Anechoic Boxes
enclosures that dampen rf or sound reflection within and stop exterior noise.
See Also: Anechoic Enclosures, Boxes
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Electromagnetic anechoic box/Shield box/Anechoic chamber
The necessity of a wireless system test has risen by the spread of recent wireless telecommunication equipment as shown in cellular phone, wireless LAN, RF-ID tag and ETC (Electronic Toll Collection system). It is necessary for a wireless test to be performed in anechoic environment in which an external noise is intercepted and a radio wave does not reflect internally. An anechoic chamber (room version of a shield box) is proper facilities but needs a wide space and a huge cost. Especially, the equipment under wireless system test on the production line can not radiate any signal radio wave outside before approval. The shield box satisfies these conditions.
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Hand-In Type Electromagnetic Anechoic Box (Shield Box)
MY3710HS
Higher shielding performance than MY371080dB. Suitable for weak electric field resistance test, out-of-service test or digital forensics for mobile phone, smart phone or tablet terminal! DUT can be operated directly with bare hands while placing it in the box and looking at the inside from the shield window.
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Hand-In Type Electromagnetic Anechoic Box (Shield Box)
MY3720
Suitable for weak electric field resistance test, out-of-service test or digital forensics for smart phone, tablet terminal or mobile PC ! !DUT can be operated directly with bare hands while placing it in the box and looking at the inside from the shield window.
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Advanced Reconfigurable Modular OTA RF Test Enclosures, ≥100 DB Isolation, 300 MHz - 90 GHz
dbSAFE ARMOR
The dbSAFE ARMOR series of shielded boxes are cost-effective solutions for OTA testing in the mmWave spectrum. Providing a shielded, fully anechoic test environment, these RF test enclosures ensure stable and repeatable measurements over a wide frequency range (from 300 MHz to 90 GHz).
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Anechoic Chamber
Wedge:The acoustic absorptivity of sound-absorbing materials used in anechoic chamber must be greater than 0.99. In anechoic chamber, gradient absorption layer, wedge or conical structure are often applied with glass wool and flexible foam as its sound-absorging materials. Anechoic Door: The design of rotatable door can affect the whole function of anechoic chamber. Therefore, it's crucial to combine steel plate and sound-absorbing cotton in the door, which is exactly our design.Acoustic Insulat...show more -
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Anechoic Chamber
Beijing KeHuan Century EMC Technology Co,.LTD
(7m × 4m × 3m) RF shielding EMC laboratory (anechoic chamber) is constructed by attaching ferrite tiles and microwave absorbing materials after the RF shielding room is built (7m × 4m × 3m) The simple 3m test distance EMC laboratory can perform EMC tests in the frequency range of 30MHz-18GHz.
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Anechoic Chamber
EMC-3
A 3 meter test range ensuring fully compliant Emission and Immunity testing. Ferrite and hybrid pyramidal absorbers are combined in a unique pattern within a SmartShield high performance chamber. Operating at a 3m test distance, this chamber is compliant to CISPR-16 with a measurement zone diameter of 1-2 meters.
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Anechoic chambers
The anechoic chambers are built up as a modular construction. Due to individual modules any size of chamber can be manufactured. Big chambers may require an outer supporting structure or alternatively the shielding material can be attached direct to the building. The absorbers are fixed to rails bars or wooden base construction which is inserted into the shielding modules.
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Anechoic Chambers
Eckel Noise Control Technologies
Anechoic Chambers are echo-free enclosures with a sound energy absorption level of 99% to 100%, or a reflected sound pressure level of 10% or less. The frequency at which the energy absorption drops below 99%, or the pressure reflection exceeds 10%, is known as the low-frequency cut-off. Sound absorption is obtained by lining the walls, ceilings, and floor with wedges or other sound absorbing elements or SuperSoft panels, depending on performance level required and cut-off desired.
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Breakout Boxes
D Series
The D Series Breakout Boxes incorporate a printed circuit board for all connectivity. D Series Breakout Boxes use a color coding scheme as an aid. The Red jacks connect to the Red TP Side connector with pin contacts and the Black jacks connect to the Black TP Side connector with socket contacts.
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Decade Boxes
Time Electronics manufacture a complete range of decade boxes, designed for resistance, capacitance, and inductance. These precision instruments cover the requirements of both field and laboratory work, and are commonly used in educational establishments.
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Decade Boxes
L C R
PGP Electronics Private Limited
PGP Electronics offers wide range of decade boxes for Inductance, Capacitance and Resistance. These decade boxes offer you a greater flexibility in attaining the required component value and are designed to withstand rugged operation.
