1057
Meas Setup
is “On”, entering a limit line segment with a frequency coordinate of 300 MHz displays the limit line segment at
CF + 300 MHz, or 1.3 GHz. Furthermore, if the center frequency changes to 2 GHz, the limit line segment is
displayed at CF + 300 MHz, or 2.3 GHz.
It is possible to change this setting after a limit line has been entered. When changing from On to Off or vice-versa,
the frequency values in the limit line table change so that the limit line remains in the same position for the current
frequency settings of the test set.
Pressing this button makes Center Frequency the active function.
Relative to RL
Chooses whether the limit line amplitude points are coupled to the test set reference level, and whether the
amplitude points are expressed as an offset from the test set reference level.
For example, assume you have a limit line, and the reference level at –10 dBm. If Relative to RL is “Off”, entering
a limit line segment with an amplitude coordinate of –20 dB displays the limit line segment at –20 dBm, and the
limit line segment will not change amplitude if the reference level amplitude changes. If Relative to RL is “On”,
entering a limit line segment with an amplitude coordinate of –20 dB displays the limit line segment at RL – 20 dB,
or –30 dBm. Furthermore, if the reference level amplitude changes to –30 dBm, the limit line segment is displayed
at RL – 20 dB, or –50 dBm.
It is possible to change this setting after a limit line has been entered. When changing from On to Off or vice-versa,
the amplitude values in the limit line table change so that the limit line remains in the same position for the current
reference level settings of the test set.
Key Path Meas Setup, Limits, Properties, Fixed/Relative
Remote Command :CALCulate:LLINe[1]|2|3|4|5|6:FREQuency:CMODe:RELative
ON|OFF|1|0
:CALCulate:LLINe[1]|2|3|4|5|6:FREQuency:CMODe:RELative?
Example :CALC:LLIN:FREQ:CMOD:REL ON makes limit line 1 relative to the center
frequency.
Notes If the Trace Domain is changed to Time
(:CALCulate:LLINe:CONTrol:DOMain TIME), the SCPI command
:CALCulate:LLINe[1]|2|3|4|5|6:FREQuency:CMODe:RELative ON|OFF|1|0
will have no effect.
Couplings Pressing this button makes Center Frequency the active function.
Preset Off, not affected by Mode Preset, preset by Restore Mode Defaults.
State Saved Saved in instrument state.
Initial S/W Revision A.02.00
Key Path Meas Setup, Limits, Properties, Fixed/Relative
Remote Command :CALCulate:LLINe[1]|2|3|4|5|6:AMPLitude:CMODe:RELative
ON|OFF|1|0
:CALCulate:LLINe[1]|2|3|4|5|6:AMPLitude:CMODe:RELative?
Example :CALC:LLIN:AMPL:CMOD:REL ON makes limit line 1 relative to the
reference level amplitude.