Silicon ChipSatellite Watch - December 1997 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Compact discs are simply too expensive
  4. Subscriptions
  5. Feature: A Heart Transplant For An Aging Computer by Ross Tester
  6. Feature: Understanding Electric Lighting; Pt.2 by Julian Edgar
  7. Project: Build A Speed Alarm For Your Car by John Clarke
  8. Project: A 2-Axis Robot With Gripper by Graeme Matthewson
  9. Feature: Satellite Watch by Garry Cratt
  10. Project: Loudness Control For Car Hifi Systems by Rick Walters
  11. Project: Stepper Motor Driver With Onboard Buffer by Rick Walters
  12. Serviceman's Log: Encounters witha notebook PC by The TV Serviceman
  13. Product Showcase
  14. Order Form
  15. Feature: Radio Control by Bob Young
  16. Vintage Radio: Restoring a sick Radiola by John Hill
  17. Project: Power Supply For Stepper Motor Cards by Rick Walters
  18. Feature: Index to Volume 10
  19. Book Store
  20. Market Centre
  21. Outer Back Cover

This is only a preview of the December 1997 issue of Silicon Chip.

You can view 30 of the 96 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:
  • Understanding Electric Lighting; Pt.1 (November 1997)
  • Understanding Electric Lighting; Pt.1 (November 1997)
  • Understanding Electric Lighting; Pt.2 (December 1997)
  • Understanding Electric Lighting; Pt.2 (December 1997)
  • Understanding Electric Lighting; Pt.3 (January 1998)
  • Understanding Electric Lighting; Pt.3 (January 1998)
  • Understanding Electric Lighting; Pt.4 (February 1998)
  • Understanding Electric Lighting; Pt.4 (February 1998)
  • Understanding Electric Lighting; Pt.5 (March 1998)
  • Understanding Electric Lighting; Pt.5 (March 1998)
  • Understanding Electric Lighting; Pt.6 (April 1998)
  • Understanding Electric Lighting; Pt.6 (April 1998)
  • Understanding Electric Lighting; Pt.7 (June 1998)
  • Understanding Electric Lighting; Pt.7 (June 1998)
  • Understanding Electric Lighting; Pt.8 (July 1998)
  • Understanding Electric Lighting; Pt.8 (July 1998)
  • Electric Lighting; Pt.9 (November 1998)
  • Electric Lighting; Pt.9 (November 1998)
  • Electric Lighting; Pt.10 (January 1999)
  • Electric Lighting; Pt.10 (January 1999)
  • Electric Lighting; Pt.11 (February 1999)
  • Electric Lighting; Pt.11 (February 1999)
  • Electric Lighting; Pt.12 (March 1999)
  • Electric Lighting; Pt.12 (March 1999)
  • Electric Lighting; Pt.13 (April 1999)
  • Electric Lighting; Pt.13 (April 1999)
  • Electric Lighting, Pt.14 (August 1999)
  • Electric Lighting, Pt.14 (August 1999)
  • Electric Lighting; Pt.15 (November 1999)
  • Electric Lighting; Pt.15 (November 1999)
  • Electric Lighting; Pt.16 (December 1999)
  • Electric Lighting; Pt.16 (December 1999)
Items relevant to "Build A Speed Alarm For Your Car":
  • Car Speed Alarm PCB patterns (PDF download) [05311971/2/3] (Free)
  • Car Speed Alarm panel artwork (PDF download) (Free)
Articles in this series:
  • Satellite Watch (January 1996)
  • Satellite Watch (January 1996)
  • Satellite Watch (February 1996)
  • Satellite Watch (February 1996)
  • Satellite Watch (March 1996)
  • Satellite Watch (March 1996)
  • Satellite Watch (June 1996)
  • Satellite Watch (June 1996)
  • Satellite Watch (August 1996)
  • Satellite Watch (August 1996)
  • Satellite Watch (October 1996)
  • Satellite Watch (October 1996)
  • Satellite Watch (December 1996)
  • Satellite Watch (December 1996)
  • Satellite Watch (February 1997)
  • Satellite Watch (February 1997)
  • Satellite Watch (April 1997)
  • Satellite Watch (April 1997)
  • Satellite Watch (May 1997)
  • Satellite Watch (May 1997)
  • Satellite Watch (June 1997)
  • Satellite Watch (June 1997)
  • Satellite Watch (December 1997)
  • Satellite Watch (December 1997)
  • Satellite Watch (April 1998)
  • Satellite Watch (April 1998)
  • Satellite Watch (January 1999)
  • Satellite Watch (January 1999)
  • Satellite Watch (June 1999)
  • Satellite Watch (June 1999)
Items relevant to "Loudness Control For Car Hifi Systems":
  • Loudness Control for Car Hifi Systems PCB pattern (PDF download) [01111971] (Free)
Items relevant to "Stepper Motor Driver With Onboard Buffer":
  • PC Stepper Motor Drivers DOS software (Free)
  • Buffered Stepper Motor Driver PCB pattern (PDF download) [07110971] (Free)
Articles in this series:
  • Radio Control (November 1996)
  • Radio Control (November 1996)
  • Radio Control (February 1997)
  • Radio Control (February 1997)
  • Radio Control (March 1997)
  • Radio Control (March 1997)
  • Radio Control (May 1997)
  • Radio Control (May 1997)
  • Radio Control (June 1997)
  • Radio Control (June 1997)
  • Radio Control (July 1997)
  • Radio Control (July 1997)
  • Radio Control (November 1997)
  • Radio Control (November 1997)
  • Radio Control (December 1997)
  • Radio Control (December 1997)
  • Autopilots For Radio-Controlled Model Aircraft (April 1999)
  • Autopilots For Radio-Controlled Model Aircraft (April 1999)
  • Model Plane Flies The Atlantic (May 1999)
  • Model Plane Flies The Atlantic (May 1999)
  • Tiny, Tiny Spy Planes (July 1999)
  • Tiny, Tiny Spy Planes (July 1999)
  • 2.4GHz DSS Radio Control Systems (February 2009)
  • 2.4GHz DSS Radio Control Systems (February 2009)
  • Unmanned Aerial Vehicles: An Australian Perspective (June 2010)
  • Unmanned Aerial Vehicles: An Australian Perspective (June 2010)
  • RPAs: Designing, Building & Using Them For Business (August 2012)
  • Flying The Parrot AR Drone 2 Quadcopter (August 2012)
  • Multi-Rotor Helicopters (August 2012)
  • Multi-Rotor Helicopters (August 2012)
  • Flying The Parrot AR Drone 2 Quadcopter (August 2012)
  • RPAs: Designing, Building & Using Them For Business (August 2012)
  • Electric Remotely Piloted Aircraft . . . With Wings (October 2012)
  • Electric Remotely Piloted Aircraft . . . With Wings (October 2012)
Items relevant to "Power Supply For Stepper Motor Cards":
  • Stepper Motor Card Power Supply PCB pattern (PDF download) [10112971] (Free)
  • Stepper Motor Power Supply panel artwork (PDF download) (Free)

