252 Chapter4
Key Function Descriptions
Key Descriptions
The impulsive part of the power is
found by the power difference between
an ungated measurement and the
gated measurement. This method
supports TIA/EIA IS-54 NADC-TDMA
measurements.
Front-panel key access:
MEAS/USER
MKR Accesses a menu of softkeys: MARKER NORMAL,
MARKER DELTA, MARKER 1/DELTA, MKRNOISE
ON OFF, SIG TRK ON OFF, and MARKERS OFF.
MKR
also activates the current marker mode (such as
MARKER DELTA); if no mode is active,
MKR activates
MARKER NORMAL.
Front-panel key access: MKR
MKR→ Accesses four different menus of marker functions. The
menu that is accessed depends on the frequency span of
the spectrum analyzer and if the marker is in the
normal mode or the delta mode.
These marker functions allow the user to use the
marker as a reference for changing analyzer settings.
Front-panel key access:
MKR→
MKR ∆→CF Sets the center frequency of the spectrum analyzer
equal to the delta frequency value. Once activated, both
the anchor marker and the active marker are
positioned at the new center frequency.
Span > 0 Hz Zero Span
Normal Marker Mode
MARKER → CF —
MARKER → REF LVL MARKER → REF LVL
MARKER → CF STEP
—
Delta Marker Mode
MKR ∆→ CF MKR 1/∆→ CF
——
MKR ∆→ CF STEP MKR 1/∆→ CF STEP
MKR ∆→ SPAN
—
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