NACO HF Antenna Collection 2002 Ed. Selected & Edited by Erwin David, G4LQI, An invaluable collection of outstanding articles and short pieces which have been published in the RSGB?s Radom magazine. Filled with antenna designs and information on ancillary topics such as feeders, tuners, baluns, testing, modelling and antenna safety. ISBN 1-872309-08-9 233 pages RSGB. 2002 Edition.