OFDM Same Frequency duplex Transmitter and Receiver

OFDM Same Frequency duplex Transmitter and Receiver

1、Function:

This device can reuse the image and sound returned from the front equipment, using the same frequency to transmission. Support digital signal input by SDI or ASI, and the receiver outputSDI、ASIand analog audio & video signal, and it can be encrypted

(1)：Video and audio transmission

usupport 1-4 lines AL/NTSC video image compression and decompression

usupport 1-4 lines audio transmission

uvideo code mode: H.264,video data:16Kbps-4Mbps

ucompression frame rate: 25f/m（PAL), 30f/m(NTSC)

uimage resolution: CIF、1/2SD、SD（720×480）

uTCP、UDP protocolapply streaming Media technologyone point to multi-points real-time network playing

uRemote camera control function(RS-485 interface)

(2)：Talkback function

uSoftswitch talkback function, support SIP protocol

uSet talkback through IP address, support 2-8 talkback.

uG.729A、G.711 audio code mode

uThe network echo eliminate automatically

uPTT、VOX and Full-duplex talkback method (optional)

(3)：Data communication

uTwo compatible IEEE802.3 protocol Ethernet interface.

u10M/100M adaptive, support full-duplex and semiduplex

uautomatic line sequence across function

uLED display the Ethernet link state

(4)：Data transport abiliity

uCarrier wave bandwidth: 8-28Mhz

uModulation mode: BPSK、QPSK、QAM4-1024, the maximum data throughput up to 98Mbps

uCarrier wave numbers: 300-2.4K.

uData security: 128AES encrypt method

(5)：RF interface

uHigh linear RF PAoutput power: 43dBm(20W)

uOutput power automatic control technology.

uParallel design LNA, low noise、low standing wave ratio.

uSpecial designing RF switch, pledge TD working mode

uHigh-precision, low phase noise inverter.

uDigital lock circle frequency tracking technology.

(6)：Monitoring and Operation interface

uSupport web management mode

uDevice operation panelLED、LCD、key-press

LED：display power supply、warning、RF link state、CPU state

LCD screen: 128*64 Chinese LCD screen

uPanel operation function

Setting：maximum transmit power、 device plus、warning threshold