Radio Systems

Putting rail back on track

11 October, 2005

While Australia's railways continue to be riddled by different, often incompatible communications systems, the efficiency and continued development of the network are at risk. Antoine Rouot of Nortel discusses a new digital radiocommunications system.


Dual power supplies

01 September, 2005 | Supplied by: http://www.nilsen.com.au/

The Toellner 895x range of dual output power supplies, with 400 W output, covers voltages and currents of: 2 x 0-40 V, 2 x 0-10 A - TOE 8952-40; 2 x 0-60 V, 2 x 0-7 A - TOE8952-60; 2 x 0-80 V, 2 x 0-5 A - TOE 8952-80.


Voltage regulators

01 September, 2005 | Supplied by: http://www.adilam.com.au/

The power electronics division of C&D Technologies has released three high-efficiency step-down voltage regulators that are pin- and size-compatible with older and less efficient LM78xx devices.


Parabolic antennas

26 July, 2005 | Supplied by: http://www.pacsat.com.au/

PacSat Antennas has launched a range of 5.8 GHz solid parabolic dishes. Solid dishes have a number of advantages over parabolic grids - particularly in high traffic: better front-to-back ratio (greater immunity to interference); more uniform and narrower beam-width; more robust than panel-type equivalent.


Range doubled

26 July, 2005 | Supplied by: http://www.rsaustralia.com/

RS Components has added 22,000 new products into its Extended Range.


Satellite comms network

26 July, 2005 | Supplied by: http://www.ascs.com.au/

The TSAT 2150 satellite communications network offers remote control, monitoring and data collection within SCADA networks.


5.8GHz solid parabolic antennas

26 July, 2005 | Supplied by: http://www.pacsat.com.au/

PacSat Antennas has just launched its new range of 5.8GHz solid parabolic dishes. Solid dishes have a number of advantages over parabolic grids - particularly in high traffic environments:


Enhanced battery

27 April, 2005 | Supplied by: http://www.logicenergy.co.nz/Home

By enhancing the design of the Tait Orca battery contacts, using a modern flexi PCB and high grade cells and plastics, end users now have access to an improved battery for the Orca portable radio.


Beamwidth antennas

27 April, 2005 | Supplied by: http://www.rfs.com.au/

Three broadband 90° beamwidth mobile antennas have joined Radio Frequency Systems' optimiser family.


PCI digitiser

27 April, 2005 | Supplied by: http://www.emona.com.au/

Gage Applied Technologies has released a digitiser for the PCI platform.


UHF CB GPS handheld

27 April, 2005 | Supplied by: http://www.uniden.com.au/

Using GPS and UHF, the GPS205 enables the user to send, receive and navigate a position to a friend, communicate up to 6 km and provide a level of nationwide protection.


Monitoring and sequencing supply voltages - Part 2

11 April, 2005 by Joe Chong & Jay Scolio, Maxim Integrated Products | Supplied by: Arrow Electronics Australia Pty Ltd

For most electronic systems, monitoring system voltages with a power-on reset (POR) ensures proper initialisation at power-up


Broadband system

31 March, 2005 | Supplied by: http://www.waverider.com.au

WaveRider's LMS4000 is a non-line-of-sight broadband wireless system designed specifically for 900 MHz.


PCI digitiser

31 March, 2005 | Supplied by: http://www.emona.com.au/

Gage Applied Technologies has released a digitiser for the PCI platform. Operating at 200 MS/s (5 ns sampling intervals) with a resolution of 14 bits, the CompuScope 14200 is a general-purpose digitiser aimed at satisfying precision signal capture requirements in various fields of scientific and commercial research, development, as well as manufacturing test applications.


Enhanced battery

31 March, 2005 | Supplied by: http://www.logicenergy.co.nz/Home

By enhancing the design of the Tait Orca battery contacts, using a modern flexi PCB and high grade cells and plastics, end users now have access to an improved battery for the Orca portable radio.


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