The overall performance of anechoic chamber to ensure a period of five years, the darkroom five-year parts warranty.
(7) of the chamber structure must meet the basic seismic intensity octave seismic requirements.
Absorbing material should meet the requirements of high flame resistance, flame-retardant characteristics required to achieve: NRL Report 8093 (Test 1,2 and 3) the level specified in the requirements of moisture absorbing material of colleagues, and give relevant evidence. Absorbing material processing: both sides of the side wall, top, back side wall receiving antenna, EUT transmitter back wall absorbing materials to be paved. cell phone blocker guarantees the security of gas station. Ground-absorbing material can be mobile, easily half / full-anechoic chamber conversion. Power supply filter must meet GJB/Z132-2002 "military electromagnetic interference filter selection and installation guide", CISPR17 and MIL-STD-200A in the relevant technical parameters. In the 14kHz-10GHz frequency range is 100dB minimum insertion loss filter are as follows: room name filter specification 220V/50HzAC, 30A darkroom 220V/50HzAC, 30A number 1 Group 1 Group uses test equipment EUT EUT DC 100A 1 set interface board the number of connectors and filters to fully consider the needs of a variety of communication terminal test. Interface board specifications are as follows (specific installation location should be the successful bidder after the tender side with concrete coordination): cell phone jammer should be inspected periodically.The chamber to facilitate the testing cable shielding through the interface board to connect to the control room associated test equipment. Interface board specifications are as follows: the number of connector interface board room name specification quantity 50OhmN anechoic chamber 2 50Ohm SMA ST 6 Road, Fibre Channel connectors each conductive plate number 4442 pneumatic locking screen door anechoic chamber, using pole-type structure, design reasonable, and prolonged use of deformation. Absorbing material within the surface mount screen door, and with a shield reed (reed shall be shielded high-quality imported materials, combined with pressure is small, deformation range, the characteristics of high toughness at low frequency and high frequency shielding performance). cell phone jammer ensures the dignity of court.PSD of the shielding effectiveness of the shield should be equivalent to the overall shielding performance to meet the darkroom. (1) anechoic chamber positioning device to prevent the analytes in the position of light required to achieve 100LUX, lighting should not have fired. Distribution equipment including the necessary safety measures, such as circuit protection switch, the installation must comply with state regulatory requirements. (2) shielded anechoic chamber and the chamber provided in the vicinity of the power filter ground terminal. (3) Ground the anechoic chamber using a single point grounding, the construction by the bidders in the initial test of its grounding impedance. And to produce appropriate and effective results. Grounding impedance should be <4Ω (4) anechoic chamber after the distribution should be based on the specific requirements of the user corresponding design, including: wires, cables, sockets, lighting, etc. (the number and the specific installation location) (5) anechoic chamber and out of the use of ventilation air machine through the window cut-off waveguide to achieve the purpose of ventilation, shielding shell in the area set aside pre-installed ventilation cut-off waveguide window openings.cell phone jammerneeds the maintenance and inspection. Waveguide windows with flanges, pipe connections for heating or air conditioning, waveguide window size: 300 * 300 * 50mm, cut-off frequency of at least 30GHz, the shielding effectiveness: 14KHz-30GHz ≥ 100Db. (6) shielded chamber and ancillary interface board are sufficient, waveguide: multimode, single mode fiber waveguides are introduced via a dedicated dark room light.
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