Alfred Traeger was born in Glenlee, near Dimboola, in Victoria. His German grandparents settled in South Australia in 1848. He was brought up on his father's farm at Balaklava, north of Adelaide.
John Flynn met Traeger in 1925, when Flynn had heard that a man living in Adelaide had a generator. He burst in to Traeger's workshop and without any greeting, asked "Have you still got that generator?"
He then proceeded to plead with Traeger to sell it, and asked how much he wanted for it.
Traeger said years later: "I thought I would ask for 30 pounds but then that seemed a lot of money so I said the price was twenty nine pounds, ten shillings."
Flynn agreed to the amount, took out his wallet and counted the money.
In 1927, Traeger and Flynn went to Cloncurry to lay the groundwork for the trial of the Royal Flying Doctor Service. While there, they gave the locals an exciting introduction to the wonders of radio.
On Melbourne Cup day, Traeger set up his radio equipment in the backyard of the Post Office Hotel and picked up the broadcast of the Melbourne Cup.
However Morse code, up until now, had been a problem for those who were not skilled in the system.
In 1931, Traeger created a Morse typewriter keyboard, enabling operators to type their messages in Morse code. Each set cost 33 pounds.
In all he built 3000 pedal sets. Later, he designed and built a simple radiotelephony set which meant that the outpost stations could communicate by voice instead of Morse code, another great advance.
Transistorised receivers later replaced pedal radios, making it possible for doctors to give radio consultations. It also meant neighbours, families and friends, scattered over thousands of square kilometres, could exchange news and gossip after normal transmission hours.
Traeger's sets spread across two thirds of the Australian continent, covering more than five million square kilometres, a territory as large as western Europe or almost two thirds the size of the United States.
His pedal powered radios are recognised as a fundamental element in the inception of the RFDS in Australia, allowing people in the Outback to contact the Service no matter where they were.
Learn more about the history of the RFDS
