During World War 1, the three Gisborne men carried out pioneering radio experimentation using a crystal set to listen for Morse signals.
The government had an embargo on the private use of receiving or transmitting sets, and to avoid detection they hid their aerial in a tree each day, extending it at night.
They picked up Morse signals from Western Samoa and after the war worked together to establish two-way short-wave links with amateur radio operators worldwide.
Mr Crawford said the three pioneers of 2YM originally operated a 25 watt home-constructed transmitter from Mr Stevens’ living room in his home in Wainui Road.
Due to port traffic noise the station soon moved to Stevens’ business, Gisborne Radio Co, at 258 Gladstone Road.
2YM changed its call sign to 2ZM in August 1926.
The station was run as a community service and relied on sponsorships and donations to survive, as private radio stations could not advertise.
All presenters and performers were volunteers.
Most programmes were presented live, including concerts, recitations, talent shows and children’s sessions.
The radio station was a prominent part of Gisborne life for 40 years, in good times and bad.
Generations of children went “on the air” with their varied talents in the children’s sessions.
A Mrs Elliott was Gisborne’s own Aunt Daisy for 19 years.
The station broadcast live from Childers Road Reserve and other locations.
In July 1928 the station played a live transmission of Gisborne’s Tom Heeney challenging Gene Tunney for the world heavyweight boxing title from New York’s Madison Square Garden.
Thousands of people met outside the radio station to support the local hero.
In 1931 as the only form of communication with the outside world, the radio station kept the Gisborne public up to date with the terrible news of the Napier earthquake.
In 1936 the government nationalised broadcasting but station 2ZM was one of two to avoid compulsory purchase, primarily because Mr Stevens refused to sell his licence.
The station closed on May 31, 1963, soon after Percy Stevens passed away at the age of 70.
The Herald believes that under the broadcasting legislation of the time, licences to operate private radio stations were issued to an owner and the licence became null and void with the death of that licence holder.