Tektronix CTS 850, User Manual

Page: 67 / 178

Functional Overview
CTS850 SDH/PDH Test Set User Manual
2–17
Changing Parameters
Most of the menu pages in the CTS850 contain parameters (or
settings) that you can change. The choices available for a parameter
appear in four ways (examples in parentheses):
H
As a list (Test Pattern: PRBS 2^23–1, PRBS 2^20–1, ...)
H
As a decimal number (Frequency Offset: 74.3 ppm)
H
As a binary number (Z1 Byte: 10101111)
H
As a text string (File Name: TEST_34)
Selecting Parameters
To change a parameter, use the knob to highlight it. As you turn the
knob, the highlight moves from parameter to parameter (see Figure
2–12).
This is the selected parameter. It is
identified by the location of the highlight.
Turning
the knob
moves the
highlight to
another
parameter.
Figure 2–12: Selecting a Parameter
The parameter values displayed in high-intensity text indicate
parameters that you can change. If a parameter is displayed in
dimmed text, it cannot be selected under the current setup.