Engineers can Perform Radio Layer Testing that Complies with Bluetooth Core 4.2 Specification, Including Provision for Bluetooth Low Energy 'Data Length Extension' Anritsu Company introduces an option for its MT8852B Bluetooth test set that supports the Data Length Extension associated with Bluetooth Low Energy as part of the latest Bluetooth Core Specification version 4.2. With the new Data Length Extension option, designers and manufacturers of Bluetooth Smart and Bluetooth Smart Ready devices can use the industry leading MT8852B to conduct radio layer tests in full compliance with the newly adopted Bluetooth 4.2 standard to improve product throughput and speed time to market.