Programming with GPIB Commands 2-7 Frequency Marker Commands
MG369xC GPIB PM PN: 10370-10374 Rev. F 2-19
2-7 Frequency Marker Commands
Table 2-7 lists the frequency marker command mnemonic codes. These commands provide for (1) selecting a
CW frequency as a potential marker, (2) selecting a potential marker as an active marker, and (3) individually
turning markers on and off.
The ME1 command will enable a marker at the current frequency that is open for update; the ME0 command
will disable the same marker. If a frequency parameter is not open, no action will be taken. The VM1 command
will turn on video markers. The MK0 command will turn all markers off. Figure 2-6 shows an example of a
frequency marker command string.
Programming Note:
Only one marker mode can be active. Consequently, if the intensity marker mode is active and the video
marker mode is programmed, the displayed markers will change to video markers. Either mode can be turned
off with the MK0 command.
Table 2-7. Frequency Marker Commands
Mnemonic Code Function
IM1 Turns on the Intensity marker mode.
ME0 Disables the marker at the active frequency.
ME1 Enables a marker at the active frequency.
MKO Turns off markers.
MPN Sets the rear panel marker polarity negative.
MPP Sets the rear panel marker polarity positive.
VM1 Turns on the video marker mode.
Figure 2-6. Example of a Frequency Marker Command String
VM1
Turns on the video-marker mode.
Disables the F1 frequency marker.
Enables the F7 frequency marker.
Enables the F4 frequency marker.
Turns both markers off, but leaves the F7 and F4 markers enabled.
Therefore, when VM1 is next programmed, two frequency markers
will reappear on the display, provided their frequencies are within the
MG369xC’s sweep range.
F1 ME0 F7 ME1 F4 ME1 MK0
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