marxy's musing on technology

A bloke with too many hobbies.

Wednesday, April 08, 2015

Vale David Crooks

›
I'm so sad to mark the death of my beloved step-brother David Crooks. A wonderful man and dear friend. Last Thursday he was looking...
3 comments:
Saturday, February 28, 2015

Built a smaller quadcopter

›
A new build from parts ordered from China. This time I'm using the excellent OpenPilot flight controller. Here's an early flight in ...
Sunday, February 22, 2015

Wyong field day 2015 - Damp but entertaining

›
The weather wasn't great for the big feature of the Wyong field day, the car boot sale. The ARNSW Home Brew group had a great display a...

Built a larger quadcopter

›
The tiny drones are great for indoors, but to carry cameras I needed something larger. A collection of parts and a 450mm frame was ordered a...
Thursday, February 12, 2015

Tiny Quadcopters - Hubsan X4 and friends

›
We are having too much fun at the office (during lunch breaks) flying tiny quadcopters. The best of them seems to be the Hubsan X4 . ...
Sunday, February 01, 2015

OpenRadio SDR kit build

›
Linuxconf this year in Aukland had a radio track where a low cost software defined radio receiver with some limited ability to transmit was...
6 comments:
Monday, January 26, 2015

Raising antennas with a drone

›
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...

Good value laptop for ham radio use - Lenovo X201

›
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...
2 comments:
Sunday, January 11, 2015

Skypi 40m transmitter controlled by Raspberry Pi

›
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...
Monday, December 22, 2014

Copper pipe loop for 40m

›
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...
1 comment:
Saturday, December 13, 2014

Built an Ultimate3 Beacon

›
This week an Ultimate3 QRSS/WSPR kit beacon kit I ordered arrived and this morning it was easily built. The display is super crisp. ...
Sunday, December 07, 2014

Useful M8 transistor tester

›
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 ...
Tuesday, December 02, 2014

Digital voice ove HF radio talk

›
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...
Saturday, November 29, 2014

Install freedv on Ubuntu 14.10

›
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...
3 comments:
Friday, November 07, 2014

New version of WSPR Watch for iOS is out

›
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...
6 comments:
Sunday, November 02, 2014

wspr on Ubuntu 14.10

›
The easy solution Thanks to this post , from Greg, K17MT, here's what you do. sudo add-apt-repository ppa:ki7mt/wspr # press enter ...
Saturday, October 18, 2014

Another hobby - Quadcopters

›
Accidentally purchased a little quadcopter and then found that the expensive ones have come down in price since I last looked. These videos ...
Sunday, September 07, 2014

Back home, back on lower bands

›
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 ...
Saturday, August 16, 2014

iPad version of WSPR Watch coming

›
Here's a sneak peak: It updates itself every few minutes but I am concerned about loading wsprnet.org too much.
Sunday, July 27, 2014

New transceiver for the shack - with valves!

›
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...
‹
›
Home
View web version
Powered by Blogger.