EFFECTIVE COMMUNICATION IS CRITICAL. Some hams use their skills to provide communications during emergencies and disasters. Others enjoy talking to people across the country and around the globe. Whichever the reason, the understanding and application of proper terminology is absolutely essential to Amateur Radio. This quick reference guide contains both the "Q-codes" and the most commonly used "Jargon" of amateur radio - all in one convenient Book! -This compilation is alphabetically indexed for fast look up and ease. -The most commonly used Q-codes are listed separately from the, "not so commonly used Q-codes" . A great reference tool for both the beginner and experienced Ham!