marxy's musing on technology

Stephen, VK2BLQ, has suggested we try holding an HF vertical up with a drone but here's another idea for antenna installation in tall tr...

Recently there have been a constant stream of second hand Lenovo X201 laptops on ebay here. David Rowe mentioned when he visited that the X2...

Just saw this interesting gadget called a Skypi from RadWAV . It appears to be a 1W carrier transmitter for 40m that plugs in to the GP...

Inspired by the work of Peter, VK3YE , I visited the local hardware store to get bits for a 40m loop antenna. Purchased a 3m length of coppe...

This week an Ultimate3 QRSS/WSPR kit beacon kit I ordered arrived and this morning it was easily built. The display is super crisp. ...

I purchased a transistor tester kit from AliExpress a few weeks ago and it's a useful gadget for the workbench. Often when home brew ...

This week the ARNSW Home Brew Group was honoured with a visit from David Rowe, VK2DGR, who spoke about codec2, FreeDV, and the upcoming hard...

Just a note for others who might run in to the same issue. Freedv depends on libtiff4 which is not available for Ubuntu 14.10. Here's ho...

I've updated the iOS app WSPR Watch with support for iPad, iPhone 6 and 6+. The program is simpler than before but I think more us...

The easy solution Thanks to this post , from Greg, K17MT, here's what you do. sudo add-apt-repository ppa:ki7mt/wspr # press enter ...

Accidentally purchased a little quadcopter and then found that the expensive ones have come down in price since I last looked. These videos ...

For the past eight months we've been living in an apartment and while I enjoyed learning about antennas on a balcony, it's good to ...

Here's a sneak peak: It updates itself every few minutes but I am concerned about loading wsprnet.org too much.

Great day at Dural today. Particularly impressed with the home brew moving coil compass built for a model boat. I didn't mean to but end...

A busy week, media wise. I was on RN's Download this Show: Also wrote an opinion piece about how the BitTorrent technology can be ...

I'm interested in playing with some of the new virtualisation technologies, such as docker. For this stuff my usual go to toy, the Raspb...

Today was "balun day" which began with breakfast followed by a terrific talk from Mark, VK2XOF, about the theory and practice of b...

Up here on the 28th floor it was pretty windy today. The doppler wind radar looked pretty interesting. RNDSUP seems like a fun techno...

We're videoing radio again this week. Here we are in the Radio National studio talking about technology. Exciting news for people w...

I recently purchased an old crystal controlled Codan lunchbox radio and want to put it on 40 and 80m so I've found a rather nice DDS VFO...