Agilent Technologies 8510XF Operating And Service Manual page 22

Introduction
System Description
Coaxial Configuration
When the 8510XF is configured for measurement through coaxial
connections, the network analyzer, the millimeter-wave controller, and the
RF and LO sources are all installed in the rack. The test heads are placed on
a work surface which is mounted below the millimeter-wave controller.
The test ports feature 1.0 mm coaxial connectors. The device under test is
typically connected to one test port directly, and to the other test port by way
of a coaxial cable (or it is connected to the ports through two coaxial cables).
Figure 1-2 8510XF, Configured for Coaxial Measurement
1-6 8510XF Network Analyzer Systems