Fascination amateur radio

Amateur radio operators are neither “hobby radio operators” nor “amateur radio operators” in the sense of CB radio or similar applications.
They participate in the amateur radio service, which is based on its own legal framework.

 

Amateur radio, often referred to as 'ham radio', is a fascinating hobby that allows people all over the world to communicate with each other via radio waves. It is a versatile activity that promotes technical skills, experimentation and international friendship. Here are the most important aspects of amateur radio:

Amateur Radio Basics

Amateur radio is a non-commercial radio service used by private individuals to communicate with each other, expand their technical knowledge and provide a reliable means of communication in an emergency. To participate in amateur radio, you need a licence. This involves passing an examination covering knowledge of electronics, radio technology, operating rules and regulations. The licence gives radio amateurs the right to transmit on specific frequency bands.

Frequency bands and operating modes

Radio amateurs have access to a variety of frequency bands, which can vary depending on the class of licence and the country. These bands range from long wave (LF) and short wave (HF) to very high frequency (VHF) and ultra high frequency (UHF).
Operating modes: Amateur radio offers several modes of operation, including

• CW (Morse code): One of the oldest and most effective forms of communication.
• SSB (Single Side Band): A widely used method of voice transmission.
• FM (Frequency Modulation): Commonly used in FM for voice communication.
• Digital modes: Such as PSK31, RTTY, FT8 and FT4, which use digital signals for efficient communication.

Radio equipment

Radio amateurs use special radio equipment that can transmit and receive on different frequency bands. This equipment can be stationary, mobile or even portable (handheld radios). An essential part of any radio operation is the antenna. Antennas can be built or bought in various shapes and sizes, depending on the frequency band and location. There are also other accessories such as amplifiers, filters, power supplies and computer equipment, especially for digital modes.

 

Applications and activities

DXing is the attempt to communicate with stations in countries as far away as possible. The contest is about making as many contacts as possible in a given period of time.

Radio amateurs play an important role in emergency communications because they can communicate independently of conventional infrastructure.

Many radio amateurs build their own equipment, experiment with new antennas or develop new operating modes, or use APRS radio technology to transmit position data and other information in real time.

Society and community

There are many amateur radio clubs and organisations that link radio amateurs worldwide, such as the IARU (International Amateur Radio Union) and national organisations such as USKA (Union of Swiss Shortwave Amateurs) or DARC (German Amateur Radio Club).

Events such as Field Day, where radio amateurs set up their stations in the open air and transmit in often improvised conditions, are also popular.

Radio amateurs confirm contact by exchanging a QSL card. In the age of the Internet, there are also several electronic systems for confirming a radio contact.

Legal regulations

Amateur radio is regulated worldwide by national and international laws that ensure that radio frequencies are used in a responsible and coordinated manner. Different countries have different classes of licences that regulate access to specific frequency bands and power levels.

 

So amateur radio is more than a hobby - it's a blend of technology, communication and community that connects people around the world and often provides a valuable service in emergency communications.