This website contains notes on my amateur radio activities and projects that I have worked on.
First licensed in 1979, my main interest is weak signal operating on 144MHz and 10GHz, especially Moonbounce or EME (Earth-Moon-Earth) communication.
You can contact me via email at nielsm (at) btinternet.com
73 Niels, G8RWG
In May 2017 I built a simple RF Power Meter using a AD8313 rf power detector module from SV1AFN, an Arduino Nano and a LCD module. The meter was battery powered and it was calibrated for use at 144MHz using the output of my HF to 2m transverter via some variable attenuators. The meter worked well, either with an external attenuator or a directional coupler.
Elecraft announced the K4 transceiver in May 2019 and I saw the radio at Ham Radio, Friedrichshafen in June 2019. I placed an order for a K4D (with an optional K4HD should I need it), in July 2019. Units started shipping in November 2020, maybe delivery will be Q1 2021?
I recently installed a second-hand Radio Structures BM10T lattice mast for my 2m EME array. The BM10T is similar to a Versatower but has a simpler luffing arrangement with the wire attached to the bottom of the lattice section and running through two pulleys either side of the base post and up to the winch. The pulleys simply act as guides for the wire and provide no mechanical advantage. This makes luffing hard work with the antennas installed.
