Silicon ChipMarket Centre - February 2003 SILICON CHIP
  1. Outer Front Cover
  2. Contents
  3. Publisher's Letter: Queensland TV repairs need a safety check, not a licence
  4. Feature: PICAXE: The New Millennium 555? by Stan Swan
  5. Project: The PortaPAL Public Address System by John Clarke and Leo Simpson
  6. Review: WM232-UHF Wireless Modem by Peter Smith
  7. Project: 240V Mains Filter For Hifi Systems by Ross Tester
  8. Project: The SC480 50W RMS Amplifier Module; Pt.2 by Peter Smith and Leo Simpson
  9. Product Showcase
  10. Feature: Using Linux To Share An Optus Cable Modem; Pt.4 by John Bagster
  11. Project: A Windows-Based EPROM Programmer; Pt.3 by Jim Rowe
  12. Weblink
  13. Vintage Radio: Aligning TRF & superhet radio front-ends by Rodney Champness
  14. Feature: Tracking Down An Elusive Fault In Windows XP by Stephen Davis
  15. Notes & Errata
  16. Market Centre
  17. Advertising Index
  18. Book Store
  19. Outer Back Cover

This is only a preview of the February 2003 issue of Silicon Chip.

You can view 27 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:
  • PICAXE: The New Millennium 555? (February 2003)
  • The PICAXE: Pt.2: A Shop Door Minder (March 2003)
  • The PICAXE, Pt.3: Heartbeat Simulator (April 2003)
  • The PICAXE, Pt.4: Motor Controller (May 2003)
  • The PICAXE, Pt.5: A Chookhouse Door Controller (June 2003)
  • The PICAXE, Pt.6: Data Communications (July 2003)
  • The PICAXE, Pt.7: Get That Clever Code Purring (August 2003)
  • The PICAXE, Pt.8: A Datalogger & Sending It To Sleep (September 2003)
  • The PICAXE, Pt.8: The 18X Series (November 2003)
  • The PICAXE, Pt.9: Keyboards 101 (December 2003)
Items relevant to "The PortaPAL Public Address System":
  • PortaPAL PCB patterns (PDF download) (01103031-4) (Free)
  • Panel artwork for the PortaPAL (PDF download) (Free)
Articles in this series:
  • The PortaPAL Public Address System (February 2003)
  • 12V SLA Battery Float Charger (March 2003)
  • The PortaPAL Public Address System; Pt.2 (March 2003)
  • Fitting A Wireless Microphone To The PortaPAL (August 2003)
Items relevant to "The SC480 50W RMS Amplifier Module; Pt.2":
  • SC480 amplifier module PCB, TO-218 transistor version [01201031] (AUD $12.50)
  • SC480 amplifier module PCB, TO-3 transistor version [01201032] (AUD $15.00)
  • SC480 amplifier module power supply PCB [01201033] (AUD $5.00)
  • SC480 50W RMS Amplifier Module PCB patterns (PDF download) [01201031-3] (Free)
Articles in this series:
  • The SC480 50W RMS Amplifier Module (January 2003)
  • The SC480 50W RMS Amplifier Module; Pt.2 (February 2003)
Items relevant to "Using Linux To Share An Optus Cable Modem; Pt.4":
  • zplog script (Software, Free)
Articles in this series:
  • Using Linux To Share An Optus Cable Modem; Pt.1 (November 2002)
  • Using Linux To Share An Optus Capble Modem; Pt.2 (December 2002)
  • Using Linux To Share An Optus Cable Modem: Pt.3 (January 2003)
  • Using Linux To Share An Optus Cable Modem; Pt.4 (February 2003)
Items relevant to "A Windows-Based EPROM Programmer; Pt.3":
  • Upgraded Software for the EPROM Programmer (Free)
  • Windows-Based EPROM Programmer PCB patterns (PDF download) [07112021-5] (Free)
  • Panel artwork for the Windows-Based EPROM Programmer (PDF download) (Free)
Articles in this series:
  • A Windows-Based EPROM Programmer (November 2002)
  • A Windows-Based EPROM Programmer; Pt.2 (December 2002)
  • A Windows-Based EPROM Programmer; Pt.3 (February 2003)
  • Upgraded Software For The EPROM Programmer (June 2004)

Purchase a printed copy of this issue for $10.00.