Purchase a printed copy of this issue for $10.00.

SATELLITE WATCH Compiled by GARRY CRATT* Apstar 2R Apstar 2R was successfully launched aboard a Long March 3B rocket from the Xiachang launch site in China on October 17. The satellite has 28 C band . 16 K band transponders, which and can operate at 60W and 110W respectively. The satellite was expected to be in commercial service by the end of November. Officials from APT advise that over 50% of the satellite capacity has already been leased. The satellite will occupy 76.5°E longitude. Asiasat 3 The launch date for Asiasat 3 has now been scheduled for December 12. This satellite will be launched to occupy 105.5°E, initially to be co-located with Asiasat 1 which will then be moved to 122°E longitude. We expect Asiasat 3 to be operational by mid-January, if the launch goes to schedule. Asiasat 3 will be launched from the Baikonur Cosmodrome in the Central Asian state of Kazakhstan using a Proton launcher. Asiasat has a contingency plan should the launch fail and has purchased a “small” 6 transponder satellite, which could be moved to 122°E to occupy the allocated slot, ensuring it is not stolen by another (non-ITU) operator. Palapa C1 As reported by various news agencies, engineers at the Satellindo uplink Satellite Communications Catalog Next month’s issue of SILICON CHIP will feature a compre­hensive 32-page catalog of satellite communications equipment from AvComm Pty Ltd. facility in Jakarta have realigned the antenna on this satellite to provide better performance in Australia and New Zealand. Initial test signals appeared on September 30, carrying CNBC programming, disappearing after a week or so. Palapa C1 is located at 150.5°E longitude and will be worth monitoring in future months. Panamsat 2 Chinese broadcaster China Central Television (CCTV) has begun uplinking from Beijing directly to Pas-2, bypassing the double hop previously used via Asiasat 1 and the Pas 2 uplink facility in Hong Kong. This means that CCTV can now uplink to both Pas 2 and Pas 4 from Beijing, considerably lowering operating costs. The network has advised they will be expanding to six channels. Pas2 viewers can presently see CCTV3, 4, 5 and 9, all broadcast in PowerVu without conditional access. loaded at rates up to 225Kb/s. Optus B3 The Optus Aurora platform commenced testing in Octob­er. This platform will carry ABC and SBS (amongst others) digital services, once the current HACBSS BMAC service is terminated. There is expected to be a gradual rollout over the next 12 months. * Garry Cratt is Managing Director of AvComm Pty Ltd, suppliers of satellite TV reception systems. Phone (02) 9949 7417. http://www.avcomm.com.au Asiasat 2 New Guinea broadcaster EMTV, which moved to Asiasat 2 late September on 3760MHz horizontal, will move again as early as mid November. EMTV intend to switch to non-conditional access MPEG2, with SR 4333, FEC, on 4006/1144MHz vertical polarisation. Most free to air digital receivers will operate using these parame­ters. Elsewhere on this satellite, Zaknet, a Kuwait based group uplinking out of the Subic Bay teleport in the Philippines, has commenced their one way internet service. Similar to Net On Air (which has yet to commence service), the system uses a standard modem connection for Internet requests and a special satellite receiver PC card connected to a satellite dish forms the return path. The combination allows data to be downDecember 1997  53