Articles
Using the internet to get the message across
Today’s immediate need is for radio interoperability. Standards, industry and government initiatives are addressing the issue, but not entirely and, arguably, not quickly enough. It is important that standards are developed, and the efforts to define them are invaluable.
[ + ]Multipath fading effects on short-range links
This article introduces multipath fading and describes the results of experiments conducted by Alciom on short-range 2.4 GHz RF links in indoor environments.
[ + ]Service management for enhanced safety networks
Interoperability between different agencies has been highlighted as one of the key challenges to improve emergency services’ responses to incidents - ranging from accidents to natural disasters and terrorist attacks. Mark Ward, national business development manager for Airwave Solutions Australia, explains the benefits of taking a ‘service management’ approach to address this challenge.
[ + ]Software development - a lot more than programming
As microprocessors get increasingly more powerful, so does the appetite for additional software functionalities. Size of embedded systems software increases every year, bringing new types of problems.
[ + ]Connectors moving up the curve
Historically, connectors designed specifically for distributing power have been comparatively slow to adapt to changing needs. This product segment had not attracted major investment in research and design for a variety of reasons, including relatively low sales volume, highly customised application requirements and possible liability issues.
[ + ]Automated testing using NI software
Designing and developing a test system that has component and unpowered testing, device programming, radio signal analysis and calibration, and no operator intervention for production testing of a point-to-multipoint radio product used for remote supervisory control and data acquisition network applications, is the challenge.
[ + ]New tricks for old dogs
We’re all familiar with the old ‘break-fix’ model of service - it’s been the way of life for many years. It works well; it generates revenue and keeps you in business alongside hardware sales. The problem is that it’s a short-term solution for a long-term user.
[ + ]Beamforming boosts efficiency of WiMAX networks
Having gained tremendous momentum over a number of years, WiMAX is now widely viewed as a leading candidate for fourth-generation (4G) wireless data communication.
[ + ]DMR is very much on track
In the November/December issue of RadioComms Asia-Pacific, David Cox, operations manager of Pacific Wireless Communications, took the DMR Association to task for what he described as a “pied piper” march to the “dream of digital utopia” and the new standards that may be adopted. The DMR has responded and this is its reply.
[ + ]Changing the standard for public transport
In the November/December issue of Radio Comms Asia Pacific, David Cox, operations director of Pacific Wireless Communications, took issue with the DMR bid to ‘take over the world’ of mobile radio in his article “DMR - is it the road to nowhere?” He argued that Tetra has largely already achieved what DMR is wanting to do so, following on from that argument, this article looks more closely at what the DMR standard is all about.
[ + ]First multicast mesh network in Darwin
When NT police planned an $8.612 million closed-circuit television system to monitor trouble hotspots in Darwin, it deployed a self-healing wireless network designed by MIMP connecting solutions to manage 109 cameras covering 6 sq km of the city’s streets.
[ + ]Beamforming boosts efficiency of WiMAX networks
Having gained tremendous momentum over a number of years, WiMAX is now widely viewed as a leading candidate for fourth-generation (4G) wireless data communication.
[ + ]Airport upgrade
Lyon-Saint Exupéry airport has selected Sepura Tetra terminals for its radio and communication needs following the recent deployment of a new digital communications system that replaced four legacy analog networks.
[ + ]Complexities of embedded systems
Increasing complexity has long been a major embedded systems developer concern. Some industries have seen this trend earlier than others but it appears none will escape the trend. It is just a matter of time until this is a concern across every market segment.
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