Sunday, July 06, 2025

Proposed Australian FreeDV RADE1 net

I've had two good contacts VK3-VK5 using FreeDV RADE1 today. Quite a lot of stations on air.


It would be good to have a regular net for Australian stations (and anyone else who can hear us). To start with I suggest Sunday mornings from 11:00am Eastern time.

Speaking of FreeDV RADEV1, there's a great intro and reception demo from popular YouTube channel Tech Minds:


At one point he says "...the new RAIDV1 mode .. in my opinion has to be the best sounding digital mode I've heard to date." Nice.

Friday, July 04, 2025

Travelling with Meshtastic

I recently purchased a pair of Meshtastic capable heltec devices. As I live at a remote location I had never found any other nodes aside from my second unit. I can see one on the map at Woodend and I drove there but it was off air at the time I drove by. This week I travelled from Melbourne to Sydney CBD and I took a device with me. My device saw quite a few others along the way.

Interestingly it also picked up some signals while in flight either during taking off and when coming in to land. I don't think it saw any at cruising altitude.



There was never a good enough connection for a direct message but I did see some traffic on the default channel.


Meshtastic is built on top of LoRa and is capable of amazing range, mostly line of sight. I have much to learn about this technology but the idea of having a way to communicate, either direct or via a mesh network without internet or cell phone coverage is interesting. A lot of nodes are named after the callsign of the ham that owns them.

Wednesday, July 02, 2025

Tech Talk on ABC Radio - AI Slop

Artificial Intelligence is the biggest story in tech at the moment. But there are down-sides and unexpected consequences. 

One of them has a new name “AI Slop”. In other news, incredible remuneration packages are being offered to attract AI researchers to change jobs.

Peter Marks, a software developer and technology commentator from Access Informatics, joined Dom Knight on Nightlife to discuss the latest news in technology.  

https://www.abc.net.au/listen/programs/nightlife/nightlife-tech-talk-with-peter-marks/105483494