Posted by gerry

Having been emboldened by a successful conversion of my Thrustmaster F22 Flight Stick, I decided to try to capture all of the buttons on throttle too. A job that worked out easier than I expected as it turned out.

Continue reading...
Posted by gerry

Having done some more research, it turns out that the chips in the handle are not MCUs, or at least not all MCUs. A few are shift registers, and, according to this post, talk SPI. The post also has a bit of code to capture the buttons.So, despite having the matrix all built, if I can just use a Teensy and build on that code, all the better.

Continue reading...
Posted by gerry

During HF field day 2010, I had occasion to get some experience with the off-centre fed dipole, in this case, a commercially made unit from Buckmaster.
Prior to this, I had heard that OCF dipoles ‘are a compromise’, ‘are noisy’, ‘are deaf’, ‘have wildly varying radiation patterns’ and many other negative comments. During field-day, our experiences definitely gave me cause to doubt the nay-sayers.

Continue reading...
Posted by gerry

The DDS and related clock generation circuitry has made possible high accuracy, broad-banded programmable VFO functionality for very little money. Analogue Devices' AD9850 series offer HF frequencies for about 5. Higher frequencies can be had for not much more money, with the Silicon Labs SI570 with its near GHz maximum frequency offering the highest.

Continue reading...
Posted by gerry

I recently started using Arch as my primary distribution on my laptop. I made this change for a number of reasons... mainly that I did not like the direction that Ubuntu was going in, and I kind of missed the hands-on approach I had experienced with Slackware and Debian.  I wanted to recapture the control that first drew me to Linux nearly 20 years ago.

Continue reading...
Posted by gerry

The Eircom D1000 Zyxel Router

Continue reading...
Posted by gerry

The Galway VHF Group Amateur Radio club has been doing some improvements on the APRS network around Galway. This includes adding a weather station - EI2GCP-2  - and renaming the digipeater to EI2GCP-10, and adding iGate functionality.

Continue reading...
Posted by gerry

When I was young, about 11, I was lucky enough to be bought a Commodore 64, the computer that introduced a generation to computers, and likely launched thousands of careers in computing, mine included. It wasn't long before I started to feel constrained by the very basic version of BASIC that it ran... 2 character variable names, no labels, no loops apart from FOR, no allowances to structured programming whatsoever.

Continue reading...
Posted by gerry

I came across am interesting project at the Mayo Radio Experimenter's Club Rally earlier this year. A Wobbulator. A small board that would piggy-back on a Raspberry Pi and utilise an Analog Devices AD9840 Direct Digital Synthesiser as an RF source.

Continue reading...
Posted by gerry

I used to have a bunch of radios in my car; an IC7000 for HF, a Kenwood TM D710 for APRS/VHF/UHF and a Cleartone CM7 ex-PMR for 4m AM/FM. They were installed relatively stealthily, but when I came across the successor to the IC7000, the IC7100, I saw how I could aggregate all of this into a single radio.
So... long story short, I sold all the radios that were in the car and bought the IC7100

Continue reading...