3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
This connection to this source has been verified.
If the verification fails, the text of the statement at the bottom changes to (in red):
Verification of this source failed. Check the interface connection
The selected source is also verified whenever it is acquired. If a Source’s connection
has been verified by any means, then that Source is considered to have been verified
until either the instrument software is shut down or if, in attempting to use the
Source, communication with it fails.
Show Source
Shows the capabilities of the currently selected Source. The menu is useful for
displaying source capabilities such as frequency and amplitude ranges.
Dependencies If no source is selected this control is grayed-out
Source Preset
Forces all the settings in the instrument’s Source State to their preset condition.
The Source State is the set of Source settings that is maintained and remembered
by the instrument for use in the Tracking Source Mode. The Source State variables
are controlled and set in the menus under the Source front panel key. These settings
include:
–
RF Output Off
–
Amplitude = - 10 dBm
–
Amplitude Step = Auto
–
Power Sweep = 0 dB
–
Amplitude Offset = 0 dB
–
Source Sweep Reverse = Off
–
Multiplier Numerator = 1
–
Multiplier Denominator = 1
–
Freq Offset = 0 Hz
–
Point trigger is set to "Ext1"
The Source State is saved along with the state of the current Mode when you save a
State, and is recalled when that Mode State is recalled. When the instrument first
478 Spectrum Analyzer Mode User's &Programmer's Reference