0
100.0 100.0
98.0 98.0
96.0 96.0
94.0 94.0
92.0 92.0
90.0 90.0
88.0 88.0
86.0 86.0
-60.0 -60.0 -40.0 -40.0 -20.0 -20.0
Chroma Delay (n sec) Chroma Delay (n sec)
Average Average 32 -> 32
Chrominance to Luminance Gain and Delay measurement.

CHROMINANCE NOISE

Measurement Range
AM Noise –20 to –80 dB
PM Noise –20 to –70 dB
Relative Mode Accuracy
± 0.5 Hz
Absolute Relative
Range Mode Mode
Accuracy Accuracy
± 300 ns ± 5 ns ± 1.0 ns
0 to 160% ± 1.0% ± 0.1%
Wfm --> Wfm --> Pulse
Chroma Gain = 99.9 %
Chroma Delay = 5.7 n sec
0.0 0.0 20.0 20.0 40.0 40.0 60.0 60.0
Absolute Mode Accuracy
± 1 dB (–20 to –60 dB)
± 1 dB (–20 to –60 dB)