Receiver Mode
R&S
®
ESR
173
User Manual 1175.7068.02 ─ 12
The R&S
ESR demodulates the signal on the receiver frequency in a bandwidth corre-
sponding to the resolution bandwidth to the audio output.
A squelch function that is linked to the video trigger defines the level that the signal
must at least have to be demodulated. If you turn the squelch on, the R&S
ESR auto-
matically turns on the video trigger. The squelch level and trigger level are the same.
5.2.5
V-Networks Control (LISN)
For measurements with power lines, the R&S
ESR provides functionality to directly
control a line impedance stabilization network (LISN). The configuration is then taken
into account in the scan and final measurement.
You can connect the LISN with an adapter (R&S
EZ-27, order no. 1142.8271.02) to the
userport that controls the phases during the scan and the final measurement. The
R&S
ESR supports several V-networks.
●
Four-line V-networks
–
R&S ESH2-Z5
–
R&S ENV4200
–
R&S ENV432
●
Two-line V-networks
–
R&S ESH3-Z5
–
R&S ENV216
For the R&S ENV216 network, a 150
kHz high pass filter is available for protection of
the input.
After selecting the type of network, you can define the phase you want to test for inter-
ferences. Phase N and L1 are available for two-line networks. Four-line networks in
addition have access to phase L2 and L3.
●
During scans, you can control several phases simultaneously.
●
During final measurements the R&S
ESR supports the control of several phases.
When you select more than one phase, the R&S
ESR measures all phase combi-
nations and determines the maximum value.
For an automatic phase selection with the networks, a connection between the
R&S
ESR and network has to be established with a control line. To connect the control
line to the R&S
ESR, adapter R&S
EZ-27 is required. The following illustrations show
the right PIN assignment.
14
N
N
46
15
L1
L1
21
16
22
17
23
12
GND
GND
50
18
PE fl
PE fl
47
L2
L3
L2
L3
13
+5 V
+5 V
48
ESH2-Z5
Pin
Filter
Adapter Pin
(9-pol
25-pol)
2
6
7
4
8
3
1
R&S Receiver
Pin
Figure 5-5: Connection from R&S
ESR to R&S ESH2-Z5
Measurement Basics
