Ham radio blog by OZ1BXM

It is Winter in Denmark right now. We had a lot of snow this December. As you can see in the picture below, our small garden is totally whit...

I need an 1:2 balun My 20m loop antenna has about 100 ohm impedance at the 14 MHz resonance frequency. My coax-cable is a 50 ohm type. Tran...

Ten months ago, I fixed the well-known Kenwood TS-850 ALC problem by lowering the resistor values on the DC-DC daughterboard (X59-1100-00) f...

Last month, I told you about my plans for a 20m delta loop antenna. But my plans have changed. The delta loop idea has been discarded, mainl...

This month I would like to share an idea from my sketchpad with you. I am planning to build a vertical delta-loop antenna for 20 meters. The...

I have moved to a new blogging platform. The old one was based on text only, and did not provide feeds or a reply function. This blog wil...