Compact Series is the new generation of TRedess transmitters and gap fillers, developed to optimize coverage areas for digital TV networks in an economic and reliable way. Compact series equipment is a highly compact solution up to 7 transmitters, gap fillers or regenerative transposers can be hosted in a 19”x 5HU subrack, delivering an output power of up to 10W.
High Integration Level Up to 7 channels in a 5U subrack.
Up to 10W Transmitters, Gap Fillers and Regenerative transposers possibility.
SFN and MFN configurations.
SFN synchronization system (GPS).
Remote control & monitoring system.
Very low power consumption.
Very low phase noise local oscillators.
Independent operating mode.
Electromagnetic compatibility and safety according to the CE regulation norms.
DAE echo canceller
The DAE echo canceller is indicated to be used under moderate echo conditions, supports a 10dB gain margin level and performs spectrum equalization.
In addition to cancelling the echo produced by the coupling between the transmitting and receiving antenna, it is able to cancel any echo of the input signal whose delay with the main beam is between 0 and 8μs. Thus, the echo canceller circuit allows correcting the distortions in amplitude of the input signal of the gapfiller when they are caused by multipath propagation.
The DAE echo canceller performs the spectrum equalization in the entire cancellation window.
DEEC echo canceller
The Doppler Enhanced Echo Canceller can suppress Doppler effect and echoes with greater gain margin (higher echo levels), providing an optimum MER performance.
The cancellation coverage is based on three temporal windows of approximately 6μs wide each. Placed in continuous mode, they fully cover a range from 0,5μs to 18,5μs. The three windows can shift independently in a range going up to 37,6 μs.
Prodiving an output MER > 27dB when cancelling an echo 20 dB higher than the main signal provides an Output MER > 27dB for a 20dB gain margin.
For the cancellation of an echo 24dB higher than the main signal provides an output MER > 24dB.