ES User’s Guide 3-21
Making Measurements
Measuring S-Parameters using a Two-Port Calibration
NOTE By convention, cal kit labels in the analyzer indicate the sex of the port
with which they are used. For example, the default cal kit for the
analyzer is type-N female because the front panel RF ports are female
(the calibration standards, in turn, have male connectors).
Calibrating for Insertable Devices
When measuring a through-standard during calibration, the test ports
normally mate directly together. For example, two cables with the
appropriate connectors can be connected directly without a
through-adapter, resulting in a zero-length through-standard. An
insertable device is a device that can be inserted in place of a zero-length
through-standard. It has the same type of connector on each port, but
with a different sex, or the same type of sexless connector on each port
(APC-7, for example).
Cal Kit Model
Number
Impedance
Connector
Type
For Use
with Male
Test Ports
For Use
with Female
Test Ports
HP 85039B 75 Ω type-F ✓✓
HP 85036B 75 Ω type-N ✓✓
HP 85036E 75 Ω type-N ✓
HP 85032B 50 Ω type-N ✓✓
HP 85032E 50 Ω type-N ✓
HP 85031B 50 Ω APC-7 N/A N/A
HP 85033D 50 Ω 3.5 mm ✓✓
HP 85038A 50 Ω 7-16 ✓✓
HP 85038F 50 Ω 7-16 ✓
HP 85038M 50 Ω 7-16 ✓
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