Description Features:

SF-8610DATA wireless non-line-of-sight bi-directional data transmission system, is my company's non-line-of-sight (NLOS) two-way data real-time transmission system. Using the current TDD time division orthogonal frequency division multiplexing technology, the channel resources in time through the time slot,share the frequency subcarriers to multiple users through the single frequency points. the system has a relatively narrow frequency bandwidth (5 / 8MHz) and a strong anti-multipath interference capability, to overcome the multi-path reflection and shielding caused by the distress under the simulation technology and conventional modulation technology, to achieve non-line-of-sight environment Bi-directional data of video and audio, especially suitable for the use of complex environments.

Applications:

Can be applied to public security, fire, traffic police, air defense emergency, urban management law enforcement, environmental monitoring, three anti-emergency, water and flood control, power rescue, railway rescue, maritime law enforcement, maritime inspection, customs border, terminal monitoring, forest fire, Military reconnaissance, television broadcast, etc.; suitable for urban, sea, mountain and other complex environments in the wireless two-way data real-time mobile transmission.

Characteristics:

It is suitable for high-speed data transmission,the rate can reach 2~8Mbps,meets the high quality of video audio and data transmission. It includes: text file, office file, audio and video file, shared file; access to the Internet, access to internal network, access and download the database, dial the exchange of telephone, remote maintenance, and so on.

TDD Anti - electromagnetic interference performance:

Compared with the FDD to achieve two-way communication, TDD mode only needs a single frequency, and FDD mode needs multiple single frequency to complete, and these frequencies also need a considerable frequency interval to prevent frequency interference. Multi-carrier compared with the single-carrier frequency domain equalization technology,has anti-long delay and strong multipath ability, more suitable for urban environment.

Equipment application form:

Applied to communication vehicles ~ communication vehicles, communication vehicles ~ command center. Because of the high power and long distance, can make wide range of   mobile two-way data transmission, line of sight can be transmitted to 20 km.

Key features:

L Working frequency band: 300 ~ 800MHz can be ordered

L Single frequency point to achieve non - line - of - sight bi - directional communication

L Supports point-to-point and point-to-multipoint networking

L Two-way transmission characteristics,many types of data transmission; including: two-way video, two-way voice, two-way data communication

L Powerful NLOS non-line-of-sight transmission capability

L Stable transmission of digital signals under high-speed mobile and multipath interference

L Very short coding delay, end to end costs 200 milliseconds

L Transmission rate can reach 2~ 8Mbps

L Output power can reach 10W

L Dual standard Ethernet interface for easy expansion

L Portable installation, plug and play, without too much cumbersome set; using omni-directional antenna, no fixed angle

L System encryption

L Signal strength indicator

L According to customer requirements, various forms can be customized

Details:

Radio frequency modulation part
Working frequency	300～800MHz,fRequency can be customized
Modulation mode	TDD time technology
Channel bandwidth	5/8MHz
Outputpower	5W/10WAdjustable
System part
Data transmission mode	Full duplex
TranSmission pRotocol	Standard TCP / IP, transparent transmission
TYpe of data	10/100Bate-T EThernet adaptive
Data rate	2～8Mbps
Transmission delay	200ms
Bit error rate	≤10-6
Transmission distance	2～10Km(NLOS),5～20Km(LOS)
Receiving sensitivity	-92dBm
Receiving method	Omnidirectional reception
Using mode	External / fixed
Other parts
RF interface	N-type mOther base
Ethernet physical interface	Dual standard RJ45 interface with connection indicator
Signal strength indicator	STATE1,STATE2
Size	2U chassis 485×340×90Mm (L×W×H)
Power supply	AC 220V
Humidity	>95%,Non-condensing
Weight	1.2kg

 

Conventional program Illustration:

    

 

Topology:

Application of the program:

Achieve high-quality video transmission, audio transmission, data transmission; including: text files, office files, audio and video files, shared files; access to the Internet, access to the internal Network, access and download the database, dial and exchange of telephone, remote maintenance and so on the virtual network can achieve the function.

the overall transmission path is: communication command car ~ local command center ~  provincial and municipal command center.Establish a wireless link between communication command vehicles and local command center, through the MAN or WAN transmission to the national provincial and municipal command center, to achieve two-way digital data communication.