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External Passive Intermodulation (PIM)

Passive intermodulation (PIM) is a problem for network operators that is not going away anytime soon.  In fact, it’s getting worse. To review, PIM is interference created when the transmit signals at a site mix at “non-linear” objects in the RF path and generate new frequencies.  If these new frequencies fall in an operator’s uplink […]
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Multi-Function Mounting System

ConcealFab’s PIM Shield® Multi-Function Mounting System provides a low-cost, low PIM method to secure cables to round or angle members at cell sites. LEARN MORE HERE
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Interference Mitigation Solutions

Mitigate external passive intermodulation (PIM) at your cell sites with our collection of innovative products and solutions featured in our new Interference Product Guide. Get an in-depth look at common causes of external PIM as well as a wide variety of PIM solutions available to deploy and improve performance at your sites. VIEW THE INTERFERENCE […]
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PIM Hygiene In Cell Sites

With vast experience conducting external PIM hunts in the field, ConcealFab has identified the most common sources of external PIM found in the high-risk PIM zone near antennas at cell sites. The PIM Hygiene application note identifies the most common PIM sources encountered and provides solutions for mitigation. In addition to the obvious problems, such […]
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New Radiated PIM Testing Standard Expected From IEC

Characterizing the Passive Intermodulation (PIM) performance of mechanical objects like brackets has presented designers with a new radiated PIM testing and measurement challenge.  How do you verify if a bracket design is low PIM when a bracket does not have Radio Frequency (RF) connectors for injecting PIM test signals?   A working group within the International […]
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Concealment Performance over CBRS & C-Band Spectrums

ConcealFab’s latest white paper presents measurements and performance of our concealment materials over the CBRS / C-Band frequency range as well as several concealment designs manufactured using these materials. With an in-house anechoic chamber and RF and mmW test equipment, concealment materials from sub-6 GHz to mmW frequency bands are extensively tested. Placing various concealment […]
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Modular Screenwall System

ConcealFab has developed an innovative screenwall system that has been refined over the years with deployments across the globe. The system has been used in support of traditional commercial screenwalls as well as rooftop systems supporting the US Government at home and overseas. Equipped with clearWave™, our concealment panels have been extensively tested in our […]
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External PIM Concerns in C-Band Networks

Passive intermodulation (PIM) interference is a real concern in C-band spectrum due to the many IM2, IM3, and IM5 products that can be generated by the existing low and mid-band downlinks at cell sites. These low-order IM products can elevate the noise floor reducing the speed and coverage of newly deployed networks. Solutions to mitigate […]
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Optimized Infrastructure For Fast Site Approvals

Our newly designed 2021 Infrastructure Product Guide presents the latest innovations in Poles and Sub-6 GHz and mmW attachments. Our comprehensive portfolio features a versatile collection of infrastructure solutions designed to serve cities and municipalities across the country regardless of the project- whether it’s offering concealment at sports or entertainment venues or deploying poles in […]
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Fit for Samsung 5G

Our new Samsung Product Line is readily equipped to house your Samsung radios and expand your networks to more places than ever. Exclusively designed to meet the unique requirements of Samsung radio equipment, our product line blends in tastefully with the cityscape to deploy your networks quickly and bring your 5G connections to more places. […]
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