Bøger udgivet af Jokalym Press

Theory and application of radio antennas without Maxwell's equations. Matter is explained in series of technical drawings, with mathematics explained in geometry. Explains antenna as sequence of segments, showing resonance, resistance and reactance. Explains some common antennas: dipoles, Yagi-Udas, Quads, Fractals, and dipole curtains.

This is Michael's collection of yarns for leisure reading - airports, travel, waiting rooms, beachside - any time otherwise wasted. It's ten-plus hours of entertainment paced in sixty installments: stories of humor, advice, coping with life, and just taking it a day at a time, ever watchful for the unusuals and enjoying them to the utmost. Carry a copy in your briefcase, purse or travel bag and you will enjoy those daily intermissions.

Over the years Michael shared his most memorable anecdotes with his daughters as they grew to young ladies. When they reached adulthood and moved away, they missed this connection with their father and asked he set them down on paper, not only for them but for future generations. Their request was the catalyst for this book. In this collection of independent readings, Michael spins sixty yarns around those anecdotes, some humerous, some thoughtful, some instructive, and some of love. You may be able to identify with these remembrances, but there are quite a few that will delight and surprise you, so take a bit of time, relax, and enjoy.

For the radio amateur, The Old Patriarch K3MT reccollects a number of HF antenna projects. Many are about simple antennas made of ordinary wire. A few concern the effects of real dirt close to the antenna and how it reacts with the antenna pattern. Trchnical approach is given with plane geometry.

You - Coax - and Smith: A guide to drawing and using the Smith Chart with transmission lines, takes the reader through AC impedance measurements and transformation to polar coordinates as the smith chart. It includes several applications such as determining the impedance of a transmission line, design of matching stubs. Instruction on how to draw the smith chart from scratch are also given. The mathematics is reduced to a sequence of drawings, using plane geometry as the main mathematics tool.

Revised, third edition of Fiedler and Famer's classical handbook of High Frequency (HF) radio communications by the Near Vertical Incidence Skywave mode, enabling region-wide communication at lower HF frequencies. It is of particular interest to radio amateurs and emergency communicators, documenting years of military experience.