• Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex System 1
  • Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex System 2
  • Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex System 3
Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex

Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex

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Loading Port:
Guangzhou
Payment Terms:
TT OR LC
Min Order Qty:
1 set
Supply Capability:
500 set/month

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Specification

Brand Name:
Safe Guard
Model Number:
SG-TDD20
Modulation:
TDD_COFDM, time division duplex mode
RF power:
20W
RF bandwidth:
4/8MHz
Baud rate:
7200 ~ 921600bps (adjustable)
Correction mechanism:
32bit of CRC, ARQ
Encryption:
128bit AES (Optional 256bit AES)
Dimension:
210 * 133 * 54mm
Weight:
2.5kg
Customization:
All features can be changed as your prefer!


Model: SG-TDD20

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 that is better than Telecom operators. Also is a fully transparent data encryption transmission emergency security network.


Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex



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. Channel into the AES128bit, and user manually customize key that strength to ensure the data encryption. 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.


Wireless rf Ethernet Transceiver TDD-COFDM Full Duplex






Main Features


+ Support protocol PTP &PMD network technology;
+ Support non-line of sight(NLOS) high speed mobile transmission
+ Bit rate can up to 921600bps;
+ AES 128-bit encryption, and also customer manually customize the secret key.
+ Standard RJ45 Ethernet and RS485/RS485/RS422 data interfaces;
+ Built in with small LCD screen that shows the signal working status. 
+ Available frequency: 330-430MHz/ 430-530MHz, or 2.4GHz (option). 





Product Parameters


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

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




About our specification:

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.
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. Technical performance:
- Multi-frequency network base stations, single base station same frequency network, the same frequency network with bidirectional communication, high spectrum efficiency;

- Flexible allocation of channel resources to achieve PTP, PTMT and multipoint-to-multipoint two-way communication;

- Multiple channel bandwidth and a variety of modulation mode function;

- 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;

- Spectrum sensing, perception slot, upstream bandwidth sensing function;

- Strong diffraction ability and anti-multipath capability

- High-sensitivity receiver. When receive level is -110dBm, can still ensure BER<10E-5 and frame error rate <1%. Powerful error correction capability;

- Low PAPR, high power amplifier efficiency, low power consumption;

- Can transmit video audio and etc signals synchronous,high speed.Velocity >600km/h.

- Digital signal processing, a strong system of confidentiality, stability and reliability.





Product Application


As its Miniature volume, precision design, lightweight and easy to carry, suitable 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.






Our Services

One year free warranty;
Three months for free spare parts (Replacement parts will be charged after a year);
24-h technical guidance;
One-stop ODM/OEM solution;
We provide professional system design and construction;
We have over 15 years experience's study, design and manufacturing in wireless microwave transmission area;
We are the professional plant source,so we can provide you high quality in best price.


Q: Security monitoring project 755 transmission distance can reach 500 meters?
The key is: what about the scene? Is there any interference? If absolutely no interference, you can use 75-7 or 75-5 of good quality, but must not be in the middle of joints. During construction, make sure the cable is good and no broken skin is allowed. If there is interference, there will be too many modes of transmission.
Q: What should we pay attention to when we buy the security monitoring system?
Matters needing attention1, the camera's clarity of choiceIs the webcam for the HD surveillance system 1 million or 1 million 300 thousand, 2 million or 3 million?2, what brand of monitoring equipment?Budget and higher requirements can choose well-known brands, if it is a private enterprise, and the limited budget, also can use other domestic brands, such as Shenzhen brand price than the well-known brand beyond count, cheaper, function is similar.
Q: I just do business, security monitoring project, I do not know how to live and run project, please predecessors generous with your criticism!!! Thank you
1, through the relationship network, let your old and new friends give you a platform.2, if there is no better network of relations, we must strengthen publicity, so that social recognition, with knowledge, technology, speak.However, we do the service industry, the most important thing is attitude and after-sales service.
Q: What's the profit of security monitoring project?
But profits in about 30% can do, but after a year, or included in the 30% from inside it is hard to sayThe investment is approximately as follows:Pavement decoration twenty thousandAbout five thousand of the sample facilities (CCTV, TV and video host), one for computer monitoring and one for acquisition card;About five thousand samples (all types and accessories, accessories should be complete), commonly used models must be properly prepared...
Q: What does security system include?
(9) elevator five party alarm system;(10) centralized management system for keysFrom the classification dependency relationship:Security systems include:(1) power environment monitoring subsystem.(2) video surveillance subsystem;(3) alarm subsystem;(4) guard patrol system;(5) voice intercom subsystem;(6) audio-visual broadcast subsystem;(7) intelligent analysis subsystem;(8) perimeter guard subsystem;(9) locating and tracking subsystem;
Q: What is the front end product of security?
Front end: for example, you have a project to load the ball machine, one machine, and the like. This is the front end product. Back end: for example, you need to install the monitor, DVR ah, the class is the back-end
Q: What's the outlook of the security industry?
The process of technology development in security industry:We use graph to describe the general development process of security technology in the last forty years.The graph briefly describes the technology development process of the security industry in the past forty years, and analyzes the basic five sub industry cameras, pan tilt lens control, video recording, information transmission, detection and alarm. These five sub sectors are listed horizontally. And vertical is along the track of time, from 70s security industry just started in the era, until now, to the end of 2011 security Expo express the trend.
Q: What's the difference between security and surveillance?
Security refers to security and protection, including infrared alarm system and access control, monitoring and so on.
Q: Younger brother want to set up shop, security products and smart home prospects which is better? Please do simple analysis. In addition, such as setting up procedures to do what? What's special about this industry? Is the technology difficult to master? And other considerations. Please have this particular experience in the us.PS: I can say nothing about the two trades.Baidu please do not delete posts, I do not think there is anything wrong with this post, why delete me many times? StopWhy are there so few people answering?
You don't know anything about the two items, are you ready to do that? Business is hard to say. No matter what you do, the market survey analysis is essential, product positioning, store location will directly affect the store sales
Q: Does security monitoring belong to electronic products? What kind of goods does he belong to?
Hello, security monitoring belongs to the public security industry, of course, is also electronic products, research and development is mainly the it industry.

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