types:

Air cooled
ARX 500 mW
ARX 1 W
ARX 2 W
ARX 5 W
ARX 10 W
ARX 25 W
ARX 50 W
ARX 100 W
ARX 200 W
ARX 400 W
ARX 600 W
ARX 800 W
ARX 1,2 kW
ARX 1,6 kW
ARX 2,4 kW
ARX 3,2 kW
ARX 5 kW
ARX 6,4 kW
ARX 9,6 kW

Liquid cooled
ARX 1,2 kW LC
ARX 1,6 kW LC
ARX 2,4 kW LC
ARX 3,2 kW LC
ARX 5 kW LC
ARX 6,4 kW LC
ARX 9,6 kW LC

Elti has developed ....

…the new range of ARX digital repeaters for complete restoration as the DVB signal is received and re-transmitted

The ARX series of regenerative digital repeaters features built-in error correction via the intelligent COFDM modulator that provides error-free retransmission of multi frequency DVB networks. The error-corrected transport stream is also available via ASI output for local re-multiplexing, or monitoring purposes. The modulator allows the repeater to function as a transmitter. Low power applications are available in compact designs up to 100 W rms; the range of LDMOS power amplifiers offers scalable solutions up to 9,6 kW rms, as air cooled or liquid cooled repeaters.

the Elti advantage

• 5 years warranty
• Fully compliant with EN 300 744 (DVB-T) and EN 302 304 (DVB-H)
• Full hierarchical re-modulation support
• IFFT 2k, 4k and 8k mode
• High sensitivity input tuner
• Local re-multiplexing
• LDMOS technology
• Remote management and control via TCP/IP, HTTP and SNMP interface
• Settings fully adjustable by software
• Flexible, scaleable and upgradeable
• Plug-and-play installation
• Adaptive digital precorrection and clipping function

Options for arx repeaters

• RF output filter in non-critical and critical mask configuration
  non-critical mask filters
  critical mask filters
• GPS receiver with GPS antenna - when operating in SFN view technical documentation in PDF;
• UPS for exciter - excellent solution to avoid long time syncronization to GPS satellite after power supply break view technical documentation in PDF;
• GSM modem - sending SNMP traps over SMS protocol view technical documentation in PDF;
• Supervising the repeaters on site - use rackmountable computer and rackmountable keyboard view technical documentation in PDF.

exciter

The exciter is housed in a compact 19” 3U rackmount and, with the A class amplifier, provides 5 W of output power. The high sensitivity input tuner provides optimised reception of the RF DVB signal. The DVB signal is completely demodulated to MPEG-2 TS and error-corrected before retransmission in a fresh COFDM spectrum. Error-corrected MPEG-2 TS is available via ASI output for local re-multiplexing, and the ASI input allows the repeater to function as a transmitter. To optimise repeaters performance a digital precorrector is included with an option of adaptive digital precorrection (optional) to correct linear error and non-linear distortion of RF power amplifiers. Various interfaces provide connectivity to the supervisory systems and a remote/local connection to the PC base that features user friendly Elti Device manager software (EDM).

The compact repeater includes the exciter functions, the power amplifier and output filter internally.

power amplifier

External amplifiers are available in models supplying 200 W and 400 W of output power. All amplifiers are designed for broadband and employ LDMOS technology to guarantee linearity, compact design and high efficiency. Self-protection circuits assures continuous operation and uninterrupted service.

control and monitoring

The integrated control unit provides full control over the assembly and additional options/features. Control software EDM (Elti Device Manager) with a user friendly graphic interface comes as standard for all Elti DVB-T and DVB-H products. It features:

• Control of all parameters related to operation
• Password protection and access control
• Measurement and display of power, voltage, current, temperature
• Alarm
• Management of machine history
• Save and restore function
• Remote software upload

The control software offers the same comprehensive functionality whether used locally or remotely via TCP/IP, SNMP or GSM networks. External connections are provided by:

• Ethernet LAN/WAN for local/network access
• RS 232 for local access

The central control unit allows integration into ELTI ETRC telemetry system or other supervisory systems. It also offers the control of third party equipment and integration into a single system at the transmission site.