Agilent Technologies ESA Series User's/Programmer's Reference page 69

Core spectrum analyzer functions
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Off
View
QP/Avg Gain
Range Dwell
Accesses the menu keys to select
Demod
demodulation
Off,
Key Access:
Chapter 2
sample detection.
Key Access:
Turning EMI detectors off restores the amplitude
reference level and scale type (logarithmic or linear)
that was used prior to the selection of either the
quasi-peak or average detector. It also turns off any
special ranging and grays out the
keys.
Key Access:
Selects between peak detection and quasi-peak/EMI
average detection, without changing the ranging which
adjusts the reference level. This allows you to use peak
detection while maintaining the current EMI
measurement view/settings. This function is not
available unless you have selected either
EMI Average
When Pk is selected, the peak detector is used and the
quasi peak and EMI average detectors are bypassed.
When QP/Avg is selected the quasi peak or EMI average
detector is used and the analyzer is forced to linear
amplitude detection mode using sample detection.
Key Access:
Turns on or off the linear × 10 gain stage in the
quasi-peak and average detector signal path. This stage
may be enabled/disabled whenever the quasi-peak or
EMI average detector is first selected.
Key Access:
Sets the auto-range dwell time for the EMI Detectors.
The amplitude ranging process optimizes the available
dynamic range for the measurement. The dwell time is
the time spent auto-ranging. You may need to set this
value if you have a signal with a very low PRF (< 5Hz).
Dwell time must be > 1/PRF.
Key Access:
. It also accesses the
Off
and
menu keys described below.
Demod Time
Det/Demod
Det/Demod, EMI Detector
Det/Demod, EMI Detector
.
Det/Demod, EMI Detector
Det/Demod, EMI Detector
Det/Demod, EMI Detector
demodulation,
AM
Demod View On Off
Front-Panel Key Reference
Det/Demod
and
View
QP/Avg Gain
or
Quasi Peak
demodulation or
FM
,
Speaker On
69

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