Rohde & Schwarz will also demonstrate the first signaling test system for Bluetooth® Low Energy (Bluetooth® LE, BLE), allowing manufacturers to perform RX/TX tests on their BLE wireless modules. The main challenge here is that these devices often have no port or interface to connect to a control line for testing them in direct test mode (DTM) as stipulated by the Bluetooth® LE standard. The BLE signaling test system for the CMW test platform is unique on the market. It allows the RF characteristics of a BLE device to be determined via a Bluetooth® over-the-air (OTA) connection, i.e., without the use of a control cable. The CMW test platform offers three RF test modes for characterizing BLE devices: the new BLE signaling functionality, BLE direct test mode and BLE advertising mode. In addition, in direct test mode, there are 23 new test cases Rohde & Schwarz already supports with its BLE based indoor navigation system – making it the first manufacturer to launch a test solution for the new Bluetooth® 5.1 specification. For RF measurements, the specification focuses on direction finding, i.e., angle of arrival (AoA) and angle of departure (AoD). The new test cases are largely based on I/Q data, and the CMW supports the I/Q tests in addition to classic RF tests.
Rohde & Schwarz has re-engineered its power meter portfolio and will present its new NRX at embedded world. The power meter base unit offers up to four measurement channels and a touch GUI. The NRX even supports triggered and synchronized multichannel measurements, including with a combination of terminating and directional power sensors. Users can connect a wide variety of thermal and diode based terminated power sensors to the NRX ports, as well as the frequency selective NRQ6 power sensor. The NRQ6 is the only power sensor of its kind to deliver high-precision, high-speed measurements down to –130 dBm. It can perform band-limited power measurements, i.e. power measurements on selected transmission channels, as well as trace measurements on steep-edged pulses, and is also perfect for adjacent channel leakage ratio (ACLR) measurements, a common mobile communications application.