Tektronix CTS 850, User Manual

Page: 157 / 178

Setting Jitter/Wander Parameters
CTS850 SDH/PDH Test Set User Manual
3–173
To set an independent frequency offset for the Jitter Clock Output:
Press Menu
Button Select Menu
Page Highlight
Parameter
Select Choice
TRANSMIT JITTER &
WANDER Jitter Output Clock 0.8V
Jitter Clock Offset as appropriate
Setting the Jitter Frequency and Amplitude
The generated jitter is a sinusoidal modulation of the nominal line or
clock rate. Refer to the Modulation Range specifications for details
about jitter/wander generation capability. To set the modulation
frequency:
Press Menu
Button Select Menu
Page Highlight
Parameter
Select Choice
TRANSMIT JITTER &
WANDER Jitter Frequency as appropriate
H
Select USER DEFINED to specify a jitter frequency different
from the predefined choices. Use these choices: Course – to
adjust most significant digit or change decade scale; Medium – to
adjust second digit; Fine – to adjust third digit.
NOTE
. To generate jitter, set the Jitter Frequency to 10 Hz or greater.
To generate wander, set the Jitter Frequency to less than 10 Hz.