Digital Headend Equipments, buy Lower CAPEX/OPEX Indoor digital rf modulator to Terrestrial UHF Transmitter / Repeater 1000W digital tv broadcasting equipment on China Suppliers Mobile

Product Details

Product Description

800-1600W Digital TV Transmitter

Dibsys’s DTT5900-1600 series is a medium power air cooled UHF terrestrial DTV transmitter which combines up to four power amplifier modules with a maximum 1600W of output power. It has superior performance and enhanced efficiency by adopting a series of technologies. It can work in any frequency within the UHF span, and the transmitting bandwidth can be up to 80MHz.

This series of products has an optimized design in forced air cooling and architecture, with lower noise, higher efficiency and outstanding anti-interference performance; DTT5900-1600 series can support a wide range of Digital Terrestrial Television (DTT) standards, such as DVB-T/H, ATSC, DTMB, ISDB-T/Tb and even the latest DVB-T2 standards.

By incorporating our latest technologies of linear and non-linear digital adaptive pre-correction, RF delay and co-channel interference rejection, this system fulfills the needs of single band or broadband transmission in medium to large-scale terrestrial coverage scenarios.

Feature

High Performance

---Supports up to 2500W of digital output power for DVB-T/DVB-T2/ISDB-T standard

---Up to 3000W of digital output power for DTMB/ATSC standard

---Optimized structure design, with lower noise, higher efficiency and outstanding anti-interference performance

High Flexibility and Stability

---Modular design across the whole system, easy installation, maintenance and upgrade

---Optional 1+1 redundant exciters and Preamplifiers

---Multiple protection mechanisms are introduced for over load, over temperature, over current and high VSWR

---Large and dynamic Auto Gain Control (AGC) circuit ensures stability of output power

---Improved power efficiency thanks to linear and non-linear Digital Adaptive Pre-correction

High Adaptability and Availability

---Suitable for different contries and/or areas because multiple DTT standards are complied with, including DVB-T, DVB-T2, ATSC, DTMB and ISDB-T/Tb

---Available in single and three phase power grid environments to meet different requirements of deployment

---Wide range of working frequency from 470MHz to 860MHz

Lower CAPEX/OPEX

---Improved ratio of cost to performance, lower CAPEX for operators

---Low power consumption with high efficient LDMOS amplifiers to reduce electricity cost for operators

---Reduced investment in manpower, benefits from convenient local monitoring and management through built-in touch screen display or remote monitoring via SNMP network ---management and/or telcom wireless network

User Friendly Monitoring Interface

---Built in color TFT LCD with touch screen in the front panel, supports monitoring & control of working states and any malfunction on any module without additional testing/monitoring equipment required, such as transmitting power, VSWR, working voltage/current, fan speed, IP address and so on.

Application

---Digital TV head-end system

---IPTV, Over-the-air TV distance learning

---Remote live Rebroadcasts and real-time transmission

---HD or SD video via private IP networks

Specifications

General Parameter
Ordering Codes	DTT5900-800	DTT5900-1000	DTT5900-1200	DTT5900-1600
Output Pewer(RMS)**	800W	1000W	1200W	1600W
Number of PAs	3		4
Number of Power Supplies	3		4
Weight	230Kg(507lbs)		250Kg(551lbs)
Frequency Range(FIN)	470 to 860MHz
Channel Bandwidth	6MHz,8MHz
Supported Standands	DVB-T2,DVB-T/H,ATSC,ISDB-T/Tb
Transmitting Mode	Standard:Single band Optional:Broadband(maximum 80MHz)
Supported Network	SFN or MFN
Cooling Method	Forced Air Cooling
Dimensions (W×H×D)	650mm×1700mm(35U)×1000mm(25.6’’×66.9’’×39.4’’)
Note:**The above output powers are colculated per ATSC/DTMB standards under single band mode

Main Components
Preamplifier	1×Preamplifier module(3U)
Exciter(Optional)**	1×DVB-T2/DTMB Exciter(modulater)(1U)**
Power Splitter and Combine	Built-in
Monitoring and Control Unit	1×Monitoring control unit(2U) with 7’’LCD touch screen
Bandpass Filter(Optional)	Optional Single band or broadband Bandpass filter
Note:**Please contact our sales representative for the other exciter/modulator requirments.

Environmental
Operating Temperature		0 to 45℃
Operating Humidity		0 to 95%，non-condensing

Power Supply
AC Input	Three-Phase Option	4 wires(3-phase+neutral),342-418V AC,50Hz±5%
	Single-Phase Option	2 wires,190-250V AC,50Hz±5%
Surge Protection		Built-in AC Surge Protector

I/O Interface
TS Input	DVB-ASI(BNC female,75Ω)(DTMB/DVB-T2 Exciter)
MPEG-TS over IP	100/1000Base-T,RJ-45(DVB-T2 Exciter)
RF Output	EIA1-5/8’’flange
1PPS Clock Input	BNC,female,50Ω(DTMB/DVB-T2 Exciter)
10MHz Clock Input	BNC,female,50Ω(DTMB/DVB-T2 Exciter)
RF Monitor Output	SMA,female,50Ω

Monitoring & Control
Local Monitoring & Control	TFT LCD touch screen
Network Management Interdace	10/100Base-T Ethernet,1×RJ-45, SupportingWeb-browser or SNMP network management

Electric Performance
Frequency Stability	≤±1×10-7(Internal reference ) ≤±1×10-7(External 10MHz reference clock )
Frequency Accuracy	MFN,≤±100Hz,SFN,≤±1Hz
MER	≥33dB
Shoulder of Single @±fc4.2MHz	≤-36dB
In-band non-flatness@±fc3.591MHz	≤±0.5dB
AGC Power Control Range (△GAGC)	±8dB
Stability of Output Power(△POUT )	≤±0.5dB