PDF Downloads

  click to download   Amateur Radio (G3TXQ) - Common-mode chokes
An in depth look into RF Chokes by G3TXQ.

 click to download  Amateur Radio (I0QM) - 1:1 Coax Balun

An insight of how to make a 1:1 Balun from coax cable.

click to download Understanding HF Propagation

VE2XIP editions
Amateur Radio views and reviews for Beginners

click to download Smith Chart Tutorial

Invented by Phillip H. Smith in 1939. Tutorial papers by Frank .A.Lynch

click to download HF Propagation by G4UCJ

WHAT IS THE MYSTERIOUS 'E' LAYER? The E LAYER of the ionosphere is the stuff of radio legends, fantastic feats and has puzzled scientists for as long as they have known about it's existence!