Is there really a danger of “the sky falling on our heads”? Lightning protection of our station and our house is always a move in the right direction. Let’s see how it is done and […]

Recently I have noticed that there is a lot of interest in the amateur radio community regarding baluns-chokes with ferrites, the placement of which is intended to reduce returned and unwanted RF. Introduction Most of […]

Hamclock is a handy application able to show: accurate time, world map & time zone, solar activity, sunrise and sunset times (grey line), DX Cluster Spots, Beam heading & Maidenhead Grid Locators, Northern California DX […]

There may be many ways to confirm a QSO with another station (LoTW, E-qsl, etc.), but the top way, in my opinion, is the QSL card and especially the one we will receive for free […]

You may have read a previous article of mine (Greek), here on SZ1A, about skimmers. How do we put all this into practice? How will this technology be useful in our daily lives? How can […]

An Introduction Qatar OSCAR 100 launched on November 15, 2018, and is the first geostationary satellite with an amateur radio transponder on-board. It is a joint project of the Qatar Satellite Company (Es’hailSat), the Qatar […]

I wanted a quick & easy to install high-power multiband wire antenna for field-day and temporary operations and I’ve been hearing a lot about End-Fed Halfwave antennas lately. So I recently purchased the EFHW-8010-2K from Myantennas.com which […]

Written by Kostas Stamatis, SV1DPI Carl Luetzelschwab, K9LA back in 2004, wrote an article called “An Introductory Tutorial to W6ELProp – Running Your Own Propagation Predictions”. This file helped me a lot to understand how […]

The increasing power of personal computers along with a plethora of programming platforms offer easy, fast and efficient development of radio signal analysis and processing software. Internet is a set of tools that unite all […]