marxy's musing on technology

I enjoy using digital modes. My favourite used to be PSK31 and these days I find Olivia 8/250 excellent for chatting to people who have high...

Our "tech life" affects every member of the family. Scams, supporting the elderly (who are particularly vulnerable to scams), and ...

Component testers are handy for doing a quick check of components grabbed from the junk box. Those little coloured rings get smaller every y...

The termination insensitive amplifier described by W7ZOI & K3NHI is a useful building block for the RF home constructor. I've been ...

Yesterday, in a Melbourne park, I had the pleasure of a catch up with a bunch of old friends. Ham Radio Home brew hero, Peter, VK3YE, was th...

Nightlife Tech Guru Peter Marks, a software developer and technology commentator from Access Informatics, joined Philip Clark on Nightlife t...

MeSQUAREs are excellent. I've purchased them from QRPme in the past and used them with great success. I get through them very quickly a...

On ABC Radio Nightlife I talked about Australian Government's efforts to reign anti-competitive actions by multi-national tech giants. A...

The applications of AI (machine learning) to radio are fascinating me at the moment. This is a simple experiment where I recorded some SSB a...

Check out this trailer for a program covering the history of computers, and microcomputers, in Australia. So many memories for me. "An ...

FreeDV , which bundles up the very low bit rate voice codec, Codec2 and an Orthogonal Frequency Division Multiplexed (OFDM) modem that can s...

Scammers are a real threat to us all. Australians lost billions of dollars last year. Nightlife Tech Guru Peter Marks, a software developer ...

Lots of useful parts for sale at good prices. I bought PL-259 crimp connectors for $3 each instead of the much higher prices I see them onli...

The Apple Vision Pro is a product they've been working towards for many years. The software progress has been public, in the form of ARK...

When I wanted to calculate something in the radio shack, I used to google for the formula and then execute it on a scientific calculator. Ju...

I generally use superglued on MePads from QRPme but burn through them at a great rate. Recently I had a go at cutting insulating tracks on ...

Peter Marks, software developer and technology commentator from Access Informatics joined Dom Knight with all the latest in tech news. It...

Recently I've been working on an AM transmitter for 40m. It occurred to me that FM should be much simpler to produce. I had ordered some...

A new online safety code of practice to protect children online has been released by the Digital Industry Group for public consultation. The...

The (now ABC) station called 3LO turned 100 last week. The ABC pulled out all the stops to put on a wonderful live broadcast followed by an ...