Atec Rohde-Schwarz-ESPI_Series_DatasheetsЙ - Manual (Page 3)

Test Receiver ¸ESPI 3
EMC-relevant
performance features
◆ Total measurement uncertainty
– Spectrum analyzer mode: 0.5 dB
(without preselection)
– Receiver mode: <1.5 dB
◆
Displayed average noise level (DANL):
–155 dBm
(1 Hz), f < 1 GHz
◆ Noise figure 21.5 dB
(12 dB with preamplifier option)
◆ Overview measurements in spectrum
analyzer mode
◆ User-programmable scan tables
...the standard in the EMI precompliance class
9 kHz 3 GHz 7 GHz
¸ESPI 3
¸ESPI 7
Precompliance has a name: R&S ® ESPI3 and R&S ® ESPI7
Features
The ¸ESPI 3 and ¸ESPI 7,
which are suitable for all commercial EMI
standards in line with CISPR, EN, ETS,
FCC, ANSI C63.4, VCCI and VDE, have
been specially designed for precompli-
ance measurements in development. The
aim is to perform EMC diagnostic mea-
surements on the devices under test as
quickly as possible and as accurately as
necessary and to document the results.
The final compliance test will then be
purely a formality. The advantages of test
receiver accuracy and selectivity com-
bined with the measurement speed of a
spectrum analyzer define the crucial per-
formance features for a new class of test
receivers.
¸ESPI 3: 9 kHz to 3 GHz
¸ESPI 7: 9 kHz to 7 GHz
These two models make it possible to
take products through the critical stages
of development and the EMC test plan
and still be on schedule for approval and
market launch.
The precompliance measuring instru-
ments from Rohde & Schwarz provide the
functions that are required for in-house
test sequences:
◆ Manual measurement of EMI spectra
owing to the receiver-oriented
operating concept
◆
Semi-automatic measurements with
predefined scan and sweep tables
allowing interactive interruption
◆ Individual evaluation of critical fre-
quencies using markers and addition-
al detectors assigned to the markers
which are simultaneously displayed
◆ Fully automatic interference measure-
ments in conjunction with external
EMI software packages from
Rohde & Schwarz, including, for in-
stance, determination of the worst
case by automatic switchover of the
phase and protective ground settings
via the USER port for remote-con-
trolled line impedance stabilization
networks
◆ Display of results and comparison
with standard-conforming limit lines
◆ Correction values for cable loss,
coupling networks and antennas
included as transducer factor
◆
Data reduction and modification of a
frequency list for weighted final mea-
surement
◆ Bargraph display for different types of
detectors
◆ Overload indication
◆ Built-in AF demodulator
◆ EMI bandwidths in line with CISPR
◆ Brilliant 21 cm TFT color display