 Setting the standard for digital terrestrial television by Gerhard Petrick, Southern African Digital Broadcasting Association
SA has made significant strides towards the digitisation of broadcasting. Systems and standards have been defined, and industry stakeholders have been preparing for the commercial launch... (more) |
In conversation with Joe Grand
Speaking at the recent ITWeb Security Summit held at the Sandton convention centre, international security guru and president of Grand Idea Studio, Joe Grand, said that attention to hardware hacking is ten years behind the awareness given to software... ( more) |
Telepresence, video and teleconferencing
by Hans van de Groenendaal, EngineerIT
Companies worldwide have significantly changed their way of undertaking business on a day-to-day basis, since the beginning of the economic crisis. Limited travel budgets have compelled companies to seek new means of communication and collaboration... ( more) |
Bridging VoIP islands
by Hans van de Groenendaal, EngineerIT
Internet telephony, or voice over internet protocol (VoIP) is in the midst of a global wave of mass consumer adoption and South Africa is a part of this. With increased broadband availability it is clear that the decade-old promise of VoIP replacing the public switched telephone network (PSTN) is happening fast... ( more) |
Voice biometrics - a mature technology for speaker verification
by Chris Joubert, Dimension Data
Voice biometrics utilises the voice for identity verification, based on a mathematical representation of the voice tract, which is as unique as a fingerprint. It is finding wide application: replacing passwords, fingerprints and a host of other identification options... ( more) |
The power of push
by Mark Parsons, D6 Technology
The fading fortunes of PointCast gave push technology a bad name in the early internet years, but the technology is far from dead and buried. We have been successfully pioneering services and applications based on push technology since 2001... ( more) |
Fibre over the air
by Hans van de Groenendaal, EngineerIT
Free space optics - also referred to as "fibre over the air" - is a new point-to-point wireless technology used for short distance high bandwidth connections. It uses laser operating in the infrared optical band to communicate digital data through free space...
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Sensor control in prevention of environmental disasters
by Hans van de Groenendaal, EngineerIT
Could better sensor control have prevented the recent Gulf of Mexico oil spill? This was put to Rolf Panzke of Siemens, Germany, when he presented his keynote address at the Siemens TIA User Forum held in Johannesburg during May 2010...
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PACs for industrial control, the future of control
Information from National Instruments
With a number of vendors producing programmable automation controllers that combine the functionality of a PC and reliability of a PLC, PACs are increasingly being incorporated into control systems... ( more) |
Increasing plant and workforce efficiency
by Claude Agostinetto, Systems Automation Management Industrial plants are increasingly becoming automated, leading to shortages of staff skilled in the management of automation and associated control software... ( more) |
FPGA-based interface model and inter-FPGA communication
by P Venkateswran, et al, Jadavpur University, India
To enable devices to communicate with each other over a serial data bus without data loss, as well as to enable faster devices to communicate with slower ones, the I2C (Inter-IC) protocol was put forward by Philips Semiconductors in January 2000... ( more) |
Thermal management of electronic devices
by Dr. John Humphries, Electrolube, UK
Most electronic components are low power and produce negligible heat in operation. Some devices however - such as power transistors, CPUs and power diodes - produce a significant amount of heat... ( more) |
Intelligent mixed-signal FPGAs
Information from Asic Design Services
Intelligent mixed-signal FPGAs combine the proven and highly flexible ProASIC 3 FPGA fabric, advanced mixed-signal capabilities and a hard ARM Cortex-M3 processor into a single device... ( more) |
More processing speed with high-performance chip
by Hans van de Groenendaal, EngineerIT
Intel has launched its fastest to date high performance chip providing on average three times increase in processing speed with over 20 reliability features. The new Intel Xeon 7500 processor series is based on the Nehalem clip design... ( more)
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Fibre optic power meter calibration uncertainties
by Mariesa Nel, NMISA and Bertus Theron, CSIR
This article discusses the determination of uncertainty contributions when performing a power responsivity calibration for a fibre optic power meter... ( more) |
Energy monitoring and targetting - a continuous cycle
by Evan Dent, Endress+Hauser
Energy in SA (as well as globally) has become a key area of attention in recent years. SA in particular has a larger than average problem as a result of the capacity shortages we face in the short term... ( more)
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Traceability - a key issue in EMC measurements
by EngineerIT and Lukas Naudé, SANAS
Eectro-magnetic compatibility is an important part of evaluating the performance of products manufactured by the electrical, electronic and communications industry... ( more) |
Radio amateurs recognised for technology contributions
Every year the SA Amateur Radio Development Trust recognises three radio amateurs for their contribution to technology and service to the community. The three awards were sponsored by Nokia Siemens Networks... ( more) |
Telecoms developments in Africa compiled by Matthew White, Iona Press Services
- Fixed-line growth forecast on back of fibre rollout
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Angola's mobile operators urged to step up investment
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Vodacom threatens to quit Congo-DR over funding row
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Globacom may quit Ghana over "sabotage"
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French govt supports US$325-million claim against Kenya
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Unpaid workers threaten to destroy Uganda-Rwanda cable
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Rwanda's National Data Centre to be ready by year end
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Globacom gets licence to operate in Senegal
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Tanzania's backbone switch-on leads to big internet saving
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Vodacom ramps up its investment in Mozambique... ( more)
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Gadgets for geeks
We bring you the latest in gadgetry: a snoring alarm; antivirus - protection from the cloud; a full HD pocket-sized camcorder and a cute cellphone charger... ( more) |
Industry and institute news
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