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Winterfest Ham Radio Meet

Some pictures from the recent Winterfest HAM radio meeting.
Categories: Electronics

Non-Emissive Air-Band Receiver (Implementation & Use)

A semi-finalised implementation of the passive air-band receiver and field testing while I was travelling in the US.
Categories: Electronics

Strange Speed of Sound Result

I get oddly low results when attempting to measure the speed of sound in Water and Aluminium.
Categories: Electronics

Fremodyne VHF AM/FM Receiver

An experimental solid-state Fremodyne AM/FM Receiver for VHF.
Categories: Electronics

Helicopter Rescue at Queenscliff Headland

A short video of the daring helicopter rescue I awoken to this morning.
Categories: Electronics

Estimating The Size Of The ISS And STS

My quick go at estimating the size of the International Space Station and Space Shuttle Orbiter from the wonderful Thierry Legault solar transit photograph.
Categories: Electronics

More Sports Ears Related Musings

More compatible receivers and a few circuits related to the system.
Categories: Electronics

Sports Ears Broadcast Receivers

The guts of an AFL Sports Ears receiver, what you get for your money and how to build or buy your own compatible receiver for significantly less.
Categories: Electronics

Phantom-Powered Active Loop Receive Antenna for 30 Metres

A tuned loop antenna with an active push-pull buffer featuring phantom powering via the coax feed.
Categories: Electronics

Half-life Of Technetium-99m

Measurement of the half-life of Technetium-99m.
Categories: Electronics

Tim Bray · A Story of O

Java DZone - 7 hours 14 min ago

‘Developer mindshare’... what’s that, and why would Oracle care?”

Categories: Java

IceCube Builder on the NetBeans Platform

Java DZone - 7 hours 46 min ago

IceCube is a complete integrated environment for the simple authoring and publishing of complex and fully interactive 3D animations enriched by customizable and dynamic 2D interfaces. The sequences can be easily composed with the IceCube Builder, distributed with a standalone IceCube Player and directly projected on the web with IceCube WebView. There is also a multi-touch enabled version of the IceCube Player that let the user navigate the 3D model using multi-finger gesture and interact with the 2D widgets. For more information visit the IceCube website.

Categories: Java

Enterprise Integration Patterns: Request Reply Hello World example

Java DZone - 10 hours 4 min ago

How to implement Request Reply Pattern

Categories: Java

Infinispan 4.1.0.FINAL released!

Java DZone - 10 hours 13 min ago

Infinispan is an open source data grid platform, providing a highly scalable, low-latency in-memory key/value store which can act as a cloud-ready NoSQL database. 4.1.0.FINAL has just been released and this release brings powerful features including new client/server modules in addition to peer-to-peer operation, support for non-JVM clients, and memcached compatibility.

Categories: Java

What's Oracle-Google Lawsuit All About?

Java DZone - 10 hours 22 min ago

Does an in depth analysis of the lawsuit. The upshot: it's about preventing fragmentation of Java and forcing Google to pay a license fee to Oracle for licensing the Java-like technology behind Android. Plus, it's Oracle getting in on the earning potential of the platform. Suprisingly, it has very little to do with open source.

Categories: Java

How I Learned to Stop Worrying and Love the New Axis of Evil (Oracle)

Java DZone - 11 hours 3 min ago

There’s a wide sense of lament since Oracle has taken over Sun and their intellectual property, including MySQL, Java, Solaris and their hardware sales business. I’d say the average observer of this process might use the terms “slow moving train wreck”. I doubt they are far off on this one.

Categories: Java

The Joy of Clojure: Thinking the Clojure Way - Book Review

Java DZone - Thu, 02/09/2010 - 23:29

This review is based on an MEAP version of the book, which means that it is a work in progress and not all of the chapters are available yet. So, my remarks might not be relevant to the final version. Even though the entire book is not available yet, the chapters that are out are good and offer practical and useful information for those who are willing to learn clojure and understand 'the clojure way'.

Categories: Java

What is Dalvik?

Java DZone - Thu, 02/09/2010 - 22:08

When it comes to the Oracle lawsuit against Google regarding Android, many sites and news outlets say that “Android applications are written in Java”.

Categories: Java

OSGi Readiness — Loading Classes

Java DZone - Thu, 02/09/2010 - 22:05

In my previous post on “OSGi Compliance”, I discussed the idea of making libraries ready for OSGi without depending on OSGi directly. In light of BJ’s comment I will refer from now on to OSGi “Readiness” rather than Compliance, as the latter term is easily confused with the concept of a framework implementation that complies with the OSGi specification.

Categories: Java

How to improve modularity and extensibility of web-apps using OSGi

Java DZone - Thu, 02/09/2010 - 22:04

This blog deals about why and how to use OSGi in web applications

Categories: Java
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