marxy's musing on technology

I've previously posted here about the Australian Government's Review of Australian Broadcasting in the Asia Pacific (now closed f...

Recently I've been recording phone interviews which are turned in to stories for the GovHack website. The dictation recorder I'v...

The incredible popularity of FT8 has come at the cost of other digital modes. I like chatting keyboard to keyboard with PSK31 or RTTY but at...

I very much enjoyed building the QCX CW transceiver and there have been rumours that QRP-Labs was working on a sideband version. It seem...

While my iOS phone is undoubtedly the computing device used most often in my day, when I want to do some serious computing work I use macOS ...

I've just returned from a few nights away in northern NSW. On this occasion the driving was shared with another ABC alumni, Peter Cave...

Inspired by the fascinating talk by Hans Summers I mentioned recently, I ordered a QCX transceiver kit with filter for 20m. Hans criticis...

Arriving in Adelaide after the spectacular Great Ocean Road, David, VK5DGR , was kind enough to invite me to stay with him. I knew I was in ...

The main attraction of my current trip has been the drive along the Great Ocean Road from about Geelong over towards Adelaide. The road...

In my current van expedition I've been dropping in to a few ham radio friends. On my way south I visited Peter, VK3RV, who I met on the ...

It's an old van and so far I've replaced the differential, rear bearings, battery and tyres. Yesterday I was rather lost on muddy lo...

I must admit I've been hesitant about this, but touring around in a camper van wondering anxiously about where the next toilet will be...

Ross, VK1UN, has built a nifty interface from the FL2K VGA dongle to some low pass filters for transmitting WSPR, he writes: I’ve gone ahe...

Ross, VK1UN, based in Victoria has been generating WSPR RF using the Weaver method in GNURadio and transmitting with an FL2K VGA dongle ac...

Ross, VK1UN, has been experimenting with generating WSPR RF using the FL2K VGA dongle. The waveform is pretty rough and of course a low pass...