While designing a narrowband internet of things (NB-IoT) terminal transceiver, experts from Hong Kong Applied Science and Technology Research Institute (ASTRI) discovered an improper definition in the NB-IoT standard’s receiver wideband intermodulation requirement. The requirement was more stringently specified than that in the LTE standard, which runs counter to the promise of offering low-cost/low-power NB-IoT […]
Test Equipment
VIDEO: Whip Antenna Connected To Tektronix RSA306B Spectrum Analyzer
Waveforms from a Tektronix RSA306B with a whip antenna connected to it are examined. They are RF emissions from local FM broadcast stations. Hi again and welcome to our 69th Test and Measurement video. In a previous video, we connected the Tektronix RSA 306B PC-based spectrum analyzer to the output from an arbitrary function generator. […]
Vibration cancellation for SEMs
TMC introduces SEM-Base® VI, the next generation of its STACIS® active piezoelectric vibration cancellation product line. Like the original SEM-Base system, SEM-Base VI is designed to support all commercial scanning electron microscopes (SEMs). It features improved vibration isolation performance and a faster and more-robust controller that provides the user with an advanced graphical user interface […]
Single instrument handles LTE-Advanced 1 Gbps IP Throughput Testing
Anritsu Company introduces a single-instrument solution that enables 1 Gbps IP data communications throughput testing based on its Signalling Tester MD8475B that supports 4×4 MIMO with 256QAM high-order modulation and four component carrier aggregation. The integrated system, which consists of the new Enhanced Multi-signalling Unit MD8475B-071 option and LTE 4×4 MIMO software, lowers cost-of-test and improves time-to-market by […]
Isolated 4-channel 200 MHz scope handles up to 1 kV swings
Saelig Company Inc. has introduced the Cleverscope CS448, a unique isolated high common-mode rejection ratio (CMRR) four-channel 200MHz 14-bit oscilloscope. It has been designed to measure high voltage, fast slew-rate signals such as those in a full or three-phase power electronic switching bridge (e.g. gate drives to measure voltage and charge, power switching to measure loss and […]
VIDEO: Tektronix RSA306B PC-Based Spectrum Analyzer
A new Tektronix PC-based spectrum analyzer is described and configured to a Windows laptop computer, and its use is demonstrated. Hi and welcome to our 68th Test and Measurement video. Today we’ll do an overview of the Tektronix amazing breakthrough RSA306B PC-based spectrum analyzer. To generalize, the spectrum analyzer is similar to the oscilloscope, but […]
Testing operational amplifiers
Because it is able to function in so many diverse ways, the op-amp can be the defining element in electronic circuits of any complexity. Applications go far beyond amplification. Because they are near-perfect dc amplifiers, op-amps are suitable for filtering, signal conditioning, and for performing such mathematical operations as addition, subtraction, differentiation, and integration. Op […]
The modern economics of renting test instruments
The development of online instrument exchanges puts a new wrinkle into how to get the optimum use of test gear. LEE TESCHLER EXECUTIVE EDITOR When a project comes up that involves expensive test gear like gigahertz-range signal analysis, statistics from the Equipment Leasing & Finance Foundation show this kind of instrumentation is increasingly acquired through […]
Better testing for better M2M, D2D and IoT devices
New instrumentation simplifies the task of examining how wireless applications behave during periods of both high and low power consumption. Tom Bifiato, Rohde & Schwarz America Countless devices use cellular platforms to connect and exchange data. Machine-to-Machine (M2M) and device-to-device (D2D) communication systems all use cellular networks via GSM and GPRS. M2M and D2D communication […]
Better testing with well-controlled ac power
Modern ac power supplies are adept at cleaning up line conditions that can lead to garbled electrical test results. STEVE BOEGLE BEHLMAN ELECTRONICS, INC. IF you plug your product’s power cord into any unregulated standard factory ac main, there is a possibility that the power you are using could corrupt any testing you do. The […]