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 output  SDI、ASI  and analog audio & video signal, and it can be encrypted

(1)：Video and audio transmission

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

u    support 1-4 lines audio transmission

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

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

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

u    TCP、UDP protocol，apply streaming Media technology，one point to multi-points real-time network playing

u    Remote camera control function(RS-485 interface)

(2)：Talkback function

u    Softswitch talkback function, support SIP protocol

u    Set talkback through IP address, support 2-8 talkback.

u    G.729A、G.711 audio code mode

u    The network echo eliminate automatically

u    PTT、VOX and Full-duplex talkback method (optional)

(3)：Data communication

u    Two compatible IEEE802.3 protocol Ethernet interface.

u    10M/100M adaptive, support full-duplex and semiduplex

u    automatic line sequence across function

u    LED display the Ethernet link state

(4)：Data transport abiliity

u    Carrier wave bandwidth: 8-28Mhz

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

u    Carrier wave numbers: 300-2.4K.

u    Data security: 128AES encrypt method

(5)：RF interface

u    High linear RF PA，output power: 43dBm(20W)

u    Output power automatic control technology.

u    Parallel design LNA, low noise、low standing wave ratio.

u    Special designing RF switch, pledge TD working mode

u    High-precision, low phase noise inverter.

u    Digital lock circle frequency tracking technology.

 (6)：Monitoring and Operation interface

u    Support web management mode

u    Device operation panel : LED、LCD、key-press

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

     LCD screen: 128*64 Chinese LCD screen

u    Panel operation function

     Setting：maximum transmit power、 device plus、warning threshold；

     Search：transmit power? Receiving signal intension、 temperature、antenna standing wave ratio、 warning state

2、System target

u    Working frequency：200-860MHz

u    Bandwith：8MHz

u    Maximum transmit power：43dBm

u    Data transport speed rate：18Mbps@8MHz

u    Visual transmitting distance：8-20KM

u    Power supply：AC220V or DC12V

u    Figuration：2U standard  19” cabinet

u    Power：120W