Electromagnetic interference/EMI is a problem that must be faced and restrained in the entire electronic field. Commonly used in wireless communication products: mobile phones, wireless network cards, wireless routers, wireless headsets, Bluetooth headsets, wi-fi, WiMAX, data cards, walkie-talkies, RFID, RC Drone, POS machine. In the process of board testing and final testing, wireless communication equipment and wireless communication modules are used to improve the RF test environment by using the RF test shielding enclosures or chambers.
Osprey could provide customized solutions against client's request. Our signal isolating cabinets with other dimensions and interfaces can be designed according to customer's individual requirements at any time. Sound isolation or signal blocking with different body material(metal sheet, aluminum sheet) and inside absorber material or different body size is against client's request. Whatever you need it, we can build it. Furthermore, RF-absorber mats, ferrite absorbers, infrared windows, ventilation (fans), lockings (for the padlock), etc will be integrated into our RF shielded boxes on request.
Signal blocking enclosures or rf faraday cage without breaking hole design (Filter, SMA holes excluded), the frequency band is 1GHz ~ 6GHz, isolation is more than 80dB. Shielded box opened and closed is controlled by the manual button or through RS232 interface communication command. The rf shielding chamber or enclosures opens way is to take a large angle clamshell to facilitate operation. To prevent the hand grip design avoids industrial safety accident. In accordance with testing requirements can choose to use different filter interface.
Mobile phone coupling Testing
In order to ensure the production quality of the products in the production process, the coupling test of the antennas is often performed. The test device to be used is that the coupling test fixture is connected to the integrated tester, and the mobile phone is fixed on the fixture. In the early stage of production, according to the test results of several prototypes, a reasonable coupling compensation value is given, a power standard is determined, and then the maximum power of the mobile phone is tested. Above this power standard, the product meets the production requirements, which is lower than this requirement. There is a problem with the antenna and related devices. The following problems can be found through the antenna coupling test:
WIFI Throughput Testing
Various DUT shall put into the upper cell and motherboard with rf cable, attenuator and the network cards into the lower cell to start the WIFI throughput testing. The analysis and verification of the WIFI equipment throughput test and the mass production phase can be carried out in the shielding box to shield the influence of various wireless signals, especially the channel congestion caused by the influence of Wi-Fi co-frequency and adjacent-frequency signals. The theoretical rate is reduced in the current environment; The attenuator can be used to simulate the actual distance (regardless of multipath, signal fading effects), but this "distance simulation" is based on the antenna gain of the auxiliary test Wi-Fi device (AP/STA). Under the premise of “XXdBi”, this solution can meet the RF shielding requirements of wireless products. It can provide a highly efficient isolated test environment for wireless communication and cooperate with production line stability test, automated robot test, large-scale conformance test.
WIFI POWER TESTING
The RF test process is usually the most complex and influential process in the line of wireless communication equipment and is often the bottleneck of the production line. The RF test station usually consists of several parts, such as test instruments, shielding boxes, and test software. It can usually be divided into calibration test, comprehensive test, and antenna test. Due to the request for capacity, the RF test process is usually run in parallel by multiple identical test stations. The passing rate of one or some test stations is low; the decrease in output will lead to a bottleneck in the production line and a sharp increase in the cost of consumption. The reason can be roughly divided into product design or material reason, test problem (error) Environmental problems such as measurement problems), radio frequency interference, and uncertainties in testing.
GNSS
testing covers a broad range of applications, from validation and certification of equipment and applications to support R&D activities, either in laboratory or in real environments (e.g. field testing or data collection).
