Digital Headend Equipments, buy DIBSYS isdb-t/dvb-t digital headend 500w UHF Digital tv transmitter,ASI/ip to rf transmitter on China Suppliers Mobile

Product Details

Product Description

400-500W Digital TV Transmitter

Dibsys’s DTT5900-500 Series is a low power UHF terrestrial DTV transmitter, which inherits the high performance, high stability and high reliability of Dibsys’s many products. It can work in any frequency within UHF span, and the transmitting bandwidth is up to 80MHz. By incorporating our latest technologies of linear and non-linear digital adaptive pre-correction, RF delay and co-channel interference rejection, this system can fulfill the needs of single band or broadband transmission in small to medium-scale terrestrial coverage scenarios.

This series of products, which has advance design and simplified architecture are small in size, with the advantage of lower noise, higher efficiency, and outstanding anti-interference performance. They support DVB-T/H, DTMB, ATSC, ISDB-T/Tb and DVB-T2 standards, thus having greater flexibility and suitability in actual deployment.

Feature

1.470 to 860MHz

2.Compact structure, supporting up to 500W digital output power

3.Linear & non linear digital pre-correction function in exciter

4.Modular design across the whole system, easy installation, maintenance and/or upgrade

5.Low power consumption with high efficient LDMOS amplifiers to reduce electricity costs for operators

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

7.Low power consumption with linear design, further improves transmitting power and minimizes non-linear distortion, to satisfy transmission requirements of single band and broadband

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

9.Extreme low group delay for DTV signal transmission

10.Multiple protect mechanisms are introduced for over-load, over-temperature, over-current and high VSWR

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

12.Suitable for single channel or broadband transmission enabling low-cost DTV network coverage

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

Universal Specifications
	Ordering Codes	DTT5900-400	DTT5900-500
	Output Pewer(RMS)**	400W	500W
	Number of Power Amplifiers	2×Power Amplifier Modules
	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
	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 Combiner	1×Distributor & Synthesizer(3U)
	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:**Pleasec 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
	Power Supply	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

Mechanical
	Dimensions(W×H×D)	650mm×1480mm(27U)×870mm 25.6’’×58.3’’×34.3’’
	Weight	180kg(396.8 lbs)

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	≤-36dB
	In-band non-flatness	≤±0.5dB
	AGC Power Control Range	±8dB
	Stabilityo f Output Power	≤±0.5dB