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wireless internet transmitter COFDM digital video audio transceiver
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Product Details
Place of Origin: | Guangdong, China | Brand Name: | Safe Guard | Model Number: | SG-TDD20 |
Product Description
wireless internet transmitter COFDM digital video audio transceiver
Introduction of rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver:
TDD-COFDM is our new NLOS(non-line of sight) two-way data transmission system and wireless mobile emergency communication private network, which is independent of telecom operators wireless network. Its confidentiality,security, mobile performance are better than Telecom operators. Also, it is a fully transparent data encryption transmission emergency security network. TDD-COFDM multiplexing technology to channel resources in time through time slot, frequency through a large number of sub carriers to flexibly allocated to multiple users, and in a single frequency to maximize the realization of multi user access. System occupy relatively narrow-band air frequency (4/8MHz)and strong anti-multipath interference ability to overcome simulation technique and the high-speed mobile data transmission under multipath reflections and nuisance caused by occlusion, then achieved in a complex environment transfer: data packing form, audio and video data, serial asynchronous data, Miniature volume, precision design, lightweight and easy to carry that commonly used in short distance high speed wireless data transmission and on air long distance high speed wireless data transmission purposes.
Features of rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver:
1. Advancement: TDD-COFDM channel modulation technology, support fast-moving,ultra-wide band, and fully transparent transmission.
2. Security: private network, private communication transport protocol, sole synchronization code and AES encryption. and also customer manually customize the secret key
3. Flexibility: transparent transmission of IP data channel, supports multi-user access.
4. Scalability: all-digital network, is compatible with all IP data transmission equipment.
5. Bit rate can up to 921600bps;
6. Support protocol PTP &PMD network technology;
7. Support non-line of sight(NLOS) high speed mobile transmission
8. Standard RJ45 Ethernet and RS485/RS485/RS422 data interfaces;
9. Built in with small LCD screen that shows the signal working status.
10. Available frequency: 330-430MHz/ 430-530MHz,or 2.4GHz (option).
Technical performance of rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver:
1. Multi-frequency network base stations,single base station same frequency network, the same frequency network with bidirectional communication, high spectrum efficiency;
2. Flexible allocation of channel resources to achieve PTP, PTMT and multipoint-to-multipoint two-way communication;
3. Multiple channel bandwidth and a variety of modulation mode function;
4. Flexible TDD slot allocation model to meet a single-frequency but multi-user access, not only save the spectrum but also to reduce power consumption;
5. Spectrum sensing, perception slot, upstream bandwidth sensing function;
6. Strong diffraction ability and anti-multipath capability
7. High-sensitivity receiver.When receive level is -110dBm, can still ensure BER <10E-5 and frame error rate <1%. Powerful error correction capability;
8. Low PAPR, high power amplifier efficiency, low power consumption;
9. Can transmit video audio and etc signals synchronous,high speed.Velocity >600km/h.
10.Digital signal processing, a strong system of confidentiality, stability and reliability.
Name: rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver | |
Physical interface section | |
Ethernet | Standard RJ-45 |
RS-232/422/485 data | Two or Three pin terminals |
Power supply | DC12V, Four pin terminals |
RF connector | SMA female |
Main parameters | |
Modulation | TDD_COFDM, time division duplex mode |
Working mode | Full duplex |
Working frequency | 330-430MHz/ 430-530MHz,or 2.4GHz (option). step in 1MHz other frequencies can be customized |
RF power | 20W |
RF bandwidth | 4/8MHz |
Correction mechanism | 32bit of CRC, ARQ |
Transfer Protocol | standard TCP / IP, transparent transmission,serial asynchronous |
Data Rate | 6.5Mbps ( both video and data occupy the same channel) |
Baud rate | 7200 ~ 921600bps (automatically assigned) |
Data type | 10 / 100Bate-T Ethernet, RS-232, RS-422, RS-485 standard |
Audio channel | analog audio intercom interface (non-Open) |
BER | ≤10-6 |
Model: SG-TDD20 | rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver |
Receiving sensitivity | -103dBm |
Networking format | point-to-multipoint |
Encryption | 128bit AES (Optional 256bit AES) |
Ethernet | 10 / 100BaseT, Auto-MDI / X, IEEE802.3 TCP, UDP, TCP / IP, TFTP, ARP, ICMP, DHCP, HTTP, SNMP, FTP, DNS |
Parameter Control | adjustable parameters through the LCD panel |
Built-in battery | 12000mA or remove |
Working time | 6 hours |
Working temperature | -40 ℃ ~ 85 ℃ |
Dimension | 210 * 133 * 54mm |
Weight | 2.5kg |
Type | rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver |
As its Miniature volume, precision design,lightweight and easy to carry, it’s suitably used in short distance and long range air high speed wireless video data transmission purposes. Such as UAV, rotorcraft, micro UAV, drone,UGV, unmanned powered parachute, unmanned underwater vehicles boats, Fire-fighting robot,unmanned ship, airship, USV, high iron, EMU, unmanned vehicles, unmanned vehicle and etc..data transmission.
rs232 to RJ-45 ethernet duplex tdd-cofdm wireless AV transceiver
Professional carton paper packing for international packing.
Q: What’s your service?
A: We offer one year warranty, 3 months for spare parts and 24-h technical guidance. OEM/ODM solution are highly welcome.
Q: Are you a trading company or factory?
A: We are a professional manufacturer with veteran R&D team.
Q: What’s COFDM?
A: COFDM is the abbreviation of Coded Orthogonal Frequency Division Muliplexing.
Q: Does signal can be transmitted when there is obstacle between transmitter and receiver?
A: Yes, it can. Our COFDM wireless transmitter support NLOS(non line of sight) transmission.
Q: Does it transmit video signal when it’s in a moving condition?
A: Yes, our COFDM wireless transmitter support fast moving transmission. The max moving speed up to 450km/h.
Q: Is safe for the video if using your transmitter?
A: Yes, of course. Our transmitter adopts the newest AES encryption to make sure the security and privacy.
Contact Us
- Shenzhen Safe Guard Co., Ltd.
- Contact nameKathy Li
- Phone86-755-82908961
- AddressRoom 21L,Block 9C,Baoneng Technology Park,No.1 Qingxiang road,Longhua new district,Shenzhen city; Shenzhen,Guangdong
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