FM is often used by repeaters spread throughout the local area, which take in a signal and blast it back out at higher power. One of the more popular you may be aware of is frequency modulation, or FM. Voice modes are frequent on the airwaves. Voice and various digital modes now fill the airwaves. Morse code, or CW, is no longer the only mode of communicating. Transceivers have grown from spark gap transmitters and receivers into software-defined radio, which uses digital signal processing instead of hardware audio filters. And amateur radio - the original maker culture - was born.įast forward 100 years to present day, and you will find amateur radio has grown past spark gap transmitters and morse code. Radio experimenters (paired with the sinking of the RMS Titanic) ultimately resulted in the Radio Act of 1912 to limit these experimenters to certain frequencies.
#Fldigi no sound code#
More and more people began experimenting with spark gap transmitters, sending morse code wirelessly over long distances. You are no longer tied to the infrastructure of your power company or your internet provider.īeginning in the late 1890’s with Marconi sending wireless signals at greater and greater distances, other experimenters began laying the foundation for amateur radio in the early 1900’s. The ability to communicate thousands of miles with no infrastructure between your and your new friend is very freeing. Why? Making a long distance international contact using just your equipment and the equipment on the other side of the radio wave is exhilarating. It is alive and well, and you should check it out. I have been noticing a trend lately: when I tell people about my adventures in ham radio, their response is usually along the lines of, people still do that? Ham radio is not dead.
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