Silicon ChipHigh-speed broadband network could be a white elephant - May 2009 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: High-speed broadband network could be a white elephant
  4. Feature: Tech Support: Terror Tales From The Front Line by Barrie Smith
  5. Feature: HID Lamps: Out Of The Car & Over Your Shoulder by Ross Tester
  6. Project: Dead-Accurate 6-Digit GPS-Locked Clock, Pt.1 by Jim Rowe
  7. Project: 230VAC 10A Full-Wave Motor Speed Controller by John Clarke
  8. Project: Precision 10V DC Reference For Checking DMMs by Jim Rowe
  9. Feature: Why Calibrate Your Test Equipment? by Tony Tong
  10. Feature: How To Draw Circuit Schematics In Protel Autotrax by Rick Walters
  11. Project: UHF Remote 2-Channel 230VAC Power Switch by Branco Justic & Ross Tester
  12. Project: Input Attenuator For The Digital Audio Millivoltmeter by Jim Rowe
  13. Vintage Radio: The Astor Football GR/GRP 3-Valve TRF Receiver by Rodney Champness
  14. Book Store
  15. Advertising Index
  16. Outer Back Cover

This is only a preview of the May 2009 issue of Silicon Chip.

You can view 31 of the 104 pages in the full issue, including the advertisments.

For full access, purchase the issue for $10.00 or subscribe for access to the latest issues.

Articles in this series:
  • Tech Support: Terror Tales From The Front Line (May 2009)
  • Tech Support: The View From The Other Side (June 2009)
Items relevant to "Dead-Accurate 6-Digit GPS-Locked Clock, Pt.1":
  • 6-Digit GPS Clock Autodim Add-On PCB [04208091] (AUD $5.00)
  • 6-Digit GPS Clock Driver PCB [07106091] (AUD $15.00)
  • 6-Digit GPS Clock Main PCB [04105091] (AUD $25.00)
  • PIC16F877A-I/P programmed for the 6-Digit GPS Clock [0410509E.HEX] (Programmed Microcontroller, AUD $20.00)
  • VK2828U7G5LF TTL GPS/GLONASS/GALILEO module with antenna and cable (Component, AUD $25.00)
  • PIC16F877A firmware and source code for the 6-digit GPS Clock [0410509E.HEX] (Software, Free)
  • 6-Digit GPS Clock Autodim Add-On PCB pattern (PDF download) [04208091] (Free)
  • 6-Digit Clock GPS Driver PCB pattern (PDF download) [07106091] (Free)
  • 6-Digit GPS Clock main PCB pattern (PDF download) [04105091] (Free)
Articles in this series:
  • Dead-Accurate 6-Digit GPS-Locked Clock, Pt.1 (May 2009)
  • GPS Driver Module For The 6-Digit Clock, Pt.2 (June 2009)
Items relevant to "230VAC 10A Full-Wave Motor Speed Controller":
  • 230VAC 10A Full-Wave Motor Speed Controller PCB pattern (PDF download) [10105092] (Free)
  • 230VAC 10A Full-Wave Motor Speed Controller front panel artwork (PDF download) (Free)
Items relevant to "Precision 10V DC Reference For Checking DMMs":
  • Precision 10V DC Reference PCB pattern (PDF download) [04305091] (Free)
  • Precision 10V DC Reference front panel artwork (PDF download) (Free)
Items relevant to "Input Attenuator For The Digital Audio Millivoltmeter":
  • Digital Audio Millivoltmeter Input Attenuator front panel artwork (PDF download) (Free)
  • Input Attenuator PCB for Digital Audio Millivoltmeter [04205091] (AUD $7.50)
  • Digital Audio Millivoltmeter Input Attenuator PCB pattern (PDF download) [04205091] (Free)
Articles in this series:
  • Build A Digital Audio Millivoltmeter (March 2009)
  • Input Attenuator For The Digital Audio Millivoltmeter (May 2009)

Purchase a printed copy of this issue for $10.00.

