Agilent Technologies 8510C, Руководство по эксплуатации и программированию

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Netw ork Analyzer System Description
F or the reection/transmission test sets, when connecting the DUT directly to p ort 1, use
the short extension lines. On these test sets, the Extension B line is in the test signal path,
making it p ossible to add bias tees, step or xed attenuators, ampliers, isolators, or other
signal-conditioning devices.
F or the S-parameter test sets, when using a standard test setup with the DUT connected at
the ends of the equal length test p ort extension cables, use the long rear panel extension lines.
When connecting the DUT directly at p ort 1 and using a single transmission return cable, use
the short extension line on Extension B.
Y ou may observ e the relativ e signal path length b y observing the uncorrected phase resp onse
of the short circuit and the thru connections. If non-standard test p ort extension cables are
used, the Extension Lines may b e c hanged to other lengths of high qualit y cable (lo w insertion
loss, high return loss, stable in use) in order to balance electrical lengths.
Adapters (T o Protect T est P orts from W ear)
T o preserv e the p ort connectors on the test set, a v oid connecting an y device under test
directly to the test set p orts. Alwa ys use a high quality adapter or cable as a \connector
sa v er" to a v oid damage and w ear to the cable connector. Use only high-quality adapters suc h
as those supplied in the Agilent calibration kits. Connect an appropriate cable to the test set
p ort, then connect an adapter that mates to the device under test to the end of this cable.
Proper Connector Care and Use
Keep all connector mating surfaces clean, insp ect all connectors visually b efore ev ery use, and
use connector gages to v erify that the mating tolerances are within sp ecications. Alwa ys
use a calibrated torque wrenc h, set to the correct torque, when tightening or removing
connections.
Calibration Kits
Use only the highest quality calibration standards: devices that ha v e a kno wn resp onse and
are stable in use. Only calibration devices that ha v e an accuracy equal to or greater than
those in HP calibration kits can pro vide the calibration and error correction accuracy needed
to ac hiev e full, sp ecied measuremen t accuracy with the 8510 net w ork analyzer system.
Also b e a w are that calibration standards, like all devices, can b ecome w orn and unstable
with use. When a calibration device is no longer stable and rep eatable, or if it sho ws signs of
connector damage or w ear, replace it. Detailed handling and storage instructions app ear in
the calibration kit op erating and service man uals.
A t ypical calibration kit con tains a shielded op en circuit, a short circuit, xed and sliding
loads, a connector gage, gage calibration blo c ks and aligning pins, extra precision 6-slot
cen ter collets, a cen ter collet extractor, a connector torque wrenc h, and a calibration kit
denition data cartridge. The calibration kit denition data cartridge con tains the nominal
c haracteristics for eac h of the calibration devices in the kit.
If y ou use other than a standard Agilent calibration kit, y ou can dene the standard's nominal
c haracteristics from the analyzer fron t panel using the
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MODIFY CAL SET feature explained
\Mo difying A Calibration Set," at then end of Chapter 8. After y ou dene the calibration kit
standards, y ou can store the data on disc and reload the data as required.
Principles of Operation 3-13