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

MF
Marker Frequency Output
Returns the frequency (or time) of the on-screen active marker.
Syntax
Related Commands: MA, MKA, MKCF, MKD, MKF, MKN, MKPK, MKREAD.
Example
Connect CAL OUT to the spectrum analyzer input.
MF’ Marker Frequency Output
OUTPUT 718;"IP;SNGLS;" Initializes the spectrum analy~ activates singlesweep
mode.
OUTPUT 718;"FA 280MHZ;FB 320MHZ;TS;" Sets up the measurement range.
OUTPUT 718;"MKN;MKPK HI;" Places marker on peak of calibrator signal.
OUTPUT 718;"MF;" Rzkesfrequency of marker:
ENTER 718;A Returns frequency to the computer:
PRINT A Prints the frequency on the computer screen.
Description
The MF command returns the frequency of the active marker to the controller if the marker
is on screen. In delta marker mode, nonzero span, “MF;” returns the frequency difference
between the two markers. In zero span, “MF;” returns the marker time, or the delta marker
time.
The data that is returned by “MF;” depends on many command conditions including TDF,
MKREAD, and MDS.
If the trace data format P is used with MF, the result is one real value in time units or
frequency units, depending on the marker readout format. (See “MKREAD.“)
Example 1
OUTPUT 718;"TDF P;MKREAD FRCj;MF;" This returns a frequency value (in Hz) if not in
zero-span.
OUTPUT 718;"TDF P;MKREAD FRQ;MF;" This returns a time value (in seconds) if in zerospan.
OUTPUT 718;"TDF P;MKREAD PER;MF;" This returns the time value (in seconds) of l/(marker
frequency).
OUTPUT 718;"TDF P;MKREAD SWT;MF;" This returns the marker time value (in seconds).
OUTPUT 718;"TDF P;MKREAD 1ST;MF;" This returns thefrequency value (in Hz)for l/(marker
time).
OUTPUT 718;"TDF P;MKREAD FFT;MF;" This returns the frequency value (in Hz).
If the trace data format is used with trace data format A, the result depends on the setting of
the MDS command.
XMF
Programming Commands 5-317