types: Air cooled SKY 500 mW SKY 1 W SKY 2 W SKY 5 W SKY 10 W SKY 25 W SKY 50 W SKY 100 W SKY 200 W SKY 400 W SKY 600 W SKY 800 W SKY 1,2 kW SKY 1,6 kW SKY 2,4 kW SKY 3,2 kW SKY 5 kW SKY 6,4 kW SKY 9,6 kW Liquid cooled SKY 1,2 kW LC SKY 1,6 kW LC SKY 2,4 kW LC SKY 3,2 kW LC SKY 5 kW LC SKY 6,4 kW LC SKY 9,6 kW LC	Specifications for SKY digital transmitters view in PDF .
	Elti has developed .... ...the new range of SKY digital transmitters to integrate 50 years of experience with the latest digital technology The SKY series of digital transmitters combine Elti’s reputation for robust equipment with the latest digital technology: a COFDM modulator providing DVB-T streams in 2k and 8k mode, and DVB-H stream in 4k mode. They are scalable and flexible, supporting applications from 500 mW up to 9,6 kW rms; low power applications are available in two compact versions, up to 5 W rms in 3U and up to 100 W rms in 4U and combined with the Elti range of power amplifiers they offer transmission solutions up to 9,6 kW rms, as air cooled or liquid cooled transmitters. the Elti advantage 5 years warranty Fully compliant with EN 300 744 (DVB-T) and EN 302 304 (DVB-H) Full hierarchical mode support IFFT 2k, 4k and 8k 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 Options for sky transmitters 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 transmitters 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 built-in COFDM modulator features two inputs with the option of two more, and provides 2k, 4k and 8k IFFT operation mode. If the primary transport stream source fails the exciter can switch between the two ASI inputs manually or automatically. Unit is supporting MFN and SFN operation, featuring an integrated GPS receiver (optional). To optimise transmitter 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 Managing software (EDM). The compact transmitter includes the exciter functions, the power amplifier and output filter internally. power amplifier External amplifiers are available in models supplying 200 W rms and 400 W rms 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 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.

specifications
STANDARD
Coding and modulation	Supporting each mode according to EN 300 744 and EN 302 304
IFFT mode	2k, 4k, 8k
Useful symbol period	224 µs (2k), 447 µs (4k), 896 µs (8k)
Modulation	QPSK, 16QAM, 64QAM
Guard interval	1/4, 1/8, 1/16, 1/32 of useful symbol period
Inner code rate	1/2, 2/3, 3/4, 5/6, 7/8
Channel bandwidth	8 MHz, 7 MHz, 6 MHz (Optional), 5 MHz (Optional)
Hierarchical coding	Included
GENERAL DATA
Spectrum polarity	Inverted and non-inverted
Digital pre-correction	Included
SFN support	Included
INPUTS
ASI input	2 x BNC, 75 Ω; additional 2 x BNC, 75 Ω (Optional)
Reference frequency input	10 MHz, 1 PPS
GSM modem and antenna	Optional
GPS receiver and antenna	Optional
Input data	MPEG-2 TS bit rate up to 31,67 Mbps an MPEG-4
RF OUTPUTS
Output frequency range	VHF (174 ÷ 230 MHz), UHF (470 ÷ 862 MHz)
RF output power (W rms)*	500 m, 1, 2, 5, 10, 25, 50, 100, 200, 400, 600, 800, 1.200, 1.600, 2.400, 3.200, 5.000, 6.400, 9.600
Return loss	> 18 dB
Power stability	< ± 0,5 dB
Output spectrum meets the requirements of non critical and critical (Optional) mask according to EN 300 744
OPERATING CONDITIONS
Nominal temperature range	In accordance with ETS 300 019-1-3 (class 3.2) - 5 °C to + 45 °C
Relative air humidity	In accordance with ETS 300 019-1-3 (class 3.2)
	95 % @ 30 °C, no condensation [8 % - 100 % for transportation and storage]
Max altitude	2.800 m
MAINS CONNECTION
single phase supply triple phase supply	110/230 V -15% to +10% 50/60 Hz (for devices up to 800 W rms) 3/N/PE ~ 400/230 V -15% to +10% 50/60 Hz (for devices from 1.200 W up to 9.600 W rms)
CONTROL AND MONITORING INTERFACES
Local control	RS 232, Ethernet
Remote control	ethernet, RS 232/422/485 (Optional)
Supported protocols	TCP/IP, HTTP, SNMP (Optional)
GSM control	SMS messaging, GPRS (Optional)
PROTECTION
Output power, Reflected power, Over current, Over temperature, Over voltage
CE CONFORMITY
Low voltage directive	73/23/EEC
EMC directive	89/336/EEC
CE Marking directive	93/68/EEC

MER is better than 33 dB at all powers in all configurations