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Measurement
Number of display channels
Four display channels available.
Number of measurement channels
Two primary and two auxiliary measurement
channels available.
Measurement parameters
8753ET: Reflection, transmission, A, B, R, A/R,
B/R, A/B. Conversion to impedance or admittance.
8753ES: S11, S21, S12, S22, A, B, R, A/R, B/R, A/B.
Conversion to impedance or admittance.
Formats
Cartesian: log/linear magnitude, phase, group
delay, SWR, real and imaginary.
Smith chart: with log/linear amplitude and phase,
R + jX, G + jB, or real/imaginary markers.
Polar: with linear/log amplitude, phase, or real and
imaginary markers.
Data markers
Each display channel has five independent markers
that can be displayed simultaneously. Twenty inde-
pendent markers can be displayed in 4-channel
display mode when markers are uncoupled.
Marker functions
Markers can be used in various functions: Marker
search (Mkr to max, Mkr to min, Mkr to target),
Mkr bandwidth with user-defined target values,
Mkr to start, Mkr to stop, Mkr to center, Mkr to
span, Mkr to reference, Mkr to delay, and trace sta-
tistics (average value, standard deviation, and peak-
to-peak deviation of the data trace between two
markers). The tracking function enables continuous
update of marker search values on each sweep.
Group Delay Characteristics
Aperture: selectable
Maximum aperture: 20% of frequency span
Minimum aperture: (freq. span) / (number of
points +1)
Range
The maximum delay is limited to measuring no
more than 180° of phase change within the mini-
mum aperture. Range = 1/(2 x minimum aperture)
Accuracy
The following graph shows group-delay accuracy
at 1.3 GHz with type-N full two-port calibration
and 10-Hz IF bandwidth. Insertion loss is assumed
to be <2 dB and electrical length to be ten meters.
Source Control
Sweep limits
Set start/stop or center/span of the stimulus
parameter (frequency, power, time) directly
through the source control keys and the control
knob, the step keys or the data entry keyboard.
Sweep type
Set a linear or logarithmic sweep, an arbitrarily
defined frequency list, a power sweep or a CW
(single frequency) type of sweep.
Measured number of points per sweep
Linear frequency: choose 3, 11, 26, 51, 101, 201,
401, 801, or 1601 points.
Fast swept list
Define up to 30 different sub-sweep frequency
ranges in any combination of CW, center/span, or
start-stop sweep modes. Set test-port power levels
and IF bandwidth independently for each segment.
Sweep modes
Set a coupled channel sweep (same stimulus conditions
on both channels) or an uncoupled channel sweep.
Chop/alternate
Select whether to alternately or simultaneously
(chop) measure channels when in dual-channel
mode. Chop mode is faster, while alternate mode
optimizes dynamic range.
Sweep time
Set sweep time in seconds, minutes, or hours.
Automatic sweep time
Select auto sweep time by entering zero seconds
sweep time. The analyzer will sweep at the minimum
sweep time for any subsequently selected stimulus
conditions. Auto sweep time is the default condition.
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Agilent 8753ET/ES Supplemental Characteristics