Anritsu tests private 5G for STech in Japan
- September 24, 2025
- Steve Rogerson

Tokyo-based Sojitz Tech-Innovation (STech) has selected Anritsu’s Field Master Pro MS2090A handheld spectrum analyser to evaluate the wireless quality of its private 5G platforms aimed at the Japanese market.
The MS2090A has a track record in private 5G verification experiments conducted by Japan’s Ministry of Internal Affairs & Communications, earning marks for its reliability, performance and operability, factors that led to its selection. By leveraging the MS2090A, STech can verify compliance with Japan’s Radio Act, manage wireless quality and troubleshoot issues.
The barriers to introducing private 5G networks are gradually being eliminated by deregulating the sharing of private 5G basestations and simplifying licensing. However, operational complexities persist. To address this, STech has introduced a private 5G LAN from Celona, a US-based specialist in enterprise 5G, to the Japanese market. The platform provides all the core functions required for private 5G, simplifying optimisation from deployment to operation.
A strength is organisations can manage the 5G mobile network as easily as wifi, without needing advanced technical knowledge. Even so, growing the Japanese market required addressing challenges such as compliance with the Radio Act and assuring wireless quality. To meet these needs, STech selected the MS2090A for precise evaluation of wireless characteristics.
STech (www.sojitz-ti.com) supports digital transformation by providing services such as network and IT infrastructure construction, and system development, operation and maintenance. Since its establishment in 1969, it has integrated ICT through its experience-backed technical capabilities, to support businesses in a wide range of fields.
Based in Silicon Valley, Celona (celona.io) is a pioneer and innovator of enterprise private wireless. The company developed the industry’s first 5G LAN system, a turnkey private 5G offering that lets enterprises address their growing needs for secure and reliable wireless connectivity for critical business applications.
Anritsu (www.anritsu.com) has provided communications test and measurement products for 130 years. The company develops products for 5G, M2M, IoT and other emerging and legacy wireline and wireless communication markets. With offices throughout the world, it has approximately 3500 employees in more than 90 countries.










