This series of equipments latest developed by our company are mainly used in the two direction microwave transmission system of real-time image, voice and data. Using the latest COFDM modulating and error checking technology, they can effectively solve the problems of multipath interference, NLOS path and fast movement that are always met in the process of traditional microwave transmission. They can guarantee high-quality transmission effects, through the complex transmission paths of the lake water net regions, snow conditions and cities of high-rises etc or on the platforms of high-speed vehicles, ships, helicopters / UAVs and so on.
   System receiving end and sending end are equipped with standard all direction antenna which does not require adjustments when used, so it facilitate mobile transmission.

Image I/O interface: analog audio/video signal  AV
                     Digital audio/video signal  SDI

Data I/O interface: low speed data communication RS-232
                    high speed data communication RJ45

Voice I/O interface: digital voice communication RJ11

This type of equipment is mainly vehicular mode, providing with many different frequencies and powers for choice to satisfy demands of utilization in different situations.

Product Characteristics

1. Direct frequency-change technology : 150-900MHz,1.0G-1.7GHz,2.3G-2.7GHz(optional)
2.Multi bandwidth COFDM modulating: 8 /4 //2 MHz(optional)
3. Video compression£ºMPEG-2
4. Manual Keycontrol 14dB  adjustable output power: 800mW-20W,facilitating field change of power and reducing radiation
5. Manual Keycontrol 8 optional channels , facilitating field change of frequency point and avoiding interference
6.Realizing the two direction moving image,,data and voice transmission
7.Supporting high-speed transmission
8. Supporting NLOS transmission
9. Light weight and sturdy construction

Technique Data

High-frequency unit

Operating Frequency                         150-900MHz,1000-1700MHz,2300-2700MHz
Transmitter maximum output power  5W/10W/20W(optional)
Channel bandwidth                            8/4/2 MHz(optional)
Receiver input level                            0dBm - -100 dBm (without LNA )
Antennal interface                              N(model),50

Base Band Unit

OFDM subcarrier number              2K/8K(mode)
Guard time interval                       1/32,1/16,1/8,1/4(optional)
Channel coding                             1/2,2/3,3/4(optional)
Modulating constellation diagram  QPSK/16QAM/64QAM(optional)

System index

Transmission code rate      1.5 -32Mbit/s(adjustable)
Receive threshold level      -99dBm(10-6 BER)
Transmission distance        10W  transmitter module above 10 kilometers(under the NLOS condition)
Move speed                        receive steady at the speed of 200 kilometers mph

Video/Audio parameters

Image format                    PAL or NTSC composite video
Image quality                    meet or exceed DVD effect
Image Resolution              720x576 (pixels)
Compression standards    MPEG-2,4:2:0,MP@ML
Coding rate                       1-20Mbps
Audio in                             (double-track)12dBm
Audio Coding                     728Kbps(Stereo)
Sampling frequency           32KHz
Video/Audio interface        RCA@75(ohm unbalance)

Operating condition

Supply power                         DC12V/15V
Overall power consumption   100W(output power=20W)
Operating temperature          -20greds- +55greds

Other

Control                Users can choose a pre-determined eight channels through the panel
Auxiliary data      150bps-38.4Kbps RS232 data-adaptive (Optional)