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

ZMKCNTR
Zone Marker at Center Frequency
Positions the zone marker at the specified frequency.
Syntax
ZMKCNTR Zone Marker at Center Frequency
zone m a r k e r f r e q u e n c y
Item Description/Default Range
HZ
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XZMKCNTR
Number Any real or integer number. Default unit is Hz. Frequency range of
the spectrum analyzer.
Equivalent Softkey (HP 85913, HP 85933, HP 85943, HP 85953, or HP 85963 only):
ZONE CENTER .
Default value: If a marker is on-screen, the frequency value of the marker. If a marker is
not on-screen, the spectrum analyzer center frequency.
Related Commands: CF, SP, WINON, ZMKSPAN.
Example
OUTPUT 718;"WINON;" Turns on the windows display m&e.
OUTPUT 718;"ZMKCNTR 300MHZ;" Places the zone marker at 300 MHz
Description
ZMKCNTR allows you to move the zone marker within the frequency range displayed in the
upper window. When the lower window is the active window, changing the center frequency
(CF) or frequency span (SP) of the lower window changes the position of zone marker in the
upper window.
Restrictions: Use ZMKCNTR only if the window is in non-zero span; ZMKCNTR does not apply
if the window is in the time domain. The zone marker can be moved beyond the frequency
range displayed by the upper window (the zone marker cannot exceed the frequency range of
the spectrum analyzer, however.) ZMKCNTR should only be used when the windows display
mode is turned on.
You can use ZMKSPAN to change the span of the zone marker.
Programming Commands 5-599