MARKET CENTRE Cash in your surplus gear. Advertise it here in Silicon Chip. CLASSIFIED ADVERTISING RATES Advertising rates for this page: Classified ads: $20.00 (incl. GST) for up to 20 words plus 66 cents for each additional word. Display ads: $33.00 (incl. GST) per column centimetre (max. 10cm). Closing date: five weeks prior to month of sale. To run your classified ad, print it clearly in the space below or on a separate sheet of paper, fill out the form & send it with your cheque or credit card details to: Silicon Chip Classifieds, PO Box 139, Collaroy, NSW 2097. Or fax the details to (02) 9979 6503. Taxation Invoice ABN 49 003 205 490 _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ _____________ Enclosed is my cheque/money order for $­__________ or please debit my ❏ Bankcard   ❏ Visa Card   ❏ Master Card Card No. Signature­­­­­­­­­­­­__________________________ Card expiry date______/______ Name ______________________________________________________ Street ______________________________________________________ Suburb/town ___________________________ Postcode______________ www.siliconchip.com.au FOR SALE WEATHER STATIONS: Windspeed & direction, inside temperature, outside temperature & windchill. Records highs & lows with time and date as they occur. Optional rainfall and PC interface. Used by Government Departments, farmers, pilots, and weather enthusiasts. Other models with barometric pressure, humidity, dew point, solar radiation, UV, leaf wetness, etc. Just phone, fax or write for our FREE catalogue and price list. Eco Watch phone: (03) 9761 7040; fax: (03) 9761 7050; Unit 5, 17 Southfork Drive, Kilsyth, Vic. 3137. ABN 63 006 399 480. UNIVERSAL DEVICE PROGRAMMER: Low cost, high performance, 48-pin, works in DOS or Windows incl. NT/2000. $1364. Universal EPROM programmer $467.50. Also adaptors, (E)EPROM, PIC, 8051 programmers, EPROM simulator and eraser. Dunfield C Compilers: Everything you need to develop C and ASM software for 68HC08, 6809, 68HC11, 68HC12, 68HC16, 8051/52, 8080/85, 8086, 8096 or AVR: $198 each. Demo disk available. ImageCraft C Compilers: 32-bit Windows IDE and compiler. For AVR, 68HC­ 08, 68HC11, 68HC12, 68HC16. $385.00 Atmel Flash CPU Programmer: Handles the 89Cx051, 89C5x, 89Sxx in both DIP and PLCC44 and some AVR’s, most 8-pin EEPROMS. Includes socket for serial ISP cable. $220, $11 p&p. SOIC adaptors: 20 pin $132.00, 14 pin $126.50, 8 pin $121.00. Full details on web site. Credit cards accepted. GRANTRONICS PTY LTD, PO Box 275, Wentworthville 2145. (02) 9896 7150 or http://www.grantronics.com.au CENTRAL COAST FIELD DAY, SUNDAY 23rd FEB: Don’t miss Australia’s biggest Amateur Radio exhibition and sale of new and used radio and communication equipment at Wyong Race Course, just 1 hour north from Sydney. Gates open 8.30am. Special Field Day bargains from traders and tons of disposals gear in the flea February 2003  93 Silicon Chip Binders New New New Mark22-SM Slimline Mini FM R/C Receiver REAL VALUE AT $12.95 PLUS P&P These binders will protect your copies of SILICON CHIP. They feature heavy-board covers & are made from a dis­ tinctive 2-tone green vinyl. They hold up to 14 issues & will look great on your bookshelf.  