Specifications

DVB-T2 head end modulator
Fully complying with EN302 755
Support DPD
1 ASI input, 10MHz input, 1PPS input/output

Outline

 

 

 

NDS2406 (NDS2406A) DVB-T2 modulator is our new product developed complying with the DVB-T2 standard. With its advanced modulating technology, this modulator can effectively make use of the ground spectrum resources and make it possible to provide reliable signals for fixed, mobile and portable devices. Compared with DVB-T, the channel capacity is increased by 30% under the similar carrier to noise ratio (CNR) threshold. NDS2406 (NDS2406A) DVB-T2 modulator also supports single-PLP and MI (T2-MI) interface, and can receive transmission data and synchronous information from DVB-T2 Gateway through its ASI and IP ports.

Moreover, this device can be upgraded and controlled through network system, which allows it to be widely used in setting up digital broadcasting network and provide good signals for scientific laboratory and DVB-T2 STB.  

 

 

Features

 

1. Fully complying with EN302 755 standard
2. 4 ASI input (3 for backup)
3. T2-MI over IP input (Option)
4. 10MHz input/loop out, 1PPS input/loop out
5. DVB-T2 RF output
6. Supports single PLP, multi-PLP (Option)
7. Support MISO and SISO
8. Support QPSK/16QAM/64QAM/256QAM (normal or rotated)
9. Support TS format: T2-MI (Option) or TS (Mode A)
10. High performance output: MER>43dB, shoulder level>56dB
11. Output signal bandwidth: 5M, 6M, 7M, 8MHz
12. Support MFN and SFN (Option) net mode
13. Supports non-linear and linear digital pre-distortion (DPD)
14. RF output level: -25~+3 dBm, 0.1db stepping
15. Constant temperature crystal oscillator, as high as 0.1ppm stability
16. Support online upgrade
17. Keyboard operation and LCD display
18. Web Network management system   

Specifications

Input	T2MI input over ASI and IP (Option)		1000 Mbps Ethernet port ----NDS2406A
			100 Mbps Ethernet port ----NDS2406
	TS input over ASI
	10MHz reference clock input and loop out, BNC interface
	1PPS input and loop out, BNC interface
Modulation	Standard	EN302 755
	Mode	Mode A: single-PLP; Mode B: multiple-PLP (Option)
	PLP Constellation	QPSK, 16QAM, 64QAM, 256QAM (Normal or Rotated)
	L1 Post Constellations	BPSK, QPSK, 16QAM, 64QAM
	FEC Length	Short(16K), Normal (64K)
	FEC Rate	1/2, 3/5, 2/3, 3/4, 4/5, 5/6
	Pilot Pattern	PP1 - PP8
	Guard Interval	1/128, 1/32, 1/16, 19/256, 1/8, 19/128, 1/4
	FFT Mode	1k, 2k, 4k 8k, 16k, 32k (normal or extended)
	Bandwidth	5MHz, 6MHz, 7MHz, 8MHz
	Net Mode	MFN, SFN (Option)
RF Out	Connector	N Type, 50ΩImpedance
	RF range	30~999Mhz, 1hz stepping
	Output level ATT	-25~+3 dBm, 0.1db stepping
	MER	> 43db
	Shoulder Level	>56dB
System	LCD display, keyboard and Network management
	Supporting software upgrading through network
General	Demission (W*L*H)			482mm×410mm×44mm
	Weight			4.8kg
	Temperature			0~45°C(operation),-20~80°C(storage)
	Power supply			AC 220V±10%,50/60Hz
	Power Consumption			34W

 

 

 

 

                    Shoulder Level with DPD Disabled   vs   Shoulder Level with DPD Enabled

 

 

                                                MER

 

 

 

 

Principle Chart