Tektronix VM700T - Manual (Page 4)

Bar Line Time measurement.
Chrominance to Luminance Gain and Delay measurement.
MEASURE MODE 1,2
BAR LINE TIME
Absolute Relative
Measurement Range Mode Mode
Accuracy Accuracy
Bar Level (b1 or Back Porch) 300 mV to 1.4 V ± 0.5% ± 0.2%
Sync Level 50 mV to 600 mV ± 0.5% ± 0.2%
Sync to Bar Top 350 mV to 2 V ± 0.5% ± 0.2%
Sync/Bar Ratio 10% to 125% ± 0.5% ± 0.2%
100% nominal
Bar Tilt (Rec 569) 0 to 20% ± 0.2% ± 0.1%
Line Time Distortion 0 to 20% ± 0.2% ± 0.1%
(Rec 567)
Bar Width 10 µS to 30 µS ± 100 nS NA
BURST FREQUENCY 3
Measurement Range Relative Mode Accuracy
Burst Frequency Error ± 100 Hz ± 0.5 Hz
CHROMINANCE TO LUMINANCE
Absolute Relative
Measurement Range Mode Mode
Accuracy Accuracy
Chrominance to Luminance Delay ± 300 ns ± 5 ns ± 1.0 ns
Chrominance to Luminance Gain Ratio 0 to 160% ± 1.0% ± 0.1%
BOUNCE
Measurement Range Accuracy
Peak Deviation 0 to 50% ± 1%
Settling Time 0 to 10 sec ± 100 msec
CHROMINANCE NOISE
Measurement Range Absolute Mode Accuracy
AM Noise –20 to –80 dB ± 1 dB (–20 to –60 dB)
PM Noise –20 to –70 dB ± 1 dB (–20 to –60 dB)
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.
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
120.0
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
110.0
120.0
Bar & LineTime Wfm --> Bar & LineTime Wfm -->
100 % = Bar Level 100 % = Bar Level
Bar
32 -> 32
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
Line = 330 (SIS mode) Line = 330 (SIS mode)
Average Average
Chroma Gain (%) Chroma Gain (%)
Chroma Delay (n sec) Chroma Delay (n sec)
86.0
88.0
90.0
92.0
94.0
96.0
98.0
100.0
102.0
104.0
106.0
108.0
110.0
112.0
114.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
86.0
88.0
90.0
92.0
94.0
96.0
98.0
100.0
102.0
104.0
106.0
108.0
110.0
112.0
114.0
-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0
Chrom/Lum Gain Delay Wfm --> Chrom/Lum Gain Delay Wfm --> Pulse
32 -> 32
Line = 17 (SIS mode) Line = 17 (SIS mode)
Average Average
Chroma Gain = 99.9 %
Chroma Delay = 5.7 n sec
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