R&S ZVAX-TRM, User Manual

Page: 13 / 32

Preparing the Extension Unit for Use
R&S
®
ZVAX-TRM
13 User Manual 1325.1268.02 ─ 04
3 Preparing the Extension Unit for Use
This chapter covers the following topics:
● Safety Instructions ...................................................................................................13
● Front Panel Tour ..................................................................................................... 14
● Rear Panel Tour ......................................................................................................16
● Putting the Extension Unit into Operation ............................................................... 18
● Maintenance ............................................................................................................24
● Storing and Packing ................................................................................................25
3.1 Safety Instructions
The extension unit R&S ZVAX-TRM has been designed and tested in accordance with
the EC Certificate of Conformity and has left the manufacturer’s plant in a condition
fully complying with safety standards.
General safety instructions
To maintain this condition and to ensure safe operation, you must observe all instruc-
tions and warnings given in this manual.
Maximum Power Levels
The extension unit is intended to be operated with an R&S ZVA or R&S ZVT vector
network analyzer (NWA). With regard to the RF power ranges of the extension unit and
the network analyzer, there is no risk of damage as long as there are
no external
amplifiers or other active devices looped into the RF paths.
External amplifiers or other active devices may be used to increase the RF power
level, as long as the maximum RF powers of the extension unit and the NWA
–
as quo-
ted in the data sheets
–
are not exceeded. However, be aware that the power handling
capability quoted in the data sheets refers to the couplers only. In order to prevent
damage to other components of the extension unit and/or the NWA, the use of external
attenuators and/or isolators may be required.
Moreover, observe that the RF signal fed into the extension unit or the NWA must not
contain a DC offset, as this may impair the measurements and even cause damage to
the extension unit or the NWA.
RF Connection
Always connect the extension unit as described in Chapter 3.4.5, "Connecting the
extension unit to the R&S ZVA/ZVT" , on page 22. The analyzer firmware expects a
1:1 connection between the ports of the NWA and the ports/paths of the extension unit
(1↔1, 2↔2, ...).
Safety Instructions