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Ets/lindgren 5211 wireless interface test system
ETS/Lindgren 5211 Wireless Interface Test System Used
Model/Part No:5211 Our Item ID: 4994
ETS/Lindgren 5211 Wireless Interface Test System
The ETS Model 5211 Wireless Interface Test System, (WITS ), is a self-contained portable enclosure that can check cell phone transmit and receive functionality with or without direct cable connection to the RF or data ports.
This is accomplished using a patent-pending near field coupler in the enclosure that couples with the phone s own antenna. The coupling coefficient has a flat response over the frequency range of 700 MHz 2 GHz.
With this (CAI), or common air interface, the operator performs the test faster and simulates a real-world environment. In contrast, the direct connection method bypasses the antenna and adds up to several dB of loss to the measurement. The CAI method provides a shorter signal path and readily detects a faulty antenna. (A connector is provided for testing with a direct connection if desired.) To eliminate nulls and hot spots, each enclosure is lined with ETS-Lindgren RF absorber, which improves test repeatability. Compressible RF gasketing is used to seal the lid on closure. Nominal shielding effectiveness > 80 dB, although higher values are possible.
Consistent orientation of the phone in the enclosure is important for test repeatability. To help the operator position the phone correctly, a sliding clamp and alignment post are built into the bottom of the enclosure. The base is also marked with an illustration of a typical phone position. The enclosure includes one external Type-N connector, which links the antenna coupler to the test set; one Type-N connector feed through for traditional direct connection testing; and a 9-pin filtered D-sub connector for more advanced test procedures.
Click Here to visit the manufacturer's website.
Note: Typical, to resonant dipole 1 in. from coupler surface.
Typical Coupling Factor Repeatability
Typical Internal RF Absorption
Item Tested?: Not testedPhysical Condition: Good; Working Condition: Not Tested or Unable to Test20 | 20x 20x16 | 1
