KO7M - Ham Radio Blog

I know it has been forever since I started the Arduino beacon project and while the functionality is 90% or better complete, the project has...

With my renewed interest in old-tyme radios, I have decided that I need to have a good adjustable lab bench power supply that will give me f...

After a couple years of looking, I have located a National SW-3 receiver that is in good shape.  It came with a couple sets of coils, ...

Wow, has it really been nearly three months since I updated this blog?  Very sorry to be away so long.  I have a couple of new short posts t...

My apologies for the long time between postings.  I have been a bit preoccupied with my son's cancer treatments.  I hope to be able to r...

Now that the Atmel CPU is back alive, I have been back working on my beacon code.  The underlying beacon code is finished for the most part....

Having smoked my first AVR CPU, I now face the need to be able to reset the CPU fuses regardless of their current settings.  After some sear...

I have been having a lot of fun upgrading my toolset for building AVR applications and hardware solutions.  I have been playing around with ...

As the Arduino beacon project has progressed, I have spent some time trying to minimize the code size.  For one thing, there are a number of...

I have built one of the fine data logging shields for Arduino from the fine folks at Adafruit  to further clean up my beacon project rats ne...