D-STAR Presentation & Demonstration

Tuesday 8th December 2009

Mike G1ZRN is delivering a talk on D Star on Tuesday 8th December.

Along with the talk will be a demonstration of D Star capabilities with plenty of opportunities to ask questions about this new technology.  The talk will start at 8pm at the Hallow Scout HQ.

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D-STAR (Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification developed as the result of research by the Japan Amateur Radio League to investigate digital technologies for amateur radio. While there are other digital on-air technologies being used by amateurs that have come from other services, D-Star is one of the first on-air standards to be widely deployed and sold by a major radio manufacturer that is designed specifically for amateur service use.

D-Star compatible radios are available on VHF and UHF and microwave amateur radio bands. In addition to the over-the-air protocol, D-Star also provides specifications for network connectivity, enabling D-Star radios to be connected to the Internet or other networks and provisions for routing data streams of voice or packet data via amateur radio callsigns.

WRAA Talk - Homebrew PCB's 14th July

Mike G3TGD is coming over to WRAA to provide us with an insight into the trials of homebrewing PCB's, Mike explains......

For many years my home brew equipment has been made using a variety of circuit techniques, Veroboard, hand drawn PCB’s, rub down transfers, Manhattan techniques, New Jersey Island cutter and dead bug.

But the world has been changed, lots of good designs are available on the web with downloadable PCB layouts, and good quality layout software can be downloaded for free. Many of the exciting newer circuit techniques, DDS and signal processing for software radio for example are only accessible with surface mount devices – which require a bit more than a Dalo pen.