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Nextivity Launches CEL-FI GO G41 3G/4G/5G Smart Signal Booster for TDD and FDD

New smart signal booster features multi-band support and provides a flexible solution to Nextivity’s network of global installation partners

Nextivity today launched the CEL-FI GO G41 Smart Signal Booster at Mobile World Congress 2021 (MWC21), the first carrier-class 3G/4G/5G cellular coverage solution to boost Time Division Duplex (TDD) for business and residential applications. CEL-FI GO G41 also offers multi-band support and features industry-leading 100 dB system gain and Nextivity’s unconditionally network safe with a no noise guarantee.

“Our global partners share our commitment to providing the in-building cellular coverage customers need to be efficient,” says Werner Sievers, CEO of Nextivity. “The new CEL-FI GO G41 offers our network of installation partners in EMEA, Asia, and Oceania an opportunity to differentiate their solutions and services given the unique capability to boost TDD. Its multi-band support also caters to the needs and regulations of each region today and in the future as carrier needs and markets evolve.”

The CEL-FI GO G41 Smart Signal Booster uses Nextivity’s award-winning Intelliboost® signal processing to deliver the industry’s largest coverage footprint with the best voice and data wireless performance, while its capability to boost TDD leads to an improvement in the end-user experience. CEL-FI GO G41 does not interfere with other wireless devices and is available in kitted options or standalone. This multi-band solution is ideal for use in commercial properties, government buildings, small manufacturing operations, agricultural settings, rural areas, IoT applications, businesses, and homes for up to 3,000 m2 per system. A variety of CEL-FI donor and server antennas can be used based on environmental needs.

“Integrator partners can take comfort that the new CEL-FI GO G41, like other CEL-FI products, is fully ACMA compliant in Australia and approved by operators for multiple bands,” says Tom Cooper, VP of Sales, Oceania at Nextivity. “Its capability to boost TDD and support multiple bands provides greater flexibility for partners to solve all of their customers’ coverage challenges with one single unit across a wider variety of applications.”

“CEL-FI solutions and their network safe capability have been well established within our integrator and user community for many years,” says Colin Abrey, VP of Sales for Nextivity in EMEA. “We are seeing an increasing interest from our customers to be able to benefit from CEL-FI’s unique advanced features in the TDD bands. The CEL-FI GO G41 demonstrates we are listening to our customers while increasing flexibility and adding live remote monitoring to the GO range.”

Key Benefits

  • Superior performance: 100dB max gain with IntelliBoost
  • Multi-carrier support with carrier switching
  • Multi-user TDD and FDD support
  • Carrier approved for 3G/4G/5G for voice and data
  • Unconditionally network safe
  • SMA antenna connectors
  • CEL-FI WAVE management platform

“We are seeing an increased demand for the ability to boost TDD, and the CEL-FI GO G41 is our response to staying on top of our integrator partners’ needs,” says Wai-Leng Cheong, VP of Sales, Asia Pacific at Nextivity. “The GO G41 provides greater flexibility to our integrator partners who want to solve their customers’ coverage challenges with one solution and make it easier and more efficient to provide a reliable, consistent signal for a variety of applications.”


The CEL-FI GO G41 Smart Signal Booster will soon be available in four versions to accommodate the bands required for deployments in Asia, Europe, Africa, the Middle East, and Oceania. Integrators can purchase CEL-FI GO G41 via Nextivity’s master distributors, while end customers can buy through Nextivity’s network of resellers. CEL-FI QUATRA GO G41 is regulatory-approved and meets strict license exemption rules in multiple countries including Australia, UK, Ireland and others.