HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

MKA
Marker Amplitude
MKA Marker Amplitude
Specifies the amplitude of the active marker in the current amplitude units when marker type
is of fixed or amplitude type. When queried, MKA returns the marker amplitude independent
of marker type.
Syntax
MKA
ompl i tude
Item Description/Default R-fxe
Number Any real or integer number. Unit is current amplitude type. Amplitude range of
spectrum analyzer.
Step Increment: by 1 dB.
Related Commands: AUNITS, AUTO, MA, MKD, MKN, MKTYPE, TDF.
Example
OUTPUT 718*"IP*"
Initializes the spectrum analyzex
OUTPUT 718;"MK;YPE AMP;" Changes the marker type to amplitude.
OUTPUT 718;"MKA -50;" Places the marker at -50 dBm.
Description
The MKA command specifies the amplitude of the active marker in current units when the
marker is the fixed or amplitude type (see “MKTYPE”). If both the delta marker and active
marker are on the screen, “MKA?;” returns the amplitude difference between the two markers.
Specifying the marker amplitude moves the marker to the point of the trace closest to the
given marker amplitude.
If the trace data format P (TDF P), is used with MKA, the result is one real value in the current
amplitude units (AUNITS can be used to change the current amplitude units).
XMKA
Programming Commands 5-325