marxy's musing on technology

A bloke with too many hobbies.

Saturday, June 28, 2025

Camping with VK3CDO

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Graeme, VK3CDO, is a friend from the Macedon Ranges Amateur Radio Club. He often shares his knowledge of bushcraft and this weekend we heade...
Sunday, June 22, 2025

AI and Amateur radio presentation

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This weekend I gave a talk to the Macedon Ranges Amateur Radio Club about how at least one dimension of Artificial Intelligence, Machine Le...
2 comments:
Wednesday, June 18, 2025

Iranian man on the train

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Today I caught a train from Southern Cross bound for Bendigo. At Footscray a man got on. He looked confused and clearly had almost no Englis...
1 comment:

Tech Talk on ABC Radio - Israel's use of technology for war

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As the world watches tensions and conflicts swell in the Middle East, what stands out is the use of technology in the military. From hacking...
Sunday, June 08, 2025

Remembering Bill Atkinson

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Very sad to hear this week that Bill Atkinson has died.  I vividly remember seeing a Macintosh computer for the first time.  At the time I ...
Wednesday, June 04, 2025

Tech Stuff on ABC Radio

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Do you feel that AI is advancing faster than anything else you've seen in history? And the pace at which AI is developing is overwhelmin...
Tuesday, June 03, 2025

Built the QMX kit - watch out for enamelled wire joints

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Like many people I was very excited by QRP-Labs work to bring sideband to the excellent, compact, high performance, digital rig, the QMX . I...
Thursday, May 29, 2025

On the media's "The divided dial" series about shortwave

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A friend alerted me to an interesting series of programs about shortwave from WNYC Studios. "Season Two of On the Media’s Peabody-winni...
1 comment:
Tuesday, May 27, 2025

The silencing of Voice of America - ABC RN program

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Thanks to Thomas at The SWLing Post for drawing this to my attention. ABC Radio National, of which I'm a past contributor, has a docume...
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Sideband receiver project in Silicon Chip magazine

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Fantastic to see a serious ham radio construction project in the June edition of Silicon Chip magazine.  The project by Charles Kosina, VK3...
1 comment:
Wednesday, May 21, 2025

Tech talk on ABC Radio

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The competition for our smartphone dollars is about to enter a new round. Google is previewing Android 16 this week and Apple will preview i...
Wednesday, May 14, 2025

QRP-Labs QMX excellent for portable operations

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I've been staying in Tasmania this week, on the north coast, near Devonport and naturally I wanted to bring some sort of radio gear alon...
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Saturday, May 10, 2025

Moorabbin Hamfest a blast again this year

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The Moorabbin & District Radio Club Hamfest must be one of the biggest in Victoria and it's always a good excuse to pick up some pa...
Wednesday, May 07, 2025

Technology talk on ABC Radio

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Artificial Intelligence continues to revolutionise our lives. Predictions from experts state that AI will likely automate or transform 50% t...
Sunday, May 04, 2025

AI in FreeDV presentation at the Bendigo Technology Festival

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The Bendigo Amateur Radio and Electronics club today held their first Bendigo Technology Festival. It was an ambitious affair with informati...
Thursday, April 24, 2025

RF Noise Bridge for antenna tuning?

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An early electronics project for me was to construct an RF noise bridge. This remarkably simple device, combined with a receiver, let me mea...
1 comment:
Wednesday, April 16, 2025

Rotary encoder in MicroPython

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Sample code for rotary encoder handling that I've found seems to double step with my encoder. I guess there's other that have half s...

Thonny alternative for MicroPython - MicroPico

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Recently, I've been enjoying developing embedded projects on an RP2040 zero board using MicroPython. The RP2040s are fast and cheap and...
Saturday, April 12, 2025

Low cost display and rotary encoder board for VFO building

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As part of my objective to take the SolderSmoke DC receiver forward to be a double sideband transceiver I've been messing about with an...
Wednesday, April 09, 2025

MicroPython OSError error numbers on RP-2040

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I've seen an OSError stack trace when trying to talk to an I2C device on the wrong address and wondered what EIO means. It would be nice...
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