The South African Radio League (SARL) site reports the PDF of the March issue of their magazine Radio ZS is now 'available for everybody to read'
Among the articles in this issue are:
QO-100 geostationary satellite amateur radio transponders
Charging electric cars is not without its challenges
The Classic Rain-Gutter Loop Antenna — is it any Good?
Download Radio ZS PDF March Edition - http://www.sarl.org.za/Web3/Members/DoDocDownload.aspx?X=20190225134226E6ZVBnbV6p.PDF