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VERTICAL BLANKING
M
easurement Range Absolute Mode Accuracy
E
qualizing Pulse Width 80 ns to 1 µs ± 10 ns
B
road Pulse Width 80 ns to 1 µs ± 10 ns
V
ertical Blanking Field 1 19 to 30 lines NA
Vertical Blanking Field 2 19 to 30 lines NA
Noise Spectrum measurement.
Ve
rtical Blanking display.
M
EASURE MODE (continued)
NOISE SPECTRUM
M
easurement Range Absolute Mode Accuracy
Unweighted Signal-to-Noise –20 to –80 dB ± 0.4 dB
(
5 MHz Low Pass) (–20 to –60 dB)
±
1.0 dB
(–60 to –70 dB)
L
uminance Weighted Signal-to-Noise –20 to –80 dB ± 1.0 dB
(5 MHz Low Pass and (–20 to –60 dB)
Unified Weighting) ± 2.0 dB
(
–60 to –70 dB)
C
hrominance Weighted –20 to –80 dB ± 1.0 dB
S
ignal-to-Noise (–20 to –60 dB)
±
2.0 dB
(–60 to –70 dB)
SCH PHASE
Measurement Range Absolute Mode Accuracy
SCH Phase ± 90 deg ±5 deg
Sync Timing ± 1 µS ± 10 nS
Burst Timing ± 180 deg ± 5 deg
Vertical Blanking Serration Pulse measurement.
Blanking
Display
Blanking
Display
Equalizer
Pulse
Equalizer
Pulse
Broad
Pulse Sep
Broad
Pulse Sep
V Sync
Display
V Sync
Display
Average
Num 32
Average
Num 32
RescaleRescale
Timing DisplayTiming Display
V
ertical Blanking (Sync = B)
V
ertical Blanking (Sync = B)
4.70 u sec
258 n sec
243 n sec
Average Off Average Off
SCH Phase measur
ement.
Source
Only
Source
Only
Source and
Chan. A
Source and
Chan. A
Source and
Chan. B
Source and
Chan. B
Source and
Chan. C
Source and
Chan. C
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
SCH Phase MeasurementSCH Phase Measurement 625 line PAL 625 line PAL Ch A SCH -3.2 deg
Ch B SCH -1.7 deg
Rel Burst -29.9 deg
Rel Sync 19 nsec
Color Frame Derived
from Channel B SCH
Sync Relative Timing (nsec)
1000-1000 100-100 10-10 0
Burst Relative Phase (deg)
180-180 30-30 10-10 3-3 0
Average 32 -> 32
Amplitude (0 dB = 700 mV p-p)Amplitude (0 dB = 700 mV p-p)
(MHz)(MHz)
-84.0
-82.0
-80.0
-78.0
-76.0
-74.0
-72.0
-70.0
-68.0
-66.0
-64.0
-62.0
-60.0
1.0 2.0 3.0 4.0 5.0 6.0
-84.0
-82.0
-80.0
-78.0
-76.0
-74.0
-72.0
-70.0
-68.0
-66.0
-64.0
-62.0
-60.0
1.0 2.0 3.0 4.0 5.0 6.0
Noise Spectrum (Sync = B) Wfm --> Noise Spectrum (Sync = B) Wfm --> Pedestal
32 -> 32
Cursor1 3.71 MHz(+-34 kHz Band) -78.4 dB p-p
Cursor2 5.58 MHz(1.87 MHz above) -79.7 dB p-p ( -1.3 dB Diff)
Noise Area in Cursors -72.0 dB rms
Noise Level = -66.2 dB rms
Band width 100kHz to Full Band width 100kHz to Full
Line = 12 (SIS mode) Line = 12 (SIS mode)
Average Average
8
Blanking
Display
Blanking
Display
Equalizer
Pulse
Equalizer
Pulse
Broad
Pulse Sep
Broad
Pulse Sep
V Sync
Display
V Sync
Display
Full DisplayFull Display
F1F1
F2F2
F3F3
F4F4
Vertical Blanking (Sync = B) Vertical Blanking (Sync = B)
Line = 12 (SIS mode) Line = 12 (SIS mode) Line = 12 (SIS mode)
Bruch Sequence OK
Line = 12 (SIS mode)