80mm internal width • • • • • 6 Channels 10kHz frequency separation Size: 55 x 23 x 20mm Weight: 25gm Modular Construction Price: $A129.50 with crystal Electronics PO Box 580, Riverwood, NSW 2210. Ph/Fax (02) 9533 3517 Or fax (02) 9979 6503; or ring (02) 9979 5644 & quote your credit card number. Use this handy form Enclosed is my cheque/money order for $________ or please debit my ❏ Bankcard ❏ Visa   ❏ Mastercard Card No: _________________________________ Card Expiry Date ____/____ Signature ________________________ Name ____________________________ Address__________________________ __________________ P/code_______ 94  Silicon Chip Need prototype PC boards? We have the solutions – we print electronics! Four-day turnaround, less if urgent; Artwork from your own positive or file; Through hole plating; Prompt postal service; 29 years technical experience; Inexpensive; Superb quality. Printed Electronics, 12A Aristoc Rd, Glen Waverley, Vic 3150. Phone: (03) 9545 3722; Fax: (03) 9545 3561 Call Mike Lynch and check us out! We are the best for low cost, small runs. For price list, write Acetronics 5/32 Seton Rd, Moorebank 2170 or email acetronics<at>acetronics.com.au Phone (02) 9600 6832 www.acetronics.com.au  Buy five and get them postage free! Silicon Chip Publications PO Box 139 Collaroy Beach 2097 AV-COMM P/L, 24/9 Powells Rd, Brookvale, NSW 2100. Tel: 02 9939 4377 or 9939 4378. Fax: 9939 4376; www.avcomm.com.au email: youngbob<at>silvertone.com.au Website: www.silvertone.com.au  SILICON CHIP logo printed in gold-coloured lettering on spine & cover Price: $A12.95 plus $A5.50 p&p. Available only in Australia. Satellite TV Reception International satellite TV reception in your home is now affordable. Send for your free info pack containing equipment catalog, satellite lists, etc or call for appointment to view. We can display all satellites from 76.5° to 180°. Microzed.com.au PIC CHIP SPECIALIST PO Box 634 ARMIDALE 2350 (296 North Cooke’s Rd) Ph: (02) 6772 2777 – may time out to Mobile 0438 277 634. Fax: (02) 6772 8987 market. Exhibits by clubs and groups with interests ranging from vintage radio, packet radio, scanning, amateur TV and satellite. www.ccarc.org.au Ph (02) 4340 2500. RCS HAS MOVED to 41 Arlewis St, Chester Hill 2162 and is now open, with full production. Tel (02) 9738 0330; Fax 9738 0334. rcsradio<at>cia.com.au; www.cia.com.au/rcsradio KITS KITS AND MORE KITS! Check ’em out at www.ozitronics.com LABJACK USB DATA ACQUISITION MODULE features 8 12bit analog inputs, 20 digital I/O, 2 analog outputs and high speed counter. Free software and ActiveX component. DAS005 Parallel Port Data Acquisition Module features 8 12bit Analog inputs, 4 digital I/Ps & 4 digital O/Ps. Free windows software. FAB Programmable Logic Controllers. Low cost, high performance. Programming software and SCADA software free. Heaps of features. Full details and credit card ordering available at: www.oceancontrols.com.au USB KITS: Stepper Motor Controller, DTMF Transceiver, Thermometer, DDS HF Generator, Compass, 4-Channel Voltmeter, I/O Relay Card. Also available: Digital Oscilloscope, Temperature Loggers, VHF Receivers and USB Active X (and USBDOS.exe file) to control our kits from your application. www.ar.com.au/~softmark PCBs MADE, ONE OR MANY. Any format, hobbyists welcome. Sesame Elec­tronics (02) 9586 4771. sesame777<at>optusnet.com.au; http:// members.tripod.com/~sesame_elec Audio, Video, S-Video and VGA cables distribution amps, switchers, adaptors, price lists at: www.questronix.com.au continued next page www.siliconchip.com.au Subscribe & Get This FREE!