User`s guide
MK TRACK
ON OFF
moves the signal that is nearest to the active marker to the center of the
screen and keeps the signal there. MKR-TRK or CNTR-TRK appears in the
upper-right corner of the display. An
(*)
may appear in the upper-right corner
of the display while the spectrum analyzer is verifying that it has the correct
signal.
Pressing MK TRACK ON OFF ,
C-1,
MARKER NORMAL, or MARKER ALL OFF
turns off the marker-track function.
When marker track is on and the span is reduced, an automatic zoom is
performed: the span is reduced in steps so that the signal remains at the
center of the screen. If the span is zero, marker track cannot be activated.
Front-Panel Key Access:
[MKRFCTN)
accesses the marker control
softkeys
which select the type and number of
markers and turn them on and off. Markers are diamond-shaped characters
that identify points of traces and allow the traces to be manipulated and
controlled on the screen. During manual operation, four markers may appear
on the display simultaneously; only one can be controlled at a time. The
marker that is controlled is called the “active” marker. Pressing
IIV1KR)
activates
the MARKER NORMAL
softkey.
(read “marker to”) accesses the
softkeys
used for the transfer of marker
information directly into other functions.
fjtKE=g
accesses the marker function softkeys. These
softkeys
can be used to access
the marker table and to turn on marker functions for tracking the signal and
counting its frequency. Noise markers and the marker pause function are also
accessed under
C-1.
MNOPQR
(MODE)
accesses the
softkey
menu for selecting screen title or prefix characters
M through R.
Front-Panel Key Access: (CAL),
[CONFIG),
[DISPLAY),
[RECALL),
or
(SAVE_)
changes the
softkey
menus for the spectrum-analyzer mode and other
modes of operation when SPECTRUM ANALYZER (located under
[PRESET])
and
PRESET SPECTRUM are selected, respectively. Other modes are available using
the downloadable measurement personalities. The HP 8571
IA
cable television
measurements personality, the HP 85712D EM1 diagnostics measurements
personality, and the HP 85713A digital radio measurements personality are
examples of some of these modes. Others are described in “Measurement
Personalities, Options, and Accessories.” Consult the documentation
accompanying each personality for information about these other modes of
operation.
Key Descriptions 7-57