NARDA SRM-3006, Operating Manual

Page: 126 / 240

8 Spectrum Analysis Mode
114
SRM-3006 Narda
8.4 The Marker function (Marker)
Spectrum Analysis • Marker
⇒
See The Marker function on page 77 .
8.5 The Zoom function (Zoom)
Spectrum • Zoom
You can display a narrower section of the selected frequency band in more
detail so that you can examine the measurement trace more precisely. A
new measurement is performed when you activate this function. New
measurement parameters such as a new resolution bandwidth might be set
automatically for this measurement.
Possible entry methods
The type of entry method is selected using the
Entry
softkey:
•
Numerical
: Numerical entry using the number keys and decimal point key
in the keypad.
•
Graphical
: Entry using the rotary control together with the arrow keys.
Note:
The description of how to define the zoom range given here does not
explain how to use the rotary control and keypad. Information about
this is found under
Fundamental operating steps on page 46 .
Setting the zoom range using frequency limits
1.
Press the
Zoom Min
softkey to set the lower frequency limit.
ª
The diamond of the left marker will be filled out in black if graphical
entry is selected.
2.
Use the rotary control or the keypad to specify the lower frequency limit
and then press the
OK
key to save the setting.
3.
Press the
Zoom Max
softkey to set the upper frequency limit.
ª
The diamond of the right marker will be filled out in black if graphical
entry is selected.
4.
Use the rotary control or the keypad to specify the upper frequency limit
and then press the
OK
key to save the setting.