Reference
3–2
1710J-Series Waveform Monitors
100
80
60
40
20
–20
–40
NTSC
7.5
12.5%
0%
75%
100%
2% & 4% K FACTOR
Tek
Figure 3–1: NTSC graticule
Making Measurements. To use the NTSC vertical scale to make line time
distortion and pulse-to-bar ratio measurements, set the signal blanking level at
the graticule blanking line (0 IRE) and position the leading edge of the Compos-
ite Test Signal bar to the ascending arrow (just right of graticule center). Check
to see if insertion gain is unity. Check to see that the negative-going bar
transition passes through the descending arrow.
To measure the K-Factor line time distortion, measure the largest deviation of the
bar top (tilt or rounding) within the structure. The structure is designed to ignore
the first and last 1
m
s of the bar where short-time distortions (ringing, overshoot,
undershoot, etc.) occur. The solid outer box equals a 4% K-Factor, while the
dashed line inner box equals a 2% K-Factor.
NOTE
. For signals with a bar HAD that exceeds 18
m
s, simply measure the bar
top in increments by positioning the bar to the left or right from the leading or
trailing edge. Note that when the leading or trailing edge is on the appropriate
arrow, the first or last 1
m
s is automatically excluded from the measurement.
Содержание 1710J Series
Страница 4: ......
Страница 14: ...Table of Contents x 1710J Series Waveform Monitors ...
Страница 18: ...Service Safety Summary xiv 1710J Series Waveform Monitors ...
Страница 22: ...Preface xviii 1710J Series Waveform Monitors ...
Страница 23: ...Getting Started ...
Страница 24: ......
Страница 45: ...Operating Basics ...
Страница 46: ......
Страница 55: ...Reference ...
Страница 56: ......
Страница 64: ...Reference 3 8 1710J Series Waveform Monitors ...
Страница 65: ...Specifications ...
Страница 66: ......
Страница 74: ...Specifications 4 8 1710J Series Waveform Monitors ...
Страница 76: ......
Страница 77: ...Theory of Operation ...
Страница 78: ......
Страница 100: ...Theory of Operation 5 22 1710J Series Waveform Monitors ...
Страница 101: ...Performance Verification ...
Страница 102: ......
Страница 120: ...Performance Verification 6 18 1710J Series Waveform Monitors ...
Страница 121: ...Adjustment Procedure ...
Страница 122: ......
Страница 138: ...Adjustment Procedure 7 16 1710J Series Waveform Monitors ...
Страница 139: ...Maintenance ...
Страница 140: ......
Страница 168: ...Maintenance 8 28 1710J Series Waveform Monitors Figure 8 11 Repackaging a 1710J Series Waveform Monitor ...
Страница 169: ...Replaceable Electrical Parts ...
Страница 170: ......
Страница 204: ...Replaceable Electrical Parts 9 34 1710J Series Waveform Monitors ...
Страница 205: ...Diagrams ...
Страница 206: ......
Страница 226: ......
Страница 227: ...Replaceable Mechanical Parts ...
Страница 228: ......
Страница 239: ...Replaceable Mechanical Parts 1710J Series Waveform Monitors 11 11 1 2 3 4 5 6 Figure 11 4 Accessories ...
Страница 240: ...Replaceable Mechanical Parts 11 12 1710J Series Waveform Monitors ...
Страница 244: ...Glossary Glossary 4 1710J Series Waveform Monitors ...
Страница 251: ......
Страница 252: ......