The service does have some government funding, but they have to find all the infrastructure costs themselves. In setup and it’s place in the national heart, it’s akin to the RNLI.
In order that people in the Outback could communicate during an emergency, Alf Traeger invented the pedal powered radio. It does beg the question how you’d use it if you were ‘crook’. However, a picture of a woman talking, while her daughter pedaled, answered that puzzle. Here is Harry trying it out.