DVB-T Modulator from China manufacturer - Jiexun (chengdu) Electronics Co.,ltd

Price:	1.0~2000.0 USD
Payment Terms:	T/T,D/P
Place of Origin:	Sichuan, China (Mainland)


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Product Detail

Model No.: JXDH-6405TX

Production Capacity: 5000sets/month

Delivery Date: 3-5 days

Input interface: ASI and SPI: Modulation mode: QPSK ,16QA...

Means of Transport: Air

Packing: 220*450*135mm (carton)

Brand Name: Jiehao

DVB-T Modulator
1. Comply with EN300744 standard.
2. Support 6MHz/7MHz/8MHz band width
3. Inserting SI data

JXDH-6405 DVB-T Modulator converts input data streams into frequency signals, it meets DVB-T standard. Signals from MPEG-II compact encoder or multiplexer was sent into DVB-T modulator. According to DVB-T standard, such as FEC, interlacing, RS error correction encoding, etc. After IF processing and up-converting into the range of TV channels, signals can be transmitted through HFC and MMDS networks. Its widely used in digital TV, data broadcasting, VOD, Internet, video conference SV.

Features

* Comply with EN300744 standard; support 6MHz/7MHz/8MHz band width

* Error correction follows DVB-T standard

* Operable in QPSK, 16QAM, 64QAM mode

* Support 2K/8K carrier-wave operating mode

* FEC encode supports 1/2\2/3\3/4\5/6 and 7/8

* Secure time interval supports 1/4\1/8\1/16\1/32

* Input interface: ASI and SPI(DS3/E3 optional)

* Input bit rate::1.5~31.67Mbps

* Output band width: 6/7/8MHz

* RF output: 48~860MHz

* Output level: 105dBuV~115dBuV(step adjustable)

* 188 and 204 packet automatic identification; shows real-time data format

* Adopt high capability buffer; ASI interface supports burst and equality TS, while re-construct equality TS.

* Advance output TS efficiency

* Capable of NIT mapping and sending; supports over 44 NIT mapping frequency

* Holds 10 groups of PID filtering and re-mapping function

* Support all PSI/SI data abstraction, modification and analysis

* Inserting SI data

* Null packet filtering and filling

* Performs multiple PCR correction simultaneously

* Monitor and test real-time enter/valid bit rate

* Self-adjust filter circuit design in order guarantees superb SNR (out of band)

* -20dB RF test output is available (IF output is also available)

* Failure alarming

* LCD display

* With RJ45, actualize central NMS, distant upgrade/maintenance (NMS software is optional)

* Power off memory

Specifications

ASI Interface (Asynchronous Serial interface)

Input	Connector	BNC
	Impedance	75Ω
	Packet format	188 or 204 bits (without channel coding)
	Access data rate	270Mbps
	Max valid bit rate	31.67Mbps
	DVB standard	supports burst and equality TS
Loop output	Connector	BNC
Loop output	Impedance	75Ω

SPI input interface (Synchronous Parallel interface)

Connector	DB-25 female
Packet format	188 or 204 bits(without channel coding)
DVB Standard	LVDS

IF interface

IF input	Connector	BNC
	Impedance	50Ω
	IF frequency	36MHz/35.25/36.15/44MHz(optional)
	IF Bandwidth	≤8MHz
	Reflect loss	≥18dB
	Input level	95dBuV(rms)
IF loop output	Connector	BNC
	Impedance	50Ω
	IF frequency	36MHz/35.25/36.15/44MHz( optional )
	IF Bandwidth	≤8MHz
	Reflect loss	≥18dB
	Output level	95dBuV(rms)

RF interface

RF output	Connector	BNC
	Impedance	75Ω
	Output Frequency	48MHz~860MHz(in segment)
	Reflect loss	≥15dB
	Output level	105dBuV~115dBuV(adjustable)
	Carrier rejection	>55dB
	MER	≥42dB
	SNR(out of band)	≥50dB
RF output for test	Connector	BNC
	Impedance	75Ω
	Output level	85dBuV~95dBuV(adjutable)

Channel signal encoding

Constellation	QPSK,16QAM,64QAM
Channel encoding	RS encode, DVB standard
FEC encoding	1/2\2/3\3/4\5/6\7/8
RS encoding	204byte mode
IFFT	2K/8K
Secure time interval	1/4\1/8\1/16\1/32
MER	≥44dB
SNR(out of band)	≥50dB