DVB-T modulator

DVB-T modulator 1.t adopts advanced framing structure, channel coding and modulation technology 2.2 AIS input ports DVB-T modulator   Discription

The 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 2 AIS 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) Both SFN and MFN support 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 ≥40db RF output range 110~860MHz, 1hz step Two 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		2 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	110~860MHz,1hz step
	ATT	-16dbm~0dbm,0.5db step
	MER	≥ 40db
Linear   pre-correction	Correction points	16
Non-linear pre-correction	Correction points	256
System		Full-size front panel LCD display and keyboard, NMS management
		Software upgrading
General	Demission (W*L*H)	482mm×455mm×44.5mm
	Weight	4.9kg
	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