Security cameras – it’s all in the technology

  Selecting the right camera for security applications is far more complicated than what one would think. It is not just selecting the right camera; lens technology and image processing technology are also factors to be considered, as well as whether quality pictures are possible in low light conditions; or whether the image processing technology […]

Interfacing design and test automation tools

  As the development of design and test automation tools continues apace, so too does the convergence of the disciplines that utilise these sophisticated software systems. In this article we will consider how electronic design automation (EDA) and automated test development software and their users interact at the following levels: Connection data (Netlist) import for […]

Evaluating oscilloscopes for low-power measurements

  Increasing market demand for products that are portable, mobile, green, and that can stay powered for long periods of time is driving a change in new-product innovation. It’s low power, not performance, that is king. The ever-increasing need for power reduction drives engineering teams to devise innovative methods and architectures. The low-power mega trend […]

Ultra-low-power MCU modes – efficiencies and obstacles

  The market offers a large range of microcontrollers described as “ultra-low-power” (ULP). These MCUs aim to reduce and optimise the power consumption of all applications, so as to – in the case of battery-operated systems – extend the battery life. Several complying techologies exist: starting from an optimised energy-consuming active mode, to various sleep […]

Calibration: the deceptively simple part of owning a test instrument

  Who should calibrate measurement instruments? When? And how? Users’ questions on calibration are remarkably easy to answer – provided you do not think about them too deeply. But as this article will show, there are layers of complexity underlying the issue of calibration, and they merit concentrated examination by any user who has a […]

The future of two-way radio in South Africa

  In general, the world has been moving from analogue to digital systems for quite a while now. This migration is also taking place in the area of two-way radio communication, but the digital uptake in South Africa is reasonably slow. The authors conducted a survey to determine how stakeholders in the two-way radio industry […]

Protection of cell sites (4G/LTE)

  With the commercial introduction of UMTS technology in 2003, mobile data communication gained in importance besides voice communication. As the demand for data volumes grew, so did the global demand for bandwidth. The increasing use of smartphones and other mobile terminal equipment has lead to a significantly higher utilisation of existing conventional mobile networks. […]

Connecting to and communicating with a video wall

  A video wall consists of an integration of multiple ultra-thin bezel LCD or rear projection digital light processing (DLP) displays tiled together contiguously or overlapped to form one large logic screen. This produces a high quality image on a vast pixel estate resulting in a superior human-machine interface through effective communication with the video […]

EMI shielding effectiveness in conductively coated plastics

  Conductively coated plastics are becoming increasingly popular for EMI shielding. Vacuum metallising is a cost effective way to get fast turnaround in small quantities. Commonly, shapes can be complex, making it impossible to get absolutely uniform coatings. The article covers comparative shielding effectiveness (SE) tests on various configurations, primarily to assess the impact of […]