Newtec Horizon Series HZ420 Intelligent Satellite to Terrestrial Transceiver for DVB-T/H Networks
- Compliant with DVB-S2 and DVB-S/DSNG
- Operation in MFN and SFN
- Multistream operation
- Integrated Local Drop function
HZ420 Satellite to Terrestrial Transceiver
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
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:
This product can be installed in any transmission site, from high-power towers to smaller gapfi llers.
|Supported modulation parameters|
|L-band input: dual input|
|input||75 Ohm on MCX(F), 950-2150 MHz, -25 to -65dBm + 10 log(f) f= Baudrate in Mbaud|
|return loss > 7 dB|
|LNB power and control|
|max. current||350 mA (on selected L-band input)|
|11.5-14 V (vertical), 16-19 V (horizontal), 22 KHz ± 4 kHz ,DiSEqC|
|DVB-T (EN 300 744) and DVB-H (TR 102 377), including|
|IFFT||2K, 4K and 8K|
|Guard interval||1/4, 1/8, 1/16, 1/32|
|Code rates||1/2, 2/3, 3/4, 5/6, 7/8|
|Constellations||QPSK, 16QAM, 64QAM|
|5, 6, 7 or 8 MHz channel mode|
|SFN sync input (option)|
|RF data output|
|N connector 50Ω, 0 dBm nominal output level|
|Frequency||30MHz to 1GHz (steps of 1 Hz)|
|Shoulder level||≤-50dB at nom. level (sidebands excluded)|
|MER value||≥48dB in 2K, 4K and 8K mode|
|Digital Pre-correction (option)|
|Linear correction||Magnitude and group delay correction|
|Non-linear correction||full I & Q amplitude and phase corrector with independent correction of upper and lower sideband|
|Monitor and control interfaces|
|9-pins SUB-D Female interface|
|Output||Generic device and Interface alarms|
|Input||separate reset and output muting control|
|1RU, width 19”, depth 15,3”, 5kg|
|Power Supply||90-130 and 180-260 Vac, 80VA|
5°C to +35°C
-40°C to +70°C
|Humidity||5% to 85% non-condensing|