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Electromagnetic reverberation chamber | BJ-7900

For consumer electronic devices Sub 6GHz OTA test

For mass production test application

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Application 

● BJ-7900, an electromagnetic reverberation chamber, is used for FATP OTA test on the 0.7~6GHz range

● Comparing with the traditional stirrer solution, it can achieve a stronger and larger uniform field by multiple test probes. So it can support multiple DUTs test in parallel with little variance


Main features 

● Support wireless communication test, coupling test, OTA test

● 4pcs DUT/box test in parallel, double the test efficiency

● High efficient acquisition algorithm for processing the TRP with multiple test probes, instead of adjusting the antenna position by products. Achieve ±1dB accuracy

● Support TX, RSSI, BER, BLER，FER, EVM, RSE and other test indicators

● EMI filter on all data lines

● Wireless communication with DUT. Avoid the USB impact to the antenna frequency response

● Manual or RS-232C/remote operation, suitable for automation line

● Anti-pinch safety device, forced to open the drawer in case of resistance


Mechanical Specification

Operation Mechanism

Manual Operation

Outer Dimension (Cabinet)

660(W) * 1113(D) * 1960(H)mm

Outer Dimension (Box)

660(W) * 600(D) * 1000(H)mm

Internal Dimension (Box)

560(W) * 830(D) * 594(H)mm

Door Opening Dimension (Cabinet)

660(W) * 1513(D) * 1960(H)mm

Door Dimension

407(W) * 115(H)mm

Open-close way

Pneumatic control

Color

Computer white

Weight 

approx. 203kg


Test Software Platform

● Support for all 5G FR1 Sub-6 GHz，LTE TDD/ FDD and other legacy 2G/3G technologies

● Support wireless technologies, including Wi-Fi (802.11a/ac/ax/b/g/n), Bluetooth, Zigbee, and the popular navigational technologies