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Contents Vol.33, No.10 October 2020 SILICON CHIP www.siliconchip.com.au Features & Reviews 10 Satellite Navigation in Space Satnav signals, like GPS, can also be used in space to help determine the receiver’s position. This could be used to help with future space travel, like a manned landing on the Moon – by Dr David Maddison 32 Improved ADS-B Reception on a Computer Automatic Dependent Surveillance-Broadcast (ADS-B) is a system which helps track flights. In this article, we review a purpose-built USB dongle for ADS-B reception as well as ways to improve reception – by Jim Rowe 68 Review: The CAE SoundCam Now you can see sound! The Cae SoundCam uses a video camera and phased microphone array to provide visual and spectral analysis of sounds, so it’s not just for show – by Allan Linton-Smith It’s hard to believe that the same satellite signals that help you navigate while walking or driving could also be used to help with space travel – Page 10 100 The Matrox ALT-256 Graphics Card The Matrox ALT-256 is likely the world’s first computer graphics card. It was released in 1978 for S-100 bus computers and produces a monochrome display at 256 x 256 pixels (or a colour display with three cards) – by Hugo Holden Constructional Projects 22 D1 Mini LCD BackPack with WiFi This easy-to-build project combines a 3.5-inch touchscreen with an ESP8266based module to provide wireless internet access. It’s programmed using the Arduino IDE and can be used for a variety of tasks – by Tim Blythman The D1 mini BackPack combines the power of the Arduino with a touchscreen and WiFi. For example, we are using it to provide real-time weather updates – Page 22 36 Flexible Digital Lighting Controller Exactly a decade after our last one, we’re here to present a much improved Digital Lighting Controller that’s even more useful. While you can use it for Christmas lights, it’s definitely not limited to them – by Tim Blythman 72 USB SuperCodec – part three In the final part of the series we detail all the testing and construction procedures, and how to use it. There’s also a guide on connecting the SuperCodec to a computer and what software to use with it – by Phil Prosser 90 High Power Ultrasonic Cleaner – part two You’ve seen how the Ultrasonic Cleaner works last month, so now it’s time to build it, and the good news is that it’s self-calibrating – by John Clarke Your Favourite Columns Our new Flexible Digital Lighting Controller is a trailing-edge dimmer that can control up to 64 channels at 250W per channel. It’s also easily controlled via a two-wire serial interface – Page 36 48 Circuit Notebook (1) Automatic solar panel checker (2) Touch-switch using a 4011B IC (3) Induction headphones for hearing aids (4) NTP clock that works anywhere 61 Serviceman’s Log Decisions, decisions, decisions... – by Dave Thompson 85 Vintage Radio AWA model 501 console radio – by Associate Professor Graham Parslow Everything Else 2 4 51 98 Editorial Viewpoint Mailbag – Your Feedback Silicon Chip Online Shop Product Showcase 107 111 111 112 Ask SILICON CHIP Market Centre Notes and Errata Advertising Index The CAE SoundCam uses 64 MEMS microphones to help identify sound sources which it can then display visually. It’s useful for troubleshooting mechanical faults, finding sound leaks etc – Page 68 www.facebook.com/siliconchipmagazine