In the last decade, the world has experienced a spate of major disasters, from earthquakes in Chile, Haiti, New Zealand, Japan, Turkey, and Nepal to tsunamis in Indonesia, the Pacific and Japan, fires in Australia, floods in the Philippines, volcanoes in Iceland, droughts, hurricanes and tornados in the US. Hundreds of thousands continue to die or suffer. And increasing population density... Continue Reading
Successful system design is heavily dependent on the designer’s understanding of the channel and its properties. Tait Principal Engineer Ian Graham continues his radio theory series with examples of channel properties that are critical to overall RF system design.
In a radio system, there may be large distances (including hills, forests, buildings etc) between the transmit and the receive antennas. This is the channel, the medium over which we propagate the signal from the transmitter to the receiver. Here we look at nine key channel properties that... Continue Reading
They promised time and money savings, with less driving, less disruption, and more control over devices. OTAP would dramatically reduce the resource required to operate a network. Large radio fleets would be upgraded simply, quickly and seamlessly, without having to recall vehicles and users to base.
In this article, we discuss why this hasn’t always happened, and where OTAP development is currently.
What OTAP brings to Radio Fleet Management
Despite the market demand, the time taken by... Continue Reading
The FCC has announced that narrowbanding 700 MHz networks by 2017 is no longer mandated. In this article, Tait Public Safety Solutions Manager Dr. Russell Watson looks at who will be affected, and what the implications are.
Towards the end of 2014, the FCC announced that the 2017 narrowbanding implementation deadline was no longer viable, or indeed necessary. This decision was preceded by FCC granting a number of waivers to entities who had argued variously that:
- they had no spectral congestion,
- the regulation artificially shortens the life of their existing system,
- the... Continue Reading
This article, from Helmut Koch’s presentation at a Tait-sponsored partner seminar, looks at standards and why they are still not working the way they should, to serve the communications needs of public safety agencies.
How much value we can create depends on our customers. If they are well educated, they will look critically at the radio system, 911 call-taking system, dispatch system, recording system, and... Continue Reading
Anthony Hoffman’s move to Antarctica was completely unplanned. One day he was Senior Hardware Design Engineer with Tait Communications’ custom integration team in Christchurch, the next he had signed up as Communications Engineer at New Zealand’s scientific research station in Antarctica.
He is currently working his third 13-month stint on the ice. In this article he shares the triumphs and challenges of managing multiple communications networks in one of the harshest environments on the planet.
My very-abrupt shift in career came about in 2010.... Continue Reading
by Lorraine Bonisch, Editor, Connection Magazine.
In this issue, you’ll find an interesting mix of technical and high level perspectives and opinion from Tait experts and others from our circle of partners and contacts. Whether you are a radio communications decision maker, an IT professional new to radio, or an experienced operator, we are sure you will find something interesting and thought-provoking in this current roundup.
In this issue, articles you will want to read include:
- Communications on Ice: managing a radio network in Antarctica
- Channel concepts every... Continue Reading
Monitoring practices for US Public Safety LMR systems vary greatly, from 24/7 live monitoring to simply relying on complaints from users. Darek Wieczorek looks at why this is, and how it needs to change.
When radio systems were relatively simple and isolated, system monitoring came down to the users reporting communications problems. While this may have been sufficient in the past, today’s systems are highly integrated, and depend on external computers, servers, routers, links, multiple software platforms, even people in different organizations. This is why... Continue Reading
As communication networks converge, it is inevitable that there will be some friction and misunderstanding between IT and radio experts. And yet, cooperation is essential, with many issues to be worked through together.
- How should responsibilities be decided?
- Who does what?
- How separate or interdependent should they be?
- What skill sets do you need?