Technical data

136 Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz
6 Display
lines are specified with time, rather than frequency, the Rel setting only affects the
amplitude values. The current amplitude values will be relative to the displayed reference
level amplitude, but the time values will always start at the left edge of the graticule.
For example, assume you have a frequency limit line. If the limit line is specified as fixed
(Fixed) entering a limit line segment with a frequency coordinate of 300 MHz displays the
limit line segment at 300 MHz. If the same limit line table is specified as relative (Rel), it is
displayed relative to the N8201A center frequency and reference level. If the center
frequency is at 1.0 GHz, a relative limit line segment with a frequency coordinate of 300
MHz will display the limit line segment at 1.3 GHz. If the amplitude component of the
relative limit line segment is –10 dB, the – 10 dB is added to the reference level value to
obtain the amplitude of the given segment (reference level offset included).
A limit line entered as Fixed may be changed to Rel, and one entered as Rel may be changed
to Fixed. When changing between fixed and relative limit lines, the frequency and amplitude
values in the limit line table change so that the limit line remains in the same position for
the current frequency and amplitude settings of the N8201A. If a time and amplitude limit
line is used, the amplitude values change but the time values remain the same.
Key Path: Display, Limits
Factory Default: Fixed for a new limit.
Remote Command:
If you need to change the domain with :CALCulate:LLINe:CONTrol:DOMain, do
it before this command. Changing the domain deletes all the existing limit line values.
:CALCulate:LLINe:CMODe FIXed|RELative
:CALCulate:LLINe:CMODe?
Example:
:CALC:LLIN:CMOD FIX
Delete All Limits
Deletes all limit lines. Pressing Delete Limits purges the data from the limit-line tables.
Pressing Delete Limits after the prompt, If you are sure, press key again to delete, will
delete the limits.
Key Path: Display, Limits
Factory Preset and *RST: Not affected by preset.
Remote Command:
:CALCulate:LLINe:ALL:DELete