Agilent Technologies EMC Series User Manual page 116

Front-Panel Key Reference
Marker
Pressing
NOTE
position, so you can make delta measurements from differing reference
points without having to turn off the markers and begin again.
The delta marker function permits signal-to-noise measurements
NOTE
provided the signal is a single spectral component (sinusoid). Place a
normal marker on the signal, press
noise, and activate
difference is signal-to-noise/Hz.
Enters a mode that allows adjustment of both the
Delta Pair
(stop) markers independently. Pressing
Ref Delta
reference and delta markers. The start marker number is indicated
with a number and an R above the marker (for example, 1R) and the
delta marker is indicated with a marker number. This mode is useful in
functions such as
Key Access:
Ref and Delta markers maintain their displayed x-axis location, but not
NOTE
their frequency values when you change a parameter that redefines the
x-axis scale. Reset these markers when parameters such as Span or
Center Freq are changed.
Enters a mode that allows adjustment of both the ref and delta
Span Pair
markers. Pressing
Span Center
markers. The start marker number is indicated with a number and an R
above the marker (for example, 1R) and the stop marker is indicated
with a marker number. Adjusting the span changes the frequency
difference between the two markers while maintaining the midpoint
between the two markers at a fixed frequency. Changing the center
changes the center point between the two markers while maintaining
the frequency difference. This mode is useful in functions such as
Band Power
Span Pair is not available when
NOTE
selected.
Key Access:
Turns off the marker that has been selected by the
Off
key.
signal track and demodulation. It also removes marker annotation from
the display.
Key Access:
116
again moves the reference marker to the active marker
Delta
Marker Noise
Band Power
Marker
Span Pair
.
Marker
also turns off functions related to the selected marker such as
Off
Marker
, place the delta marker in the
Delta
(see below). The indicated amplitude
Delta Pair
.
, toggles between the span and center
,
FREQUENCY Scale Type (Log)
(start) and
Ref Delta
, toggles between the
is
Select Marker 1 2 3 4
Chapter 2