R&S ZVA80, Быстрый старт

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Preparing the Analyzer for Use
R&S
®
ZVA80
14 Quick Start Guide 1312.6808.62 ─ 02
Risk of instrument damage
The input voltage and current must not exceed the maximum values according to the rear
panel labeling or the data sheet.
Always use the DC power supply included in the delivery to power your frequency con-
verter.
2.4.3.3 Fuse Holder
A fuse of type IEC60127 T1 L/H protects the frequency converter from excess input vol-
tages at the power supply connector. The diplexer is protected by a fuse of different type;
see
chapter 2.3.4, "Fuse Holder" , on page 11.
For fuse replacement see chapter 2.5.9, "Replacing Fuses" , on page 21.
2.4.3.4 RF Connectors – Input
Two 3.5 mm input connectors:
●
RF IN receives the RF source signal from the diplexer. A semi-rigid cable connects
RF IN to the RF HIGH OUT connector on the top side of the diplexer.
●
LO IN receives the local oscillator signal from the R&S ZVA80 base unit.
Both input connectors are only used in high frequency mode. The complete RF connec-
tion of the external test set is described in
chapter 2.5.5, "Connecting RF Cables" ,
on page 17.
Risk of instrument damage
The RF input power at the connectors RF IN and LO IN must not exceed the maximum
values quoted in the data sheet. The maximum values are below the maximum RF source
power of the network analyzer. The "ZVA80-BU" mode ensures compatible source pow-
ers.
Before you connect your external test set to the network analyzer, always activate the
"ZVA80-BU" mode using the "Frequency Converter" dialog (see
chapter 3.3, "Activating
the ZVA80-BU Measurement Mode" , on page 23).
Frequency Converter Connectors