The Newtec Horizon HZ420 is a professional satellite to terrestrial transceiver used
in mobile and terrestrial television networks where the content is
distributed to the transmission towers via satellite.
The HZ420 integrates a satellite demodulator, a DVB-S/S2 filtering module, a Local Drop module
and a DVB-T/DVB-H COFDM modulator.
The Horizon transceivers are compact units to be installed in each of the remote transmission
towers. Each transceiver unit integrates all the building blocks necessary to receive one satellite
carrier transporting one or several television multiplexes, extract one of these multiplexes, remove
unnecessary TV channels, synchronize the signal with other transmission towers (SFN) and modulate
the signal to be transmitted terrestrially to the set-top boxes or mobile handsets.
The HZ420 offers the possibility to work in Multistream mode, an advanced feature of the DVB-S2
standard. This technology allows the operator to distribute multiple multiplexes on the same satellite
carrier. This Multistream functionality does not effect the content of the multiplexes and is therefore
fully compatible with SFN operation. Unlike multiple carrier configurations, this mode of satellite
transmission allows operating near transponder saturation and therefore optimizes the bandwidth efficiency.
The integrated Local Drop functionality allows the operator to distribute all local and national
content on the same satellite carrier and to arrange the content of the terrestrial multiplexes
locally. Without this feature each local multiplex would need to be assembled centrally and
distributed separately, increasing the satellite bandwidth cost dramatically.
HZ420 Key Features
Compliant with DVB-S2 and DVB-S/DSNG
Compliant with DVB-T and DVB-H
Operation in MFN and SFN
Integrated Local Drop function
Integrated GPS receiver
Up conversion to VHF or UHF band
Compact and cost-efficient design
Highest satellite bandwidth efficiency
Fast and uniform network deployment
Efficient local content distribution
Easy installation and maintenance
The core application of Horizon is the primary distribution of TV signals to terrestrial towers in mobile TV
or Terrestrial TV networks. The HZ420 unit supports the following operation modes:
Primary distribution of national and regional content
Distribution of DVB-T or DVB-H services together with other services sent on the same satellite carrier
Deployment in towers where intermediary processing by external devices need to take place between the local
drop function and the re-modulation in COFDM.
This product can be installed in any transmission site, from
high-power towers to smaller gapfi llers.