Atec Tektronix-VM700T Uživatelský manuál stáhnout pdf (Strana 4)

MEASURE MODE

BAR LINE TIME

bsolute Relative

easurement Range Mode Mode

ccuracy Accuracy

ar Level 50 to 200 IRE ±0.5% ±0.2%

ync Level 20 to 80 IRE ±0.5% ±0.2%

ync to Bar Top 70 to 280 IRE ±0.5% ±0.2%

Sync/Bar Ratio 10% to 125% ±0.5% ±0.2%

00% 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

BOUNCE

Measurement Range Accuracy

Peak Deviation 0 to 50% ±1%

Settling Time 0 to 10 sec ±100 msec

BURST FREQUENCY

Measurement Range Relative Mode Accuracy

Burst Frequency Error ±100 Hz ±0.5 Hz

Bar Line Time measurement.

HROMINANCE TO LUMINANCE GAIN AND DELAY

bsolute Relative

Measurement Range Mode Mode

ccuracy Accuracy

Chrominance to Luminance Delay ±300 ns ±5 ns ±1.0 ns

Chrominance to Luminance Gain Ratio 0 to 160% ±1.0% ±0.1%

hrominance to Luminance Gain and Delay measurement.

CHROMINANCE FREQUENCY RESPONSE

Absolute Relative

Measurement Range Mode Mode

Accuracy Accuracy

Reference Amplitude 0 to 100 IRE ±1% ±0.5%

Frequency Response 0 to 100 IRE ±1% ±0.5%

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)

All accuracies for measur

ements with averaging capabilities assume the default average of 32.

All accuracies for measurements with relative to reference mode assume an average of 256 was used to

eate the r

efer

ence.

Requires a reference signal.

0.0

10.0

20.0

30.0

40.0

0.0

60.0

70.0

80.0

90.0

100.0

10.0

120.0

0.0

10.0

20.0

30.0

40.0

0.0

60.0

70.0

80.0

90.0

100.0

10.0

120.0

Bar & LineTime (NTSC) Wfm --> Bar & LineTime (NTSC) Wfm -->

100 % = Bar Level100 % = Bar Level

FCC Composite

2 -> 32

ar Level = 93.5 IRE

(Ref. b1)

Bar Level = 93.5 IRE

(Ref. Back Porch)

Sync Level = 35.8 IRE

Sync to Bar Top = 129.3 IRE

Sync/Bar Ratio = 95.8 %

(100% = 4/10)

LineTime Dist. = 1.8 %

(

Rec. 567)

Bar Tilt = 1.2 %

(Rec. 569)

Bar Width = 18.0 u sec

Field = 1 Line = 16 Field = 1 Line = 16

verage

Average

Num 32

Average

Num 32

Relative

to Ref

Relative

to Ref

ReferenceReference AcquireAcquire VITS

VITS

RescaleRescale

Chroma Gain (%)Chroma Gain (%)

Chroma Delay (n sec)Chroma Delay (n sec)

80.0

85.0

90.0

95.0

100.0

105.0

110.0

115.0

-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0

80.0

85.0

90.0

95.0

100.0

105.0

110.0

115.0

-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0

Chrom/Lum Gain Delay (NTSC) Wfm --> Chrom/Lum Gain Delay (NTSC) Wfm --> FCC Composite

32 -> 32

Field = 1 Line = 16 Field = 1 Line = 16

Average Average

Chroma Gain = 85.3 %

Chroma Delay = 9.3 n sec

1 2 3 4 5 6 7 8 9 ... 15 16

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