Outline:

JF640-7C ASI+Twin QPSK muxing COFDM modulator can receive 1 channel ASI and 2 channels QPSK signals separately or together and send to COFDM modulator after signal processing. The signals are upconverted to TV channels after IF processing so as to transmit in HFC and MMDS network. The signals can also be bypassed or modulated output by ASI interface. COFDM coding and modulation are under DVB technology criterion and DVB-T standard.

Features:

1 lSupporting EN300744 and error correction coding meets to DVB-T standard

2 lCan work at QPSK/16COFDM/ / 64COFDM/ mode

3 lSupport 6MHz/7MHz/8MHz BW

4 lSupport 2K/8K carrier wave work mode

5 lFEC support 1/2,2/3,3/4,5/6,7/8

6 lProtect time interval 1/4,1/8,1/16,1/32

7l188/204 package self-adapting , real time display the format of input signal

8 lNIT mapping and sending function , support more than 44 frequency point NIT maps

9 lSupport 8 group PID filter and re-mapping function

10 lSupport amending, analysis and extraction function for PSI/SI table. Can make according order

11 lSI table can be replace and insert

12 lInput empty package filtrate and output fill in

13 lPCR correction function , can correct more than one PCR accurately from input data

14 lReal time detection and display for input system bit rate and effective bit rate

15 lSelf-adapting filter circuit design, guarantee the out-band suppression performance

lAlarm display

16 lLCD display

17 lSupport Network control interface and can implement network management remote update and maintenance(selective)

18 lPower off memory

Technical Specifications:

lQPSK input frequency 950 MHz-2150 MHz

lSymbol rate, 2 MBaud-45 MBaud

lQPSK input level -79 dBm~-11 dBm

lASI input>1.5 Mbps

lRF output frequency, 48 MHz~860 MHz

lRF output level 100dBuV~115dBuV(step, 0.5dB)

lCOFDM modulation output bite rate 2~31.67Mbps

lLCD display, Chinese and English menu

lPower off memory

lRJ-45 interface

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