Thursday, October 23, 2025

Kanga pocket transmatch - goes up to 12

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To go with my fantastic QMX portable radio (now with SSB) I wanted a compact antenna tuner and so ordered the Kanga pocket transmatch . It...
Wednesday, October 22, 2025

Tech Talk on ABC Radio - Internet outage due to Amazon

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Flickr, snapchat, PlayStation and Amazon were among the businesses that suffered an outage due to a failure at Amazon Web Services in the US...
Tuesday, October 21, 2025

USB C PD power for QRP radios

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An idea mentioned to me by Ross, EX0AA. USB C Power Deliver (PD) lets the powered device ask for certain voltages and the power supply can a...
Monday, October 20, 2025

Pi PICO Debug demo

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With the uncertain future of the Arduino platform I've decided to look more deeply into the Raspberry Pi PICO platform. I ordered a Rasp...
Sunday, October 19, 2025

FreeDV Sunday net - very poor conditions

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There is a G1 Geomagnetic storm at the moment and local contacts were very difficult on 40m. We started the net there and I had contacts wit...

QRP AM transmitter from AliExpress

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A low power AM transmitter kit from AliExpress caught my interest. It was AU$30 and is crystal locked to 21MHz. The board is good quality an...
Monday, October 13, 2025

An excellent end fed unun from bh7jyr

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It's been very windy here and I worry that my main dipole for 40m might come down so as a backup I recently purchased a 1:64 unun for an...
Sunday, October 12, 2025

FreeDV Net - good rollup, terrible conditions

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14 stations were tuned in but few of us could hear each other. I'm in VK3 and could only talk with VK2 and VK5 so, like last week, no lo...