Atec Agilent-8510C - Manual (Page 17)

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Thru-reflect-line (TRL): A two-port calibration which
requires a through connection, a reflection standard, and
a reference transmission line. S-parameter test sets only.
Line-reflect-match (LRM): A two-port calibration similar
to TRL except it uses fixed loads and not transmission
line(s) as its impedance reference. LRM is a particularly
convenient broadband calibration for non-coaxial environ-
ments with accuracy as good as TRL. S-parameter test
sets only.
Adapter removal calibration: A two-port calibration for
noninsertable devices, such as those with identical sexed
connectors on both ports. S-parameter test sets only.
Two-port to one-port calibration: Create and store a
separate one-port calibration set for either port 1 or port
2 from an existing two-port calibration.
Reference plane extension: Redefine the plane of mea-
surement reference (zero phase) to other than that estab-
lished at calibration. A new reference plane is defined in
seconds of delay from the test set port and ranges
between ±1 second.
Connector compensation: Compensates for errors
between dissimilar but matable connectors such as
3.5 mm and SMA.
Receiver cal: Adjusts non-ratioed receiver inputs to
absolute power levels; displays absolute power in dBm;
requires reference sweep of known source power (using
flatness correction).
Set Zo: Can redefine the characteristic impedance of a
measurement to other than 50
Ω.
Data averaging: Similar to a variable bandwidth IF filter,
this function computes the running average of either a
number of data traces in ramp mode or data points in
stepped mode. Averaging factors range from
1 to 4096 in powers of 2. In stepped sweep mode, each
data point is averaged before being displayed.
Trace smoothing: Similar to variable bandwidth video
filter, this function computes the moving average of adja-
cent data points in a single trace. Smoothing aperture
ranges from 0.125% to 20% of the trace width.
Data hardcopy
Data plotting: Hard copy plots are automatically
produced by the 8510C when used with an HP-GL com-
patible plotter using either the system bus (GPIB compat-
ible) or serial output interface (RS-232-C).
Plotter functions: Plot trace(s), graticule(s), marker(s),
or text with any plotter pen. Operating and system
parameters can also be plotted.
Formats: Full or quarter page plots of any parameter.
Plot all 4 S-parameters: Plots all four S-parameters in
4-quadrant format.
Plotter/printer buffer: Retain trace update of the 8510
while plotting/printing previous data via either of the two
serial output interface (RS-232-C) ports. Total buffer mem-
ory available is 400 Kbytes for serial output port 1 and
100 Kbytes for serial output port 2.
Data listings: For printing and plotting, the Agilent
8510C can send data, via either its GPIB
1 or its RS-232
interface, to the HP ThinkJet, QuietJet, DeskJet,
LaserJet, or PaintJet graphics printers. Measurement
data, operating parameters and system parameters can all
be printed or plotted.
Display control
Display type: Color (raster scan), 7.5” diagonal; display
graticule, 5.5” diagonal.
Title: Add custom titles (49 characters maximum) to the
display of the 8510C. Titles are plotted when making
hardcopies of displayed measurements.
Adjust display: Control the intensity and background
intensity of the display. Also, customize the color, tint,
and brightness of the data traces, memory traces, refer-
ence lines, graticules, text, and warning messages. Select
from 16 colors. Default colors can be recalled along with
one set of user-defined display values. Control is in the
percent of full range.
Limit lines: Define up to eight test limit segments per
parameter per channel; segments may be any combination
of flat lines, sloping lines, or discrete points; limit testing
gives pass/fail decision on each sweep.
CRT formats: Single channel, dual channel overlay (both
traces on one graticule), dual channel split (each trace on
separate graticules), four parameter overlay or split.
Trace functions
Display data: Display current measurement data, mem-
ory data, or current measurement and memory data
simultaneously.
Trace math: Vector math (+, –,
Ч, ч) of current linear
measurement values and memory data.
Scale resolution
Magnitude: Log format (dB/div): 0.001 to 500
Linear format (units/div): 10
×10
-12 to 500
Phase: Cartesian (degrees/div): 10 ×10 -12 to 500
Polar (degrees/display graticule): 45
Reference value: Ranges between ±500 units (dB, degrees,
seconds, etc.)
Reference position: Ranges from the 0 (bottom) to 10
(top) graticule position.
Auto: Automatically selects scale resolution and reference
value to center the trace on the CRT graticules for easy
viewing.
Electrical delay: Offset measured phase or group delay
data by a defined amount of electrical delay, in seconds.
Operates similar to an electronic line stretcher. Amount
of electrical delay can range between ±1 second. Electrical
delay can also be displayed in electrical length (meters)
or physical length by entering the appropriate VELOCITY
FACTOR, the propagation velocity relative to the speed
of light.
Waveguide delay: Non-linear electrical delay used to
remove the effects of dispersion in waveguide.
Table delay: Allows user to input an array or real and
imaginary pairs to correct for dispersion in non-coaxial
media such as microstrip or coplanar waveguide.
1. When printing/plotting from the 8510 system bus (GPIB compatible) port to a Centronics printer/plotter, use
an ITEL-45CHVU or ITEL-45CHVE HP-to-Centronics Converter.