Auto Mode - Tektronix VM700T Product Information

AUTO MODE

LINE BLANKING TIMING MEASUREMENTS
These measurements are all made on samples acquired from the live signal area. With
the exception of Line Sync Rise Time and Fall Time, these measurements are made in
accordance with CCIR Report 624-1.
Measurement Range
Color Burst Duration 6 to 13 cycles (10 cycles nominal)
Front Porch Duration 0.5 to 3 µs (1.5 µsnominal)
Line Blanking 9 to 16 µs (12 µsnominal)
Line Sync Rise and Fall Times 120 to 300 ns
300 ns to 1 µs
Line Sync 1.4 to 6.6 µs (4.7 µs nominal)
Sync-to-Start of Burst 2.2 to 8 µs (5.6 µs nominal)
Burst Duration 1.4 to 3 µs
SCH Phase ± 90 deg
FIELD BLANKING TIMING MEASUREMENTS
Measurement Range
Equalizing Pulse Duration 1.4 to 20 µs (2.35 µs nominal)
Broad Pulse Separation 1.4 to 20 µs (4.7 µs nominal)
OTHER TIMING MEASUREMENTS
Measurement Range
Bar Rise Time 120 to 300 ns
0.3 to 1.0 µs
AMPLITUDE AND PHASE MEASUREMENTS
Measurement Range
Average Picture Level 0 to 200%
Sync Amplitude Error +100 to –50%
(300 mV nominal) of nominal
Sync Amplitude Error +100 to –50%
(with Sound-in-Sync) (300 mV nominal) of nominal
Burst Amplitude Error +80 to –50%
(300 mV nominal)
Chrominance Reference –80 to +50%
Amplitude Error (300 mV nominal)
Luminance Bar +30 to –70%
Amplitude Error (700 mV nominal)
Luminance Bar 200 to 900 mV
Amplitude
Luminance Bar 0 to 90% of
Amplitude Maximum Carrier
(% of carrier)
Residual Carrier 0 to 90% of
(Bar Top) Maximum Carrier
Blanking Level 0 to 90% of
Zero Carrier
Chrominance-Luminance ± 75% of bar
Gain Inequality amplitude
Chrominance-Luminance ± 300 ns
Delay Inequality (0 ns nominal)
Sync/Bar Rel. 3/7 20 to 110%
Sync to Bar Top 0.5 to 2 V
C/L Gn Err (using ± 50%
modulated Pulse)
Sync Amplitude 75 to 600 mV
Burst Amplitude 75 to 600 mV
Burst Amplitude
Difference
Burst Quadrature Error
Accuracy
± 0.1 cycle
± 20 ns
± 50 ns
±15 ns
± 30 ns
± 10 ns
± 20 ns
± 25 ns
± 5 deg
Accuracy
± 10 ns
± 10 ns
Accuracy ITS Element Standard
± 20 ns B2 Measured from
± 30 ns 10% to 90%
points
Accuracy ITS Element Standard
± 3%
± 0.5% Live picture
area CCIR Rec. 569
± 0.3% Last broad CCIR Rec. 569
pulse in field
± 1.0% Live picture CCIR Rec. 569
area
± 1.0% D2 CCIR Rec. 569
± 0.3% B2 CCIR Rec. 569
± 2.2 mV B2
± 0.3% B2 and
Zero Carrier
± 0.3% B2 and
Zero Carrier
± 0.2% Live picture CCIR Rep. 624-1
area
± 1.0% G1 or G2 CCIR Rec. 569
± 5 ns F or G1 CCIR Rec. 569
or G2
± 0.5% B2 CCIR Rec. 569
± 0.5% B2 CCIR Rec. 569
± 1% F
± 1.5 mV
± 3 mV
± 2%
± 1 deg
AMPLITUDE AND PHASE MEASUREMENTS (continued)
Measurement Range
Differential Gain 0 to +100%
(Peak and p-p) (0% nominal)
Differential Phase 0 to 360 deg
(Peak and p-p) (0 deg nominal)
FREQUENCY RESPONSE MEASUREMENTS
Measurement Range
Multiburst Flag 20 to 130% of bar ± 0.5%
Amplitude (60% nominal)
Multiburst Amplitude 0 to 200% of flag ± 1.5% of
(100% nominal)
WAVEFORM DISTORTION MEASUREMENTS
Measurement Range
Baseline Distortion 50% of bar
2T Pulse/Bar +25 to –90%
Ratio Error (0% nominal)
2T Pulse K-factor 0 to 10% Kf
(0% Kf nominal)
Bar Tilt 0 to 40%
(End Points) (0%nominal)
Bar Tilt 0 to +40%
(Peak-to-Peak) (0% nominal)
Line Time Distortion 0 to 40% of bar
Bar Tilt (Rec 569) 0 to 40% of bar
Field Time Distortion 0 to 35%
Chrominance-Luminance ± 50%
Intermodulation (0% nominal)
Luminance Non-linear 0 to 50%
Distortion (0% nominal)
LOW FREQUENCY ERROR
Measurement Range
Low Frequency Error 0% to 25%
(Reported as: CCIR LF Error (0% nominal)
50-550 Hz LF Error
10-1000 Hz LF Error)
NOISE MEASUREMENTS
Measurement Range
Unweighted SNR 26 to 60 dB
(567) 61 to 70 dB
Luminance Weighted SNR 26 to 60 dB
(567) 61 to 70 dB
Chrominance Weighted SNR 26 to 60 dB
61 to 70 dB
Periodic SNR 26 to 60 dB
61 to 70 dB
Unweighted SNR 26 to 60dB
(569) 61 to 70 dB
Luminance Weighted SNR 26 to 60 dB
(569) 61 tp 70 dB
INCIDENTAL CARRIER PHASE MODULATION
Measurement
ICPM (requires zero Carrier Pulse and the quadrature
output of the demodulator on Channel C)
Accuracy ITS Element Standard
± 0.3% D2 CCIR Rec. 569
± 0.3 deg D2 CCIR Rec. 569
Accuracy ITS Element Standard
C1 CCIR Rec. 567
C2 CCIR Rec. 567
flag (± 2.5%
of 5.8 MHz
packet)
Accuracy ITS Element Standard
± 0.3% B1 CCIR Rec. 569
± 0.5% B1 CCIR Rec. 569
± 0.3% Kf B1 CCIR Rec. 569
0.2% B2 CCIR Rec. 567
± 0.2% B2 CCIR Rec. 567
± 0.2% B2 CCIR Rec. 560
± 0.2% B2 CCIR Rec. 569
± 0.5% Field Square
Wave
± 0.2% G1 or G2 CCIR Rec. 569
± 0.4% D1 CCIR Rec. 569
Accuracy Standard
± 0.8% CCIR Rec. 569
Accuracy Standard
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rec. 567
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rec. 567
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rep. 637-2
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rep. 637-2
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rec. 569
± 1.0 dB Measured on one quiet
± 2.0 dB line per CCIR Rec. 569
Range Accuracy
0 to 30 deg. ± 1.0 deg.
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