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7849B – 7859B – 7817B
2 Presentation
2.1
General
The field strength meters 7849B-7859B-7817B are appliance designed for the installation and maintenance
of any broadcasting and reception installations of analogical and digital terrestrial television channels, satel-
lites or cable networks, for RF or optical modulated signals.
The band ranges between 5 MHz to 2400 MHz; this allows accurate measurements on all analogical televi-
sion standards, FM carrier waves and the various digital standards DVB-C/C2, DVB-T/T2/T2Lite, DVB-
S/S2/S2X and 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 lev-
els (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, DVB-S/S2/S2X and DSS.
Providing a Constellation diagram for digital standards, the detection and display of Multipaths permit to
complete this analysis.
You can display the digital terrestrial or satellite TV (free programs) under SD or HD.
You can hear digital sound through integrated loudspeakers.
The 7859B has an Optical input (optical head, FTH cable): it integrates an optical power measurement and
an optical-to-RF converter in the Field Measurer band.
The 7817B has a special "One-Touch" feature designed to qualify the installations of subscriber broadcast
networks.
Designed for use on field, they are compact (less than 2 kg battery included), autonomous (battery pack and
quick charger), equipped with a LCD 7'' touchscreen (capacitive).
The high memory content allows the storage of many configurations, measurements and spectrum curves.
The appliances fully remote-controlled through USB and ETHERNET connections via a computer.
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