DVB-T Modulator: 1.Comply with DVB-T, dvb headend 2.Support OFDM with:2k,4k,8k 3.Support modulation with: QPSK,16QAM,64QAM

DVB-T Modulator ( DVB Headend ) :

CATV Headend, Digital Headend, DVB Headend Modulator

 

Outline

Telecast MDDT01A DVB-T Modulator is a high performance modulator developed according to DVB-T (EN300744) standard. It adopts advanced framing structure, channel coding and modulation technology. And it also supports both MFN (Multi-frequency network) and SFN (single frequency network). It has 4 ASI input ports, one GPS.10MHZ input port and one 1 PPS input port. In order to improve the output performance of the transmitter, the DVB-T modulator can simultaneously support linear and nonlinear pre-correction. This device supports local and remote control through NMS software. 

Features

Fully complying with DVB-T standard (EN300744) SFN and MFN supporting Transfer mode 2k, 4k, 8k optional Hierarchy modulation Alpha1, 2 and 4 optional  Transfer bandwidth 6M, 7M and 8M optional Supporting linear and non-linear correction Excellent phase noise and MER performance, MER ≥42db RF output range 36~960MHz, 1hz step Four ASI inputs supporting hot backup Constant temperature crystal oscillator, frequency stability is high up to 0.1ppm Full-size front panel LCD display and keyboard, NMS management.

Specifications

 

 

Input			4 channels ASI input, hot backup, BNC port
			GPS 10Mhz reference clock input, BNC port
			GPS 1PPS input, BNC port
Modulation	standard		EN304 744
	FFT		2K,4K,8K
	bandwidth		6M,7M,8M
	constellation		QPSK,16QAM,64QAM
	Guard interval		1/4,1/8,1/16,1/32
	FEC		1/2,2/3,3/4,5/6,7/8
	Hierarchy modulation		Alpha=1,2,4
RF output	ASI loop out		2channels ASI loop out, BNC port
	interface		N type, 50Ω impedance
	RF range		36~960MHz,1hz step
	ATT		-16dbm~+3dbm,0.1db step
	MER		≥ 42db
Linear   pre-correction	Correction points		16
Non-linear pre-correction	Correction points		512
System			Full-size front panel LCD display and keyboard, NMS management
			Software upgrading
General		Demission (W*L*H)	482mm×455mm×44.5mm
		Weight	6.1kg
		Temperature	0~45°C(operation),-20~80°C(storage)
		Power supply	AC 110V±10%,50/60Hz or AC 220V±10%,50/60Hz
		Consumption	28.6W

 

 

DVB-T Modulator (4 ASI IN;GPS 10Mhz\1pps;2 ASI OUT )

Verified Information This information is Verified by Bureau Veritas and validity period is 2012/05/15 --- 2013/05/15 All the information below may covers both Gold Supplier and its related companies , Their Relationship will be affirmed according to china laws and regulations , also it will be clearly display in the full report >> Production Capacity: Product line name Production Line Capacity Actual Units Produced(Previous Year)

Modulator	600 Sets/Year	600 Sets

Export Market Distribution: Market Revenue(Previous Year) Total Revenue (%)

South America	confidential	6.0
Eastern Europe	confidential	6.0
Southeast Asia	confidential	12.0
Africa	confidential	36.0
Domestic Market	confidential	40.0

Production Machinery: Machine Name Brand & Model No. Quantity Number of Year(s) Used Condition

Welding Equipment	SE-835	1	1.0	Good
Thermostatic Oven	SK-101	1	1.0	Good
BGA Rework Table	X7	1	1.0	Good
Burn In Room	No information	2	5.0	Good

Testing Machinery: Machine Name Brand & Model No. Quantity Number of Year(s) Used Condition

Scalar Network Analyzer	AT3612C	1	5.0	Good
Spectrum Analyzer	R3265	1	10.0	Good
Tektronix 350MHz Oscilloscope	2465A	1	10.0	Good
Spectrum Analyzer	No information	1	10.0	Good
Frequency Megahertz	8000C	1	10.0	Good
Electronics	TH2820	1	10.0	Good

Production Flow: 1.Raw material 2.Welding 3.Debugging 4.Assembly 5.Burn in 6.Inspection 7.Packing Certification: Certified Picture Certification Name Certified By Certificate No. Product Name & Model No. Available Date-Expired Date

	FCC	BTS	Bel-cn-071211-93	QAM Modulator NDS3303	2008/01/18 --- 2049/12/31
	CE	BTS	Bel-cn-071211-13	QAM Modulator NDS3303	2008/01/18 --- 2049/12/31