Rohde & Schwarz to show high performance oscilloscopes

Rohde & Schwarz to show high performance oscilloscopes

Business news |
By Wisse Hettinga

The RTP family of high-performance oscilloscopes combine exceptional signal integrity with a high update rate and multiple instrument capabilities. The whisper-quiet oscilloscopes acquire up to 1 million waveforms per second and perform realtime deembedding to correct transmission losses between the signal source and the oscilloscope. This correction is usually made by filtering the acquired waveforms during postprocessing. With conventional oscilloscopes, this requires a great deal of patience on the part of the user. In contrast, with the RTP, the correction can also be made using flexible filter structures directly after the A/D converters. With that approach, the RTP displays the waveforms without transmission losses, i.e., as they appear at the DUT output; there is no time wasted with lengthy calculations during postprocessing. All these features combine to make the RTP the oscilloscope of choice for debugging – for example when testing electronic systems or highly integrated electronic circuits with high-speed digital or wideband RF interfaces. The oscilloscope comes in three models with different bandwidths: 4 GHz, 6 GHz and 8 GHz.

Another highlight is the RTx-K36 software option for the RTB2000, RTM3000 and RTA4000 oscilloscopes. It can be used to measure the transfer function of active and passive DUTs in terms of gain and phase in the frequency range from 10 Hz to 25 MHz. The oscilloscope’s integrated arbitrary waveform generator delivers the stimulus signal. Results, i.e., the gain and phase versus frequency, are plotted as Bode diagrams. The RTx-K36 is especially useful for switched-mode power supplies in order to measure and tune the control loop response and the power supply rejection ratio (PSRR). The amplitude and phase margins can be read directly from the Bode plots.


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.

Rohde & Schwarz will premiere its latest NGL200 power supply series at embedded world. Featuring high accuracy and fast load recovery times, the NGL200 power supplies are perfect for challenging applications in mobile communications and the internet of things (IoT). Their two-quadrant architecture allows them to function both as a source and a sink. Their short recovery times of less than 30 µs enable them to handle fast load changes that occur for example when a device switches from sleep mode to transmit mode. The NGL200 power supplies also feature minimum residual ripple and low noise. With up to 6 ½ digits resolution, they eliminate the need for an additional digital multimeter in many applications. The single-channel NGL201 and the two-channel NGL202 deliver up to 60 W of output power per channel. The output channels are floating, galvanically isolated and protected against overload and short circuits. The power supplies also set new standards with their capacitive touchscreens and large, high-contrast displays. Temperature-controlled fans ensure extremely quiet operation. Extensive safety functions safeguard the DUT and the power supply in the event of a fault.

As the technology leader in EMC test systems, Rohde & Schwarz will also showcase its ELEKTRA EMC test software. This provides fully automatic electromagnetic interference (EMI) and electromagnetic susceptibility (EMS) tests on products, accelerating test times and cutting costs. ELEKTRA is suitable for the certification of devices for the commercial, automotive and A&D sectors. It complements the ELEKTRA EMI test software, which supports interactive measurements for precompliance testing in the development phase.

ELEKTRA EMC test software.

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