The majority of amateur radio operators worldwide reside in Japan , the United States , Thailand , South Korea , and the nations of Europe. Only the governments of Yemen and North Korea currently prohibit their citizens from becoming amateur radio operators. In some countries, acquiring an amateur radio license is difficult because of the bureaucratic processes or fees that place access to a license out of reach for most citizens. Most nations permit foreign nationals to earn an amateur radio license, but very few amateur radio operators are licensed in multiple countries.
Knowledge of propagation and antennas is needed to get the licence. The exam consists of two parts: Radio Theory and Practice Section 2: Morse Receiving and Sending: To pass the examination, a candidate must score a minimum of 40 50 for Grade I in each written section, and 50 55 for Grade I in aggregate for a pass. The second topic is the elementary theory of alternating currents. Portions include sinusoidal alternating quantities such as peak values, instantaneous values, RMS average values, phase; electrical resonance , and quality factor for radio circuits.
History of amateur radio An amateur radio station in the United Kingdom. Multiple transceivers are employed for different bands and modes. Computers are used for control, datamodes, SDR and logging.
Who is the Typical Ham? Amateur Radio operators come from all walks of life -- doctors, students, kids, politicians, truck drivers, movie stars, missionaries and even your average neighbor next door. They are of all ages, sexes, income levels and nationalities.