Atec Tektronix-VM700T Manual de usuario Pagina 6

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INCIDENTAL CARRIER PHASE MODULATION
Measurement Range Accuracy
ICPM (requires zero Carrier Pulse 0 to 90 deg ±1.0 deg
and the quadrature output of the
demodulator on Channel C)
JITTER
Measur
ement
Range Absolute Mode Accuracy
Jitter (2 Field) ±20 µs ±10 ns
Jitter Long Time ±20 µs ±10 ns
H
_
Jitter.
O
H
ORIZONTAL TIMING
M
easurement Range Absolute Mode Accuracy
B
urst Level 10 to 80 IRE ±0.5%
H
orizontal Sync Rise and Fall Time 80 ns to 1 µs ±10 ns
H
orizontal Sync Width 3 to 7 µs ±10 ns
B
urst Width 6 to 13 cycles ±0.1 cycles (FCC)
±
0.5 cycles (RS-170A)
S
ync to Burst Start (RS-170A) 4 to 10 µs ±150 ns
S
ync to Burst End (FCC) 4 to 10 µs ±25 ns
Front Porch 0.1 to 3.5 µs ±10 ns (FCC)
±
10 ns (RS-170A)
Sync to Setup 8.8 to 13.0 µs ±10 ns
Breezeway (FCC) 0.1 to 5 µs ±25 ns
Sync Level 20 to 80 IRE ±0.5%
Horizontal Timing measurement.
N
MEASURE MODE (continued)
FREQUENCY RESPONSE AND GROUP DELAY
A
bsolute Relative
M
easurement Range Mode Mode
Accuracy Accuracy
F
requency Response ±40 dB ±1.0 dB ±0.3 dB
G
roup Delay ±1.0 µs ±20 ns ±5 ns
M
Amplitude (dB)Amplitude (dB)
Group Delay (n sec)Group Delay (n sec)
(Ref. at 0.20 MHz)(Ref. at 0.20 MHz)
0.00.0 1.01.0 2.02.0 3.03.0 4.04.0 4.64.6
-0.20
-0.15
-0.10
-0.05
0.00
0.05
0.10
0.15
-0.20
-0.15
-0.10
-0.05
0.00
0.05
0.10
0.15
0.00.0 1.01.0 2.02.0 3.03.0 4.04.0 4.64.6
-10.0
-8.0
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
8.0
-10.0
-8.0
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
8.0
Group Delay & Gain (NTSC) Wfm -->Group Delay & Gain (NTSC) Wfm --> Sin X/X
32 -> 32
Field = 2 Line = 15Field = 2 Line = 15
AverageAverage
Frequency Response and Group Delay measurement using Sin X/X.
HORIZONTAL BLANKING
Measurement Range Absolute Mode Accuracy
Blanking Start 0.1 to 4.2 µs ±50 ns
Blanking End 6.8 to 12.2 µs ±50 ns
Blanking Width 6.9 to 16.4 µs ±50 ns
H
Timing Measurement RS-170A (NTSC)
H
Timing Measurement RS-170A (NTSC)
32 -> 32
5
.36 u sec
9
.0 cycles
37.3 IRE
3
5.7 IRE
4.64 u sec 1.78
u
sec
9.61 u sec
1
89 n sec
2
12 n sec
Field = 2 Line = 15 Field = 2 Line = 15
Average Average
Average
Num 32
Average
Num 32
Max HoldMax Hold Extract
VCR.HD.SW
Extract
VCR.HD.SW
Meas.Line
Start 20
Meas.Line
Start 20
Meas.Line
End 250
Meas.Line
End 250
RescaleRescale
LineLine
(n sec)(n sec)
-15.0 -10.0 -5.0 0.0 5.0 10.0 15.0-15.0 -10.0 -5.0 0.0 5.0 10.0 15.0
FF
FF
II
II
EE
EE
LL
LL
DD
DD
11
22
1111
525525
H Sync Jitter in a Frame (NTSC) H Sync Jitter in a Frame (NTSC)
32 -> 32
Jitter (Line 20 to 250) -- 4 n sec p-p
Average Average
6
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