Atec Tektronix-VM700T - Manual (Page 10)

AUTO MODE (continued)
OUT-OF-SERVICE MEASUREMENTS
Measurement Range Accuracy Test Signal
Field Time Distortion 0 to 40% ±0.5% Field Square Wave
WAVEFORM DISTORTION MEASUREMENTS
Measurement Range Accuracy Test Signal
Line Time Distortion 0 to 40% of Bar ±0.2% FCC or NTC-7
Composite
Pulse to Bar Ratio 10 to 125% ±0.7% FCC or NTC-7
Composite
Short Time Waveform 0 to 25% SD ±0.5% SD NTC-7 Composite
Distortion (IEEE 511)
Chrominance Non-linear 5 to 35 IRE ±0.4 IRE NTC-7 Combination
Gain Distortion (20 IRE chroma)
45 to 160 IRE
(80 IRE chroma)
Chrominance Non-linear 0 to 360 deg ±1.0 deg NTC-7 Combination
Phase Distortion
Chrominance to ±50 IRE ±0.2 IRE NTC-7 Combination
Luminance Intermodulation
2T K-Factor 0 to 10% Kf ±0.3% Kf FCC or NTC-7
Composite
VIRS MEASUREMENTS
Measurement Range Accuracy Test Signal
VIRS Setup –20 to 130% of ±0.2% VIRS
(Reference Black) Bar (–20 to (±0.5 IRE
130 IRE when when Bar is
Bar is not used) not used)
VIRS Chrominance 0 to 200% of ±1% VIRS
Reference Amplitude burst amplitude (±0.1% when
(0 to 80% of Bar burst is not
when burst is not used and
used and 0 to ±1 IRE when
80 IRE when burst and Bar
burst and bar are not used)
are not used)
VIRS Chrominance Phase ±180 deg ±0.5 deg VIRS
Relative to Burst
VIRS Luminance Reference 30 to 100% of Bar ±0.2% VIRS
(30 to 100 IRE (±0.2 IRE)
when Bar is
not used)
SIGNAL-TO-NOISE RATIO MEASUREMENTS
Measurement Range Accuracy Test Signal
Unified Unweighted SNR 26 to 60 dB ±1.0 dB Quiet Line
61 to 70 dB ±2.0 dB
Unified Luminance 26 to 60 dB ±1.0 dB Quiet Line
Weighted SNR 61 to 70 dB ±2.0 dB
NTC 7 Unweighted SNR 26 to 60 dB ±1.0 dB Quiet Line
61 to 70 dB ±2.0 dB
NTC 7 Luminance 26 to 60 dB ±1.0 dB Quiet Line
Weighted SNR 61 to 70 dB ±2.0 dB
Periodic SNR 26 to 60 dB ±1.0 dB Quiet Line
61 to 70 dB ±2.0 dB
0
– 55
08
MHz
FL2862-1
dBV
–5
–10
–15
– 20
–25
–30
–35
–40
–45
–50
1 23 4 5 67
0
–14
05
MHz
FL2862-2
dBV
.5 1 1.5 2 3 4
–12
–10
–8
–6
–4
–2
2.5 3.5 4.5
0
–70
08
MHz
FL2862-3
dBV
1 23 4 5 67
–60
–50
–40
–30
–20
–10
0
–14
0
MHz
FL2862-4
dBV
.5 1 1.5 2 3 4
–12
–10
–8
–6
–4
–2
2.5 3.5 4.5
Unified Unweighted filter response curve per CCIR Recommendation 567.
Unified Luminance weighted filter response curve per CCIR Recommendation 567.
NTC 7 Unweighted filter response.
NTC 7 Luminance weighted filter response.
10