R&S esu, Quick Start Manual, Page: 38 / 223

R&S ESU Front and Rear Panel
Front Panel Connections
1.6 Quick Start Guide 1302.6163.62 - 04
1.3 Front Panel Connections
This section describes the front connectors and interfaces of the R&S ESU. Optional
connectors and interfaces are indicated by the option name in brackets.
RF INPUT 50
Ω
1/2
The RF input 1 (20 Hz ... f
max
) is to be connected to the DUT via a cable equipped with a male
N connector (R&S ESU8) or with a male PC3.5/K (R&S ESU26/40). Be sure not to overload
the input. The maximum continuous power at the RF input is +30 dBm (1 W).
The RF input 2 (20 Hz ... 1 GHz) is to be connected to the DUT via a cable equipped with a
male N connector. Be sure not to overload the input. The RF input 2 is pulse protected, the
maximum continuous power is +30 dBm (1 W).
Tracking Generator Output (GEN OUTPUT 50
Ω
, Option R&S FSU-B9)
The output of the tracking generator is to be connected to the DUT via a cable equipped with
a male N connector.
The female connector is available only with the tracking generator option (R&S FSU-B9).
AF OUTPUT
Headphones equipped with a miniature jack plug can be connected at the AF OUTPUT female
connector.
The internal impedance is 10
Ω
. The output voltage can be set by using the volume control to
the left of the female connector. If a plug is connected, the internal loudspeaker will
automatically be switched off.
Both RF inputs of the R&S ESU are selectable AC- or DC-coupled.
For AC-coupling, a DC input voltage of 50 V must never be exceeded. For DC-coupling,
DC voltage must not be applied at the input.
In both cases, noncompliance will destroy the input mixers.
In the case of DUTs with sensitive HF characteristics with regard to
matching (VSWR) at the input, insert a 20 dB attenuator between the
DUT and the tracking generator.