SILICON SILIC CHIP www.siliconchip.com.au Publisher & Editor-in-Chief Leo Simpson, B.Bus., FAICD Production Manager Greg Swain, B.Sc. (Hons.) Technical Editor John Clarke, B.E.(Elec.) Technical Staff Ross Tester Jim Rowe, B.A., B.Sc Mauro Grassi, B.Sc. (Hons), Ph.D Photography Ross Tester Reader Services Ann Morris Advertising Enquiries Glyn Smith Phone (02) 9939 3295 Mobile 0431 792 293 glyn<at>siliconchip.com.au Regular Contributors Brendan Akhurst Rodney Champness, VK3UG Mike Sheriff, B.Sc, VK2YFK Stan Swan SILICON CHIP is published 12 times a year by Silicon Chip Publications Pty Ltd. ACN 003 205 490. ABN 49 003 205 490. All material is copyright ©. No part of this publication may be reproduced without the written consent of the publisher. Printing: Hannanprint, Noble Park, Victoria. Distribution: Network Distribution Company. Subscription rates: $89.50 per year in Australia. For overseas rates, see the order form in this issue. Editorial office: Unit 1, 234 Harbord Rd, Brookvale, NSW 2100. Postal address: PO Box 139, Collaroy Beach, NSW 2097. Phone (02) 9939 3295. Fax (02) 9939 2648. E-mail: silicon<at>siliconchip.com.au ISSN 1030-2662 * Recommended and maximum price only. 2  Silicon Chip Publisher’s Letter High-speed broadband network could be a white elephant So the Federal Government has proposed a completely new optical fibre broadband network. Whoopee! All those people who are dissatisfied with their present internet connections will no doubt be salivating at the prospect of such a high-speed, high capacity network? Or will they? And what will they use it for? In the days after the initial release there have been numerous questions raised about the huge projected cost to build it, its overall coverage of the population and the projected monthly charges. At the time of writing this editorial, there is simply not enough detailed information to make an informed comment. Nor has any of the enabling legislation been drawn up and nor do we know if it will be passed in its proposed form or whether it may be changed so much that the result bears little resemblance to the original proposal. But in spite of the lack of detail, there are a number of concerns that do need to be addressed before the project gets too far down the track. The first question revolves around the huge projected cost of $43 billion, which is an order of magnitude larger than the $4.7 billion government contribution to the originally proposed broadband tender. This means that the project will have enormous financial costs even before a single customer has signed up. It also means that the monthly charges will need to be quite high, perhaps as high as $150 to $200 according to some analysts. You would need to be a very committed user to pay that much. Second, we would need to be assured that there would be no significant differences between download and upload speeds, as there are with the present broadband system. Fast download speeds are all very well if you are downloading movies but business wants fast upload speeds as well, for a wide range of applications. Third, there is a big question over whether we need a fibre-optic network at all, in addition to the existing cable networks. With the ever-increasing speeds available from wireless networks, why have another cable network running down the streets of the nation. And is the new fibre-optic network likely to be above ground, like the present Optus network? Surely not! Many developing nations are choosing to bypass conventional wired networks for phone and internet and have gone straight to wireless systems. Overall, I have a very bad feeling concerning this plan. Is it likely to be another financial disaster like the 1980s PayTV debacle? Is the government trying to come good on an election promise when it should quietly leave the whole field to private enterprise? And are we going to end up with another government-sponsored monopoly like Telstra was? Finally, if the government is all that keen to build big infrastructure projects, why not build something really tangible such as the long-proposed Very Fast Train (VFT) project? This would not only provide a very important high-speed link between the eastern state capitals of Brisbane, Sydney, Canberra & Melbourne but would also help reduce Australia’s oil import bill and thus the balance of payments. It would also reduce our overall greenhouse gas emissions – something which is supposedly a big concern to the Federal Labor Government. In suggesting the Very Fast Train project, I am mindful of the pitfalls of such government-sponsored infrastructure such as the Alice Springs to Darwin railway which is over-burdened with debt. However, the VFT project would potentially serve a very large population along its proposed route and there would be countless benefits apart from the railway itself. Leo Simpson siliconchip.com.au