FOURTH SERIES LOW POWER

FOURTH SERIES LOW POWER

The TRedess Fourth Series Low Power is a family of air cooled UHF Transmitters and Gap Fillers, which bring together high quality performance, modularity,  flexibility, outstanding compactness and smart installation and operation, thanks to its all-in-a-box standalone architecture (exciter and amplifier on the same chassis). The TRedess Fourth Series Low Power provides output power ranges up to 400W and covers the DVB-T/T2 and ISDB-T/Tb standards, for both MFN and SFN networks.

Transmitters can also work in Regenerative Transposer mode. Gap-fillers can work as MFN Transposer, or in SFN On-channel Repeater mode, using TRedess’ DEEC, the best echo canceller in the market.

 

Fourth Series ultra-compact units (up to 75W in 1U, up to 150W in 2U, and up to 400W (Ultra-Wide Band Doherty) in 3U, are ideal for scenarios with space limitation at the site.

 

Thanks to Ultra-Wide-Band Doherty technology, important cost reductions in energy consumption can be achieved without impacting in a truly smart operation and maintenance.

01

Características

High level of compactness: 10W, 40W and 75W in a 1U rack unit. 150W in a 2U rack unit. 300W (Class AB) and 400W (UWB Doherty) in a 3U rack unit.

Ultra-Wide-Band Doherty for 400W transmitters: energy efficiency with same HW for the entire UHF TV band

DVB-T/-T2 and ISDB-T/-Tb modulations supported. MFN and SFN operation.

Extractable hot-plug PSU in 275W and 400W units, optionally redundant.

2xTS over IP inputs and 2xASI inputs (default) with seamless switching.

Digital linear and non-linear pre-correction.

Built-in echo canceller DEEC able to guarantee: Gain Margin = 24 dB. Doppler echo cancellation. Configuration of selective window up to 37 us.

Example: cancellation of an echo 20dB higher than the signal with DEEC echo canceller, with output MER > 27dB.

Input signal
Output signal
02

Propiedades avanzadas

Optional 1+1 and N+1 redundancy functionality: No need of an additional switching unit for the 1+1, saving cost, rack space and reducing points of failure, as the intelligence for the switching is located in the Transmitters itself. Additional switching
Full remote control functionality for easy remote operation: Including smart web interface, SNMP agent and I/O contacts interface.
Very flexible routing capability for Ethernet and TSoIP traffic
Operation as MFN Transposer
Optional built-in Terrestrial RF input (DVB-T/T2): Allowing for DVB-T2 SFN Regenerative transposer operation based on T2-MI + Mode A encapsulation.
Multiple PLP supported (up to 8 PLP) in DVB-T2.
Additional SFN GPS-free operation with BTS-rate-lock in ISDB-T/Tb.
Embedded GPS option
Optional built-in Satellite (DVB-S/S2) input.
Smart Web Interface
Cancellation Window System
03

Ventajas y beneficios

No need of an additional switching unit for the 1+1, saving cost, rack space and reducing points of failure, as the intelligence for the switching is located in the transmitters itself.
View of the Transmitter output spectrum both locally and remotely.
Very intuitive graphical interface allowing a full control and operation of the transmitter.
Counting with the Best echo canceller available on the market, allowing the cancellation of high echo levels with an optimum output MER quality.
Significant cost savings due to the possibility of installing a TRedess Gap Filler with DEEC in site scenarios where other manufacturers would only be able to install a Transmitter.
Very flexible Echo cancellation system based on a 16 cancellation windowscost savings due to the possibility of installing a TRedess Gap Filler with DEEC in site scenarios where other manufacturers would only be able to install a Transmitter.