For our second build-along project, we decided to go for a Stockton bridge SWR meter, again a G-QRP project from the 2023 buildathon. The SWR bridge is pretty simple: RF goes in and out through a couple of connectors on a nice bit of wire that passes through a binocular core. This core has a […]
Rebuilding a Mosley triband yagi.
A while back I acquired most of a Mosley MP-33 triband which had been modified to be taken on a DXpedition 20ish years ago. The parts I got were the director, reflector and boom, so my task was to build a driven element. My approach was to try and replicate the original design as accurately […]
Xiegu G90: digital and CAT control.
My uBitx v6 has been my main FT8 rig for over a year, thanks to the (discontinued) Funtronics sound card which gives me full CAT control and sound in/out with a single USB port. This is a huge advantage with Windows, since the OS tends to change audio settings erratically on my machines, both of […]
Making a cheap LiFePO4 battery for SOTA.
I needed a good battery to power my Xiegu G90, so that I could carry it up hills and talk to strangers in my bid to join the SOTA community. In 2023 the general trend for portable lighteweight power is to buy a *premium* battery like the Bioenno pack–which are designed specifically for this purpose–or […]