Tektronix WFM 601i, User Manual

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WFM 601i Serial Component Monitor
3–1
Graticules
This monitor uses an internal graticule for waveform measurements. The internal
graticule scales are on the same plane as the CRT phosphor, eliminating parallax
errors. Graticule illumination can be adjusted through the CRT menu to provide
optimum brightness for viewing or photographing displays.
In addition to the CRT graticules, the WFM 601i displays electronic graticules in
the Vector, Lightning, and Diamond display modes. See Page 3–3 for a
discussion of the electronic graticules.
This is the graticule that is permanently etched on the CRT faceplate glass. It has
controlled illumination, which varies between off and a level sufficient to make
measurements in the presence of normal room light.
.7
.6
.8
.5
.4
.3
.2
.1
–.1
–.2
–.3
Tek
COMPONENT ANALOG
2% & 4% K
PB
100%
50%
Figure 3-1: Waveform measurement graticule.
Vertical Scale This graticule scale facilitates Waveform, and Parade
measurements. See Figure 3-1. The scale is marked in millivolts (mV) and
extends from –300 mV to +800 mV in 100 mV increments. Each major division
is divided into 5 minor divisions which equal 20 mV each.
Internal Etched Waveform
Graticule