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Preparing the Analyzer for Use
R&S
®
ZVA80
10
Quick Start Guide 1312.6808.62 ─ 02
Maximum input level, mechanical damage
Do not exceed the maximum input level at the test port according to the data sheet,
especially when using active DUTs or external amplifiers.
To avoid mechanical damage when connecting devices to the 1 mm connector, always
use the torque wrench supplied with the R&S ZVA80.
2.3.2 H/L SWITCH Connector
The H/L SWITCH connectors on the top side of each diplexer are input connectors for
the control signals from the USER CONTROL connector on the rear panel of the R&S
ZVA80 base unit; see
chapter 2.5.4, "Connecting the Control Cable"
2.3.3 Rear Panel
The rear panel of the diplexer provides input and output connectors for RF signals and a
DC input. Connectors labeled LOW are used in low frequency mode only; see
"Operation with External Test Sets"
Fig. 2-2: Rear panel of the diplexer
●
MEAS OUT LOW is a 1.85 mm (V) female connector which provides the measured
signal (b wave) in low frequency mode.
●
RF IN LOW / HIGH is a 1.85 mm (V) female connector which receives the RF source
signal from the R&S ZVA80 base unit. This connector is used in low frequency and
in high frequency mode.
●
REF OUT LOW is a 1.85 mm (V) female connector which provides the reference
signal (a wave) in low frequency mode.
●
BIAS is a BNC connector which serves as a DC bias input for the external test set.
The BIAS input is protected by an exchangeable fuse; see
MEAS OUT, RF IN, and REF OUT are connected to the corresponding 1.85 mm con-
nectors of PORT 1 / 2 at the R&S ZVA80 base unit. The complete RF connection of the
external test set is described in
chapter 2.5.5, "Connecting RF Cables"
Diplexer Connectors