Home » Amateur Radio

Should You Use Off-Brand Batteries in Two-Way Radios?

I recently read an article on the web that attempted to discuss whether or not you should use ‘off brand’ batteries in handheld devices. It resoundingly said ‘no’. The single argument that it provided was that the radio…

Read More »

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 »

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 »

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…

Read More »

Xiegu G90

I recently gave myself a small Christmas gift of a Xiegu G90. I have been eyeing them off for a number of months, and a large client order associated with one of my businesses provided the funds to…

Read More »

Finally finished my DMR hotspot

Success! After initially putting together a DMR hotspot based on a MMDVM hat mounted on a Raspberry Pi and configuring with a pi-star image in December last year, I finished putting together the enclosure for it today. I…

Read More »