* *Australia only. Offer valid only while stocks last. Positions At Jaycar We are often looking for enthusiastic staff for positions in our retail stores and head office at Silverwater in Sydney. A genuine interest in electronics is a necessity. Phone 02 9741 8555 for current vacancies. OSCILLOSCOPE Hitachi Dual 20MHz $250.00, Ango Eprom Eraser $30.00, three 16x2 LCD $20.00. Sydney 0411 965 960. KIT ASSEMBLY Contact: Silicon Chip Publications, PO Box 139, Collaroy, NSW 2097 Phone Orders: (02) 9979 5644 Fax Orders: (02) 9979 6503 Email Orders: office<at>silchip.com.au Classifieds: continued from p.92 ROBOT KITS, books, accessories. Check them out at: www.robotics.com. au Free catalogue 1800 000 745. HALF RETAIL PRICE! Used Solar Panels, Inverters, Batteries, Surplus Components and more. See our specials pages at www.kcsolar.com.au NOW AVAILABLE FROM Acetronics....................................94 Altronics................................. 66-68 Av-Comm Pty Ltd.........................94 ADD SPEECH, SONAR OR DIRECTION SENSING to your next project. Fully contained modules. Full specs on website www.robotparts.com.au Ph 0412 350671 THAT’S RIGHT! Buy a 1- or 2-year subscription to SILICON CHIP magazine and we’ll mail you a free copy of “Electronics TestBench”, just to say thanks. Advertising Index NEVILLE WALKER KIT ASSEMBLY & REPAIR: •  Australia wide service •  Small production runs •  Specialist “one-off” applications Phone Neville Walker (07) 3857 2752 Email: flashdog<at>optusnet.com.au WANTED PARAMETERS OSCILLOSCOPE for parts. Clinton 02 9817 2543 or email wongcl<at>ozemail.com.au Clarke & Severn...........................79 Dick Smith Electronics........... 28-31 Eco Watch....................................93 Elan Audio....................................83 Emona Instruments......................21 Grantronics..................................93 Harbuch Electronics.....................65 Instant PCBs................................94 Hy-Q International........................79 Jaycar .............................. 45-52,95 JED Microprocessors................5,79 Kalex............................................83 Microgram Computers...................3 MicroZed Computers..............79,94 Oatley Electronics........................23 Printed Electronics...................... 94 EARLY HI FI’S AMPLIFIERS, Speakers, Turntables, Valves, Books ; Quad, Leak, Pye, Lowther, Ortofon, SME, Western Electric, Altec, Marantz, McIntosh, Goodmans, Wharfedale, Tannoy, radio and wireless. Collector/Hobbyist will pay cash. 02 9440 1267. johnmurt<at> highprofile.com.au Procopy........................................79 Quest Electronics.........................79 RCS Radio...................................94 RF Probes...............................79,83 Silicon Chip Binders................53,95 Silicon Chip Bookshop..........96,IBC Silicon Chip TestBench..............IFC www.siliconchip.com.au Silvertone Electronics.............79,94 Soundlabs Group.........................79 Splat Controls..............................43 Telelink Communications....79,OBC Project Reprints – Limited Back Issues –Limited One-Shots If you’re looking for a project from ELECTRONICS AUSTRALIA, you’ll find it at SILICON CHIP! We can now offer reprints of all projects which have appeared in Electronics Australia, EAT, Electronics Today, ETI or Radio, TV & Hobbies. First search the EA website indexes for the project you want and then call, fax or email us with the details and your credit card details. Reprint cost is $8.80 per article (ie, 2-part projects cost $17.60). SILICON CHIP subscribers receive a 10% discount. We also have limited numbers of EA back issues and special publications. Call for details! visit www.siliconchip.com.au or www.electronicsaustralia.com.au www.siliconchip.com.au _________________________________ PC Boards Printed circuit boards for SILICON CHIP projects are made by: RCS Radio Pty Ltd. Phone (02) 9738 0330. Fax (02) 9738 0334. February 2003  95