The new R&S®ETC compact TV analyzer offers the full range of
measurement functions required for quality testing of digital ISDB-T, DVB-T and
DVB-T2 transmitters. Network operators will benefit from this high-precision,
compact and easy-to-use instrument that offers the best price/performance ratio
in its class.
The R&S®ETC mid-range, multistandard TV analyzer supports
the ISDB-T, DVB-T and DVB-T2 digital terrestrial standards. It provides network
operators with a convenient, cost-effective solution for testing their
transmitters during commissioning, maintenance and servicing. The R&S®ETC
is ideal for this task – offering a wide range of functions including spectrum
analysis, TV analysis, scalar network analysis and power measurement in a
single instrument. It can also be used for network coverage measurements, such
as during drive tests. The extremely compact R&S®ETC with only three height
units and a width of ½ 19" offers an optimal price/performance ratio.
The compact TV analyzer fully supports the DVB-T2 single and multiple
PLP transmission modes. It provides a detailed display of constellation
diagrams, channel impulse response, shoulder distance of the OFDM spectrum and
MER(k) (modulation error ratio versus OFDM carriers). The R&S®ETC has an
integrated preselection and preamplifier. This increases both dynamic range and
sensitivity, so that even weak signals received over the air can be measured.
Connecting an external power sensor turns the R&S®ETC into a high-precision
RF power meter.
The core component of the R&S®ETC is an FPGA-based demodulator,
which demodulates the received signal in realtime and helps to achieve high
measurement accuracy. Featuring high measurement speed, the analyzer reliably
detects even short-term interfering signals that occur at irregular intervals.
Realtime demodulation allows continuous measurement of the bit error ratio (BER)
of the received signal. The decoded transport stream is available at the
analyzer’s ASI output for further processing, for example to display TV
pictures.
The R&S®ETC offers high operating convenience. It is controlled via
a keypad and a rotary knob. Frequently used functions are assigned to hardkeys.
Users can save all settings for a given measurement task as a measurement
profile, which can be recalled as necessary. This saves time and helps to
prevent operator errors by reducing the number of manual entries to be made.
For coverage measurements, the characteristic of the test antenna must be taken
into account. Transducer factors for a given test antenna can be saved in the
R&S®ETC. They will then be used for the automatic compensation of the antenna’s
frequency response during measurements.
The R&S®ETCView PC software, which is included with the R&S®ETC,
makes documentation of results easy. It also includes editors for generating
channel tables, measurement profiles, transducer factors and limit-value
tables, which are downloaded into the R&S®ETC. Data transfer between the
R&S®ETC and the PC takes place over USB or LAN. The software also enables
remote signal monitoring, for example at unattended transmitter sites.