Optimizing Multi-Band Wire Antennas

Simple pieces of wire are not the most sexy ham radio antennas, but they are probably the most ubiquitous, if … More

An Optimized 20 Meter Vertical Collinear Antenna

After a few months of pondering how to build a simple pull-up vertical collinear antenna, I think I’ve finally got … More

Here are the slides from a presentation I gave to the Valley Radio Club on August 4, 2017. Variations on … More

The IC-745, like the older ICOMs, is built very robustly with parts that you can see without a magnifying glass, … More

Update 12/21/17: Added section on upgrading the reference crystal to a high stability OCXO clock. The 30 year old ICOM … More

I have had a chance to use HDSDR a little more with the RTL-SDR pan-adapter for my IC-751A transceiver and have … More

The simple 20 meter pull-up vertical antenna I described last time has been working well. I’ve been putting my efforts … More

I have a nice off-center-fed dipole (OCFD) antenna that is my mainstay for multi-band HF work, but I would like to … More

Once I had the RTL-SDR radio working as a pan-adapter for my IC-751A, I quickly became interested in seeing … More

There is little doubt that the RTL-SDR tuner dongle radio receivers are the hottest new thing for the amateur radio experimenter. … More