This year we wanted to seriously compete in CQWW CW from the ED1R contest station. While the station is equipped reasonably on all bands with Yagis and verticals, there were no dedicated receiving antennas available - yet. Out of my former contest participation from other stations, I know that when it comes down to winning a CQWW, dedicated receiving antennas are a must-have. Beverages provide great directivity and reduce the EU clutter significantly.
Today, I could measure the performance of the well-known ICE bandpass filters. Read more about the measurement results.
Lately, I needed a 3dB splitter for an HF (1…30MHz) measurement project. Instead of buying myself a splitter, I decided to build it on my own. After measuring the performance I am satisfied with the result.