SVP HDT-02, User Manual

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HDT-02_H.264 High Definition Digital Camera Transmitter
MANUAL V9.9 21
DVB-S2 features (optional)
In case the HDT-02 Transmitter is needed to be used as a satellite
Transmitter, it features an IF stage in the L band with an output power level
from -50 to +5 dBm and a high stability and low phase noise.
The HDT-02 digital camera Transmitter uses single carrier or one modulation
from the next available: QPSK, 8PSK, 16APSK or 32 APSK where the most
robust is the QPSK and the one with the bigger bit rate is the 32 APSK.
In addition, the European ETSI EN 302307 standard defines the following
LDPC coding rates: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10.
In the modulation stage it is also included a roll off factor (0.20, 0.25, 0.35)
which is used to reduce intersymbol interference where the value that most
reduces interference but with less bandwidth is 0.20.
To sum up, with all of these characteristics, the maximum bit rate achieved
is 31 Msym/s (108 Mbps).
DVB-S features (optional)
In case the HDT-02 Transmitter is needed to be used as a satellite
Transmitter, it features an IF stage in the L band with an output power level
from -50 to +5 dBm and a 10 MHz reference oscillator.
The HDT-02 digital camera Transmitter uses QPSK modulation. In addition,
the European ETSI EN 300421 standard defines the following Reed Solomon
coding rates: 1/2, 2/3, 3/4, 5/6, 7/8.