Looking at the Heathkit HD-1416 Code Practice Oscillator
Today my Heathkit Code Practice Oscillator arrived. I was lucky enough to pick it up on eBay for a song, but the shipping took forever. Anyway, it’s a beautifully constructed unit, built from a multivibrator circuit, based around…
Read More »Interconnectivity where it is not expected
I was actively involved in packet radio here in Canberra in the 80’s and 90’s. Great stuff, and a ton of fun. We had a core group of probably 10 -15 people here who were active. I did…
Read More »Evolution of a simple PCB for Eurorack power control
As it would turn out, Amateur radio is a hobby pursued by many people who are interested in Electronics. I have always had a fascination for all things electrical in nature, and have spent my whole life making gadgets.
Read More »The 122G Project
(The cover photo for the project is Andrews dish (VK3CV/WQ1S) from the DUBUS article.) I encountered a fascinating project by a group of Amateur Operators, where they are re purposing a radar module made by a German company,…
Read More »Racal Matel 2c800 Field Phone
So, I was browsing the Internets a while ago, continuing my search for interesting ex military radio gear, and I encountered these awesome Racal Matel Field Phones. There were a couple of people selling them, so I picked…
Read More »Tuggeranong Hill Activation
Today, I activated Tuggeranong Hill (VK1/AC-038) again. Unfortunately, I was late leaving home, and the walk up took *much* longer than I expected, likely because of the staying inside with Covid (That’s my story, and I am sticking…
Read More »Using the USB ATTiny 85 boards
I have always loved the Arduino universe. I started originally with Microchip PIC devices, but once I discovered Arduino, my world changed :-). For the last year or so, I have been playing with a tiny board that…
Read More »The world of Raspberry Pi Clusters
(or – how to chuck a heap of computers into a small space… to do SDR functions.) So – One of my fellow Ham operators here in Canberra, Wade (VK1MIC) showed me a photo of his cluster of…
Read More »Building Hardware to Communicate with a LORA Satellite
A couple of months ago, a Spanish PicoSatellite (5cm x 5cm x 5cm) was launched called FossaSat-1 ( https://fossa.systems/ ). It was designed using open source principles and provides a LORA downlink on 70cm UHF using a standard…
Read More »QRP Labs Ultimate3S
Sooooo. A long time ago I discovered that I enjoyed using the Weak Signal Propagation Reporter (WSPR) to see how open various bands were during the day. I even went to various parks at lunchtime to set up…
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