Tektronix 1760 series, Руководство пользователя

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1760 Series Component Waveform/Vector Monitor User Manual
4-1
Basic Measurements
Basic Measurements
contains 1760--Series graticule descrip-
tions, followed by specific measurement procedures.
This monitor uses an internal graticule, which combines wa-
veform and vector markings. The internal graticule scales
are on the same plane as the CRT phosphor, eliminating par-
allax errors. Graticule illumination can be adjusted through
the
CRT
menu (page 3-27) to provide optimum brightness for
viewing or photographing displays.
Waveform Graticule
There are three versions of the waveform graticule, illus-
trated in Figure 4-1, Figure 4-2, and Figure 4-3:
H
NTSC composite video graticule (1760).
H
CCIR composite graticule (1761).
H
Dual standard graticule (1765).
Horizontal Scale
The 0 IRE (0.3V) graticule line is divided into 12 major divi-
sions. Each division represents a unit of time determined by
the
SWEEP
and
MAG
settings. Line sweep rates are as fol-
lows:
SWEEP
MAG ON
TIME/DIV
1 LINE SWEEP
2 LINE SWEEP
5 µ S/D
iv
10 µ S/D
iv
200 nS/D
iv
1 µ S/D
iv
In
2 FIELD SWEEP
with
MAG ON
,
the entire vertical interval
can be viewed.