NARDA IDA, Руководство по эксплуатации, Страница: 193 / 292

10.3 Selecting measurement parameters
Narda IDA - 3106
185
10.3.1 Selecting Time Span, Time Resolution
1.
Press the
Time Span
softkey.

Entry is in seconds by default.
2.
Enter the desired time. This can be done in the following ways:
–
Keys:
Type in a value using the numerical keys and select the units
using the softkeys.
–
Rotary control knob
: Change the value stepwise using the rotary
control.
–
Rotary control knob + arrow keys
: Use the arrow keys to select the
digit that you want to change. Additional digits can be displayed using
the key. Change the value of the digit using the rotary control knob.
The value is changed with carry-over.
–
Entry in hh:mm:ss format:
Press the
Mode
softkey. Select a section
using the keys and change the value using the rotary control
knob.
3.
Press the
Time Resolution
softkey and enter the time in the same way.

You can only enter the Time Resolution for the
Long-Time Scope
. In
all other cases, the time resolution is determined by the CBW (time
resolution = 1/CBW)
4.
Press
OK
to complete entry.
10.3.2 Setting the channel bandwidth (CBW)
You must choose a channel bandwidth that allows the entire signal to be
captured. The maximum possible time resolution (1/CBW) results from the
bandwidth setting.
 See
Setting the bandwidth (RBW / CBW)
on page 94.