Atec Rohde-Schwarz-ESPI_Series_DatasheetsЙ - Manual (Page 8)

8 Test Receiver ¸ESPI
Fit for the future
Owing to its modular design, the
¸ESPI is optimally equipped to
handle today’s measurements and the
measurements of the future. The design
already takes into account both hardware
and firmware extensions so that the
¸ESPI will meet all requirements in
the years to come as well. A safe invest-
ment for the future.
Ergonomics&design
The ¸ESPI sets the new standard in
the precompliance class. The 21 cm (8.4")
color display makes it easy for the user to
read results and provides an overview of
the parameters which have been
selected.
Vertical and horizontal rows of softkeys
make it easy to perform even complex
measurements. Parameters such as fre-
quency and amplitude are entered by
means of dedicated hardkeys and unit
keys.
Wide dynamic range
Featuring the lowest displayed average
noise level in its class (DANL typ.
–145 dBm at 10 Hz RBW), the ¸ESPI
measures even small signals precisely,
when using the optional Preselector/Pre-
amplifier ¸ESPI-B2 from 9 kHz to
3 GHz even down to –153 dBm (10 Hz
RBW). Together with the high intercept
point, this yields an intermodulation-free
range of typ. 100 dB – an excellent value
even for higher middle-end instruments.
Phase noise
The ¸ESPI’s minimal phase noise
makes it suitable for demanding mea-
surements both close to the carrier
(typ. –113 dBc (1 Hz) at 10 kHz) and far
from the carrier (typ. –125 dBc (1 Hz) at
1 MHz). The ¸ESPI is therefore opti-
mally equipped for performing spectral
analysis and ACPR measurements on nar-
rowband systems such as IS-136 or PDC
as well as on wideband systems such as
IS-95 or WCDMA.
Interior view: modular design of test receiver
The R&S ® ESPI comes as standard with a large variety of
functions
Displayed
average noise
level in receiver
mode with
preselector/
preamplifier
switched on