Atec Rohde-Schwarz-ESPI_Series_DatasheetsЙ - Manual (Page 11)

Test Receiver ¸ESPI 11
To measure the coverage field strength of
a communications or broadcast network,
continuous level measurements have to
be performed at a high measurement rate
and the results must be forwarded to an
evaluation unit.
When a displacement sensor/GPS system
is used, the external trigger input of the
¸ESPI can be used to start the single
measurements. The level values can thus
be accurately assigned to the measure-
ment site.
The coverage measurement function is
only available in the receive mode and in
the case of remote control. The ¸ESPI
performs the coverage measurement in
two different ways:
◆
All measurements are performed on a
discrete frequency
(sample rate >100 ksample/s)
◆
A channel list with up to 1000 chan-
nels is cyclically processed, i.e. a new
frequency is set for each measure-
ment
Additional channel filters
In addition to the channel filters included
as standard in the ¸ESPI, the option
provides filters with bandwidths of
5.6 MHz to 8 MHz for DVB-T signals as
listed below:
◆
5.6 MHz: ISDB-T (Japan)
◆
6.0 MHz: ATSC (USA, Korea)
◆
6.4 MHz
◆ 7.0 MHz: DVB-T (Europe, Australia)
◆ 8.0 MHz: DVB-T (Europe)
Lab model or robust portable
unit
Whether as a desktop model for the lab,
in a 19" rack, or as a robust unit with edge
protectors and carrying handle for
portable use – the ¸ESPI always
looks good.
R&S ® ESPI-K50 – external trigger for measuring field-strength profiles
Environmental compatibility
◆ Fast and easy disassembly
◆
Small number of materials
◆
Mutual compatibility of materials
◆
Easy identification of substances
through appropriate marking
(plastics)