Tag Archives: Homebrew

The LSWC 2018 Construction Contest

Lincoln Shortwave Club Posted on by

Wednesday 21st saw the LSWC hold their annual Construction Contest for the Joe Rose Memorial Trophy. Last year saw us two different versions of ATV transmitter. One being for home use including a partly assembled water cooled power amplifier (For an update see below) built by Adrian M0NWK. The second, and also the winner for last year, being a fully portable transceiver in a case built by Jason G7KWP. Adrian M0NWK This year Started off with a similar theme. Adrian M0NWK, started off by showing us his Arduino powered controller for a comtech 23cm ATV transmitter.             … Continue reading →

Arduino Satellite Controller Motor Control

Lincoln Shortwave Club Posted on by

This part of the project is to help you understand how we are going to control the motors of the rotator and we are deviating from the 2rpm motor to a higher rpm to be able to quickly move from one location to another at a higher speed then slow down to be able to follow the path of the satellite. In the previous post I gave links to the parts needed and for this part of the project, we will be using the H Bridge, 2 motors, and the Arduino Nano. I have found a good video which explains … Continue reading →

Cheap Lab Power Supply

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For the Homebrewer, having a multi voltage power supply can be very handy especially if you are just experimenting. A cheap switched power supply used in computers can give you all the power you need for your experiments, but the problem is that it will not power up when disconnected from the computer. The solution is easier than you think, due to the fact that there is a standard colour code used by most manufactures of ATX power supplies and you don’t need to open the box to get it up and running. Although there is a lot of wires, … Continue reading →