WSPR in the park at lunchtime
Inspired by Wade (VK1MIC) and Andrew’s (VK1AD) blog posts, I have decided to revive my old VK1ZDJ blog here and start posting what I hope are interesting articles. At the very worst, it allows me an environment where…
Read More »An Enclosure for the QRP Labs QCX 5W CW Transceiver
I have recently obtained a neat little radio from the clever folk at QRP Labs – the QCX-40. https://qrp-labs.com/qcx.html It is a single board CW transceiver, designed to operate on a single band from 80m through to 17m…
Read More »My First SOTA Activation – Tuggeranong Hill VK1/AC-038
Having attended the AGM for the local Canberra Region Amateur Radio Club, I discovered that a group of SOTA enthusiasts were planning on activating a number of hills in the Canberra region on 01Mar2018 at 0800UTC. This seemed…
Read More »An interesting portable NVIS antenna
I have been researching NVIS antennas and have encountered a few interesting military versions. The AS-2259 is one example which uses a 3m mast and set of two offset fed dipoles (7.56 m and 11.22 m) The dipoles…
Read More »SOTA Equipment
I’m relatively new to the whole SOTA hobby, so I am still learning as I go. My main portable gear is based on the following; FT817 – A beautiful 5W radio for HF, 15, 144 and 430 Mhz…
Read More »A Universal RFID key
RFID projects have been pretty prominent recently, ranging from projects here in Instructables, to our local Silicon Chip magazine in Australia publishing a RFID door lock project in their November issue. Even I recently purchased a RFID door…
Read More »Arduino ATMega326 Using the Oscillator pin
I just figured out how to use the oscillator pin of the AtMega328 chip to drive an additional component. I am working on a project that requires a 16Mhz clock to drive other electronics, and figured that the…
Read More »A Stylophone
I decided to make a Stylophone as a gift for my dad. I also documented the build process. It is purely Analog (No micro included) – which is a rarity for me. Here is the link to the…
Read More »An Ethernet connected watering system controller
I extended the relay controller design that I put up recently to do the task of being a watering system. Getting the code to fit into an AtMega328 was a bit tricky, I kept having stack overflow problems…
Read More »An Ethernet Relay Controller
As a recent project, I designed a cool relay controller that uses a state machine to control a set of relay outputs based on a user defined program. The initial task is to operate a set of Christmas…
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