types: Air cooled Liquid cooled	Specifications for SKY digital transmitters view in PDF .
	SKY digital (DVB-T/T2 and DVB-H) transmitters  integrate more than 55 years of experience with the latest digital technology The SKY series of digital (DVB-T/T2 and DVB-H) transmitters combine Elti’s reputation for robust equipment with the latest digital technology: a COFDM modulator provides 2k up to extended 32k IFFT operation mode (up to 8k for DVB-T). They are scalable and flexible, supporting applications from 500 mW up to 10 kW rms; low power applications are available in two compact versions, up to 5 W rms in 3U and up to 150 W rms in 4U and combined with the Elti range of power amplifiers they offer transmission solutions up to 10 kW rms, as air cooled or liquid cooled transmitters. the Elti advantage Fully compliant with EN 300 744 (DVB-T), EN 302 755 (DVB-T2) and EN 302 304 (DVB-H) Full hierarchical mode support IFFT 2k up to extended 32k mode 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 Compact and highly cost effective transmitter family minimizing total cost of ownership A plenty of redundancy options for exciter and power High efficiency for minimizing total operating costs Options for sky transmitters RF output filter in non-critical and critical mask configuration non-critical and 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 transmitters on site - use rackmountable computer and rackmountable keyboard view technical documentation in PDF. exciter The exciter is housed in a compact 19” 3U rack mount with the A class amplifier that provides 5 W of UHF output power. The built-in COFDM modulator features 4 ASI inputs, and provides 2k up to extended 32k IFFT operation mode (up to 8k for DVB-T). If the primary transport stream source fails the exciter can switch between the four ASI inputs manually or automatically. Unit is supporting MFN and SFN operation, featuring an integrated GPS receiver. To optimize transmitter performance a digital pre-corrector is included with an adaptive digital pre-correction (optional for DVB-T/T2 and DVB-H transmitters) to correct linear error and non-linear distortion of RF power amplifiers. The exciter fully supports DVB-T2 standard (EN 302 755). power amplifier External amplifiers are available in models supplying 250 W and 500 W of UHF output power and 600 W of VHF output power. All amplifiers are designed for broadband and employ the latest state of the art LDMOS technology to guarantee linearity, compact design and high efficiency for minimizing operational costs. Self-protection circuits assure continuous operation and uninterrupted service in sight of minimizing operational costs. Multi-standard platform High energy efficiency reduces operating costs Ready for the DVB-T2 standard Excellent ruggedness and broadband performance Excellent reliability, oversized to increase operational time Internal pre-driver Easy maintenance without special tools Strong mechanical structure Ethernet interface, all available settings and measurements can be made through the EDM web interface. Communication/control software included compact transmitters They are available in a compact 19” 3U rack mount with the A class amplifier, with up to 5 W of UHF output power for compact 19” 4U rack mount with the AB class amplifier, with up to 150 W of UHF output power. liquid cooled solutions Liquid cooling solutions comprises of two water pumps in passive reserve with an automatic change over in case of pump failure, one integrated control unit, liquid filter and heat exchanger with dual fans providing maximum redundancy of cooling system. 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 upload of software 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.

1)    Total weight of liquid cooled solution consists of weight of transmitter, pump rack, heat exchanger etc.

2)    Total power consumption of liquid cooled solution consists of power consumption of transmitter, pump rack, heat exchanger etc.

3)    RF output power after output filter.

4)    Higher RF output power on demand.