Atec Rohde-Schwarz-ESPI_Series_DatasheetsЙ - Manual (Page 7)

Test Receiver ¸ESPI 7
R&S ® ESPI – the optimal bal-
ance of price and performance
◆ Large 21 cm display with brilliant
colors which makes it easy to read pa-
rameters and displays results clearly
◆ Seven different detectors including
average detector with meter time
constant (CISPR Average) and RMS
average detector, up to three of them
can be selected simultaneously
◆
EMI bandwidths 200 Hz, 9 kHz,
120 kHz and 1 MHz
◆ Resolution bandwidths from 10 Hz
to 10 MHz
◆ Editable limit lines
◆ Correction tables for transducers,
coupling networks, accessories,
antennas
◆ Convenient documentation of results
as a hardcopy or file in PC-compatible
formats
◆ Interfaces: GPIB, Centronics,
RS-232-C, LAN (option)
◆ Automatic test routines for measure-
ment of TOI, OBW, phase noise,
ACP(R)
◆ Split-screen display with independent
settings and up to 3 traces per screen
◆ Fast measurements in the time
domain: minimum sweep time 1 µs
◆ Gated sweep for measurements on
TDMA signals
◆ Minimum sweep time of 2.5 ms,
supports daily efforts in the lab to cut
development times
Additional applications –
extra performance
Modern communications systems are
required to achieve optimum spectral
efficiency at high data rates. For the 3rd
generation CDMA mobile radio systems
currently under development, this is
achieved by a number of measures, for
example high-precision power control.
The ¸ESPI is the ideal measurement
tool for diagnostic measurements,
development, precertification and post-
certification owing to its excellent RF
characteristics:
◆
Total measurement uncertainty
– Spectrum analyzer mode: 0.5 dB
(without preselection)
– Receiver mode: <1.5 dB
◆ Displayed average noise level of
typ. –155 dBm (1 Hz) without
preamplifier
◆ Phase noise of typ. –145 dBc (1 Hz) at
an offset of 10 MHz providing opti-
mum conditions for ACPR mea-
surements on WCDMA systems
The resolution bandwidths of up to
100 kHz are fully digital and provide –
in addition to high selectivity – an ideal
basis for accurate (adjacent-)channel
power measurements owing to a
maximum bandwidth deviation of 3 %.
Overview of limit lines