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3 Presentation
3.1
General
The field strength measurers
787X
are handy appliances designed for the installation and maintenance of
any broadcasting and reception installations of analogical and digital terrestrial television channels, satellites
or cable networks.
The band ranges between
5 MHz and 2200 MHz;
this allows accurate measurements on all analogical
television standards, FM carrier waves and the various digital standards DVB-C/C2, DVB-T/T2/T2Lite,
DAB/DAB+, DVB-S/S2, DSS.
They do
Level
measurements in average, peak and power according to the selected standard.
In
Measurement Plan
mode, they scan up to 50 setups at the same time and compare them to decision
levels (min / max).
Equipped with an efficient
Bit Error Rate
measurement (various BER, MER), they allow the full validation of
digital transmissions DVB-T/T2/T2Lite, DVB-C/C2, DAB/DAB+, DVB-S/S2 and DSS.
Providing a
Constellation
diagram for digital standards, the detection and display of
Echoes and pre-
echoes
and the display of
MER per carrier
in DVB-T/T2/T2Lite and DVB-C2 to have a complete analysis of
the digital signals.
The
Expert
Spectrum
analysis,
quick and accurate, allows the display of the disturbances and the
measurement of C/N, power...
You can display the
digital terrestrial or satellite
TV
under SD or HD.
The Measures-TV-Spectrum mode allows the simultaneous display of the spectrum measurement and of the
video of the one same signal.
A HDMI socket allows the transmission from HD video to TV.
You can hear digital sound through integrated loudspeakers.
Designed for use on field, they are compact (less than 3 kg, battery included), autonomous (battery pack and
quick charger), equipped with a LCD
10’’ touchscreen (capacitive).
The high memory content allows the storage of many configurations, measurements and spectrum curves.
Each appliance is fully remote-controlled through USB and ETHERNET connections via a computer.
Attention : 7871 - 7872 - 7875 - 7876
Consult the Selection Guide to know the possibilities of your device.