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DI Boxes
Applied Research and Technolgy
Instrument DIs for stage and studio, plus specialized tools to connect virtually any source to a mixer, interface, or PA.
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Junction Boxes
VPG Transducers created one of the largest load cell and transducer manufacturers in the world when we brought decades of weighing and force measurement experience under one roof. By harnessing the power of our collective expertise and experience in advanced strain gage technology, we are able to continuously challenge the status quo. As trusted partners, we are committed to providing world-class solutions that meet your needs.
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Junction Boxes
Junction boxes are used for complex power and signal distribution. The junction boxes have redundant mechanical barriers. The mechanical integrity of the junction box is verified during helium leak testing and hydrostatic testing of the jumper assembly. Thermal and pressure compensation is provided by the radially compliant hose or by purpose built bladder compensators, hose lengths must be sized according to the junction box internal dead volume.
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Junction Boxes
Procter & Chester Measurements Ltd
The function of a strain gauge active junction box is to enable easy adjustment of strain gauge (output) manufacturing tolerances without any channel interaction to give a summated output.
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Shield Boxes
Concentric Technology Solutions, Inc.
CTS can provide a customized integrated RF Shield Box or RF Enclosure Test Solution for manual or automatic testing at an off-the-shelf solution price. Many companies make RF Shield boxes, RF Enclosures or DUT fixtures, but only CTS bridges the gap by providing a complete integrated RF Shield Box or RF Enclosure testing solution for providing the RF shielding needed for repeatability within your budget and schedule.
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Shield Boxes
Shenzhen Tojoin Communication Technology Co., Ltd.
1: Make a ideal solutions for bluetooth, wifi, 4G phones test 2: High isolation 3: Easy & Flexible operation
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Wiring Boxes
Radio receiver for heating / cooling systems equipped with an integrated antenna, an output with SPDT relay and an RS485 Modbus® RTU slave communication port.
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Anechoic Chamber Filters
RF leakage through Ethernet and USB cables can destroy even the best RF enclosures and chambers. The need for filtering in the ever congested RF environment requires special filters that can pass USB 2.0 and 10/100/1000 Mbps Ethernet signals and filter out unwanted higher frequencies such as cellular and WiFi. The Adaura Technologies USB/Gigabit Filters provide one GigE and one USB 2.0 pass-through connections while filtering out other RF up to 8GHz. It has a small form factor to allow easy installation. It is a most cost effective solution for a clean chamber set up. In a typical chamber, WiFi signals are reduced to <-100dBm with this filter installed.
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Compact Anechoic Chambers
If you have mmmwave or THz antenna phased-array that require Over the Air measurements, MilliBox has the equipment and tools that you need. With the help of MilliBox compact anechoic chamber system, you can plot radiation pattern , collect data from those plots, and assess your antenna performance easily and precisely.
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Tapered Anechoic Chamber
It’s nearly impossible to perform VHF/UHF measurements in a rectangular chamber. In the 1960’s Emerson determined that tapering one end of an Anechoic Chamber would cause the chamber to act like an indoor ground reflection range.Tapered Chambers work very well at the lower frequencies. Their design forms a uniform illumination across the test region. The tapered end of the chamber forces the wall images close together forming a source antenna array. Tapered Chambers are usually a less expensive option compared to rectangular antenna measurement chambers or compact ranges.
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Chambers and Glove Boxes
Standard Environments: ETS' multi-purpose benchtop units for laboratory and production use are large enough to accommodate testing and fabrication, as well as storage of materials, test equipment, and assemblies, yet they are small enough to fit on a standard workbench. The systems are able to independently maintain humidity from <5% to >95% RH and temperature from -22F to 122F (-35 to 50C) when unit is placed in an ambient environment location.
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Custom Breakout Boxes
Silver Engineering, Inc. has also provided many different forms of custom breakout boxes and adaptor cables to our customers. If you need something special, contact us.
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Decade Resistance Boxes
The range of resistance decade boxes includes 5, 6 and 8 decade boxes which are designed to provide highly accurate and variable standard values of resistance and current for calibration, comparison and test applications in electrical and electronic workshops, test laboratories and educational environments
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Decade Resistance Boxes
A range of units to cover the requirements of development laboratories and calibration and test departments. High resistance instruments provide reliable calibration of insulation testers.
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Fiber Demarcation Boxes
Integrate FTTX activities into a small and compact wall mount enclosure, providing a safe space to splice, split, distribute, store, and cross-connect fiber optic. Mexfoserv® has a large variety of models available to fit our customers’ needs and specifications, ranging from size, amount of ports, moist and dust protection, indoor and outdoor models, different cable acceptance diameters, among others.
