Cuming-Lehman Chambers
Cuming-Lehman Chambers specializes in the design and construction of RF shielded anechoic chambers for the commercial and defense markets. Our staff has the expertise and dedication to provide quality turnkey anechoic chamber facilities for EMC and high frequency applications. Along with the different types of chambers that we offer, we can put together complete measurement systems to include instrumentation and software. With over fifty years of construction experience, our company has built a solid reputation of completing our projects on time and within budget. Our company was established as a general construction firm, we’re capable of building host building structures to house our anechoic chambers.
- 508-521-6700
- 508) 584-2309
- cmcsales@ppg.com
- 5800 264 Bodwell Street
Avon, Massachusetts 02322
United States
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RFID Chamber
An RFID chamber is a special room or cabinet designed to test the performance and accuracy of Radio Frequency Identification (RFID) tags and systems.
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Near-field Chambers
Most antenna measurements need to be carried out in the far field; that is, the test antenna should be illuminated by a plane wave. Typically this is carried out by providing sufficient separation between the source and the AUT so the spherical wave approaches a plane-wave character.
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Compact Range Chambers
Most antenna measurements need to be carried out in the far field; that is, the test antenna should be illuminated by a plane wave. Typically this is carried out by providing sufficient separation between the source and the AUT so the spherical wave approaches a plane-wave character.
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MIL-STD 461 & DO-160 Chambers
Cuming-Lehman Chambers MIL-STD 461E/F test chamber is specially designed for testing in accordance with the military standard.
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EMC Retrofits and Relocations
Our services also include upgrades of existing chambers to meet current EMC standards and relocations of chambers from one site to another.
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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.
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High Frequency Retrofits and Relocations
Our services also include upgrades of existing HF chambers to meet new program requirements, absorber installations, and relocations of chambers from one site to another.
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Pre-Scan Emissions/Immunity Chambers
3m pre-scan Immunity/Emissions semi-anechoic chambers are designed to perform ANSI C63.4/CISPR 16-1-4 and IEC 61000-4-3 compliant radiated immunity and emissions measurements. When using this chamber for ANSI C63.4 pre-compliant radiated emissions pre-scan measurements there’s a limited scan height.
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Antenna Measurement Chambers
Antenna measurement chambers can be utilized to make far-field antenna pattern measurements. These chambers are designed either in a rectangular or tapered configuration depending on the frequency range of interest.
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Three Meter Fully Compliant Chambers
3 Meter Fully Compliant semi-anechoic chambers offer semi-anechoic radiated emissions (RE) and fully anechoic radiated immunity (RI) compliance test capability for most international EMC compliance regulations.
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Small Test Boxes
In today’s environment a small specific test box may be needed to test a component, perform R&D or simply tweak your product. Cuming Lehman Chambers has the ability to custom design and construct a precise test box to meet your specific needs.
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PIM Chamber
Passive Intermodulation (PIM) occurs when two or more signals are present in a passive device (cable, connector, isolator, switch, etc.) that exhibits a nonlinear response.
