130 Chapter 6
Calibration
Selecting Appropriate Calibration Method
Selecting Appropriate Calibration Method
The Agilent 4294A has three calibration types: user calibration, port extension
compensation, and fixture compensation. Table 6-1 shows each device connection and its
corresponding adapter selection and calibration. Calibration should be done according to
the particular requirements of each device connection. See “Adapter Setting” on page 67
for adapter selection.
Table 6-1 Device Connection and Corresponding Adapter Selection and Calibration
Device Connection
Adapter
Selection
Accessory
Calibration (Ö: required, blank: not required)
User
Calibration
Port Extension
Compensation
Fixture
Compensation
A. Connect a direct connection
type test fixture to the
four-terminal pair port of the
4294A and connect the device
to the fixture.
No adapter
(
NONE)
16034E
16034H
16044A
16047A
16047C
16047D
16047E
16065A
1
16089A
1
16089B
1
16089C
1
16089D
1
16089E
1
Open/Short
16034G Open/Short/ Load
(Load comp. is
required when the
frequency is more
than 3 MHz)
16314A Open/Short/Load
B. Extend the four-terminal
pair port of the 4294A with a
1-meter-long four-terminal pair
configuration and connect the
device.
Four-terminal
pair, 1 meter
(
4TP 1M)
16048G and test fixture Same as the fixtures
are directly
connected to the
four-terminal pair
port
16048G and 16452A Short
16334A
16451B
Open/Short
C. Extend the four-terminal
pair port of the 4294A with a
2-meter-long four-terminal pair
configuration and connect the
device.
Four-terminal
pair, 2 meters
(
4TP 2M)
16048H and test fixture Same as the fixtures
are directly
connected to the
four-terminal pair
port
16048H and 16452A